Division of Pulmonary, Critical Care and Sleep Medicine Make an Appointment Ask a Question Refer Patient Irina Petrache, MD, Division Chief What do we do? The Division of Pulmonary, Critical Care and Sleep Medicine at National Jewish Health is one of the largest specialty groups in the nation. Our pulmonologists diagnose and treat adults with complex lung (respiratory) diseases and sleep disorders. Patients are evaluated and treated by doctors in both clinic and hospital settings. Our pulmonology care programs are designed to improve quality of life and reduce long-term cost associated with health care. Why National Jewish Health? As the nation’s leading respiratory hospital for 124 years, our pulmonologists are widely recognized for excellence in diagnosing, treating and researching lung diseases and sleep disorders. We have unparalleled pulmonology expertise and internationally recognized doctors and scientists who bring their extensive experience and knowledge to the most challenging respiratory cases from around the world. Our Section of Sleep Medicine and Section of Critical Care are an integrated part of the Division of Pulmonary, Critical Care and Sleep Medicine. Irina Petrache, MD + × Irina Petrache, MD Irina Petrache, MD, is a pulmonologist at National Jewish Health. Dr. Petrache serves as Chief of the Division of Pulmonary, Critical Care and Sleep Medicine and Associate Vice President of Faculty Development. Chief, Division of Pulmonary, Critical Care & Sleep Medicine Associate Vice President of Faculty Development Professor of Medicine Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Wollowick Chair in COPD Research View Full Profile Make an Appointment Multispecialty Approach Our pulmonologists work closely with other National Jewish Health doctors including cardiologists, gastroenterologists, rheumatologists, radiologists and pathologists to provide care that is thorough, multidisciplinary and tailored to the needs of each patient. Our doctors are specialists and they take the time to get to know our patients and really understand their conditions and concerns. Advanced Diagnostic Services In addition to having multiple specialties in one location, our patients benefit from having the most advanced imaging and pulmonary testing services on site. Institute for Advanced Biomedical Imaging® — Cutting-edge technology and world-renowned thoracic (chest) radiologists Pulmonary Physiology Services Laboratory — One of the largest and leading-edge pulmonary function laboratories in the country with unparalleled accuracy. Assessments and evaluations include: Lung function and efficiency Lung size, resistance, elasticity, compliance and specific conductance of the airways Complex metabolic exercise Exhaled nitric oxide, lung mechanic measurements and other special pulmonary physiology procedures that are unavailable at most facilities Vocal cord dysfunction at rest and during exercise Complex gastroesophageal reflux and laryngopharyngeal aspiration lung Pulmonary Hypertension (PH) Section – Outpatient and inpatient multidisciplinary assessment and treatment of PH and right heart dysfunction by specialized pulmonologists Phenotyping of pulmonary hypertension severity at rest and during exercise Access to clinical trials with the newest drugs to treat this heart-lung condition Multidisciplinary Sleep Medicine Program offers At home and in-lab sleep testing with state-of-the-art technology Consultation with board certified sleep doctors Sleep mask-fitting program for a comfortable personalized experience Assessment and management of insomnia and other behavioral sleep conditions Clinical Trials We have a robust clinical trials program with more than 300 active clinical trials in progress. Our patients have access to the latest, most advanced clinical trials and effective treatments through research conducted here. National Recognition – Special Designations National Jewish Health is recognized by a variety of national organizations and has received the following designations of distinction for high-quality care and research in pulmonology; occupational and environmental health; critical care; and sleep medicine: View National Recognition – Special Designations Unique Centers NTM Center of Excellence Our NTM Center of Excellence serves the needs of patients, doctors, health-care providers and scientists. Its mission is to study NTM in a comprehensive manner and generate a catalog of physical, biological, chemical and genetic characteristics of these organisms; relate the phenotypic (physical, biological, and chemical) and genotypic (DNA) characteristics to the behavior of these species/strains of NTM in patients; test organism resistance and drug susceptibility to various strains of NTM; perform pharmacokinetic testing for patients undergoing drug treatment for NTM; and improve the education and training about NTM for health professionals and patients. Center of Excellence for Silicosis and its Prevention First of its kind in the nation, our Center of Excellence for Silicosis and its Prevention identifies at-risk construction workers and tailors diagnoses and treatments; works with government entities to create safety programs for employees; and helps educate industry professionals as they develop programs to keep workers safe. Education Pulmonary Fellows at the University of Colorado Denver rotate through Pulmonary Physiology Services at National Jewish Health to learn about pulmonary function testing, exercise testing and other specialized studies. Fellows may also see patients under the supervision of our pulmonoligists. Learn more about the Pulmonary Fellowship. Research We conduct research to advance the understanding and treatment of asthma, COPD and other pulmonary diseases. Learn about our research. Division of Pulmonary, Critical Care and Sleep Medicine Robert A. Sandhaus, MD, PhD, FCCP + × Robert A. Sandhaus, MD, PhD, FCCP Robert A. Sandhaus, MD, is a pulmonologist at National Jewish Health. Dr. Sandhaus is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Make an Appointment Ann Granchelli, MD + × Ann Granchelli, MD Ann Granchelli, MD, is a pulmonologist at National Jewish Health. Dr. Granchelli is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment James Woodrow, MD + × James Woodrow, MD James Woodrow, MD, is a pulmonologist at National Jewish Health. Dr. Woodrow is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Irina Petrache, MD + × Irina Petrache, MD Irina Petrache, MD, is a pulmonologist at National Jewish Health. Dr. Petrache serves as Chief of the Division of Pulmonary, Critical Care and Sleep Medicine and Associate Vice President of Faculty Development. Chief, Division of Pulmonary, Critical Care & Sleep Medicine Associate Vice President of Faculty Development Professor of Medicine Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Wollowick Chair in COPD Research View Full Profile Make an Appointment View all (78) Faculty & Staff in Division of Pulmonary, Critical Care and Sleep Medicine Find a Doctor Division of Pulmonary, Critical Care and Sleep Medicine Mark S. Aloia, PhD + × Mark S. Aloia, PhD Mark S. Aloia, PhD, is a psychologist at National Jewish Health. Dr. Aloia is in the Section of Sleep Medicine and Department of Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Sleep Medicine View Full Profile Evgeny V. Berdyshev, PhD + × Evgeny V. Berdyshev, PhD Evgeny V. Berdyshev, PhD, is a researcher at National Jewish Health. Dr. Berdyshev is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile David A. Beuther, MD, PhD, FCCP + × David A. Beuther, MD, PhD, FCCP David A. Beuther, MD, PhD, is a pulmonologist at National Jewish Health. Dr. Beuther is in the Division of Pulmonary, Critical Care and Sleep Medicine. Division of Pulmonary, Critical Care & Sleep Medicine Professor Department of Medicine Chief Medical Information Officer View Full Profile Patient Rating 5 out of 5 stars Make an Appointment Russell P. Bowler, MD, PhD + × Russell P. Bowler, MD, PhD Russell P. Bowler, MD, is a pulmonologist at National Jewish Health. Dr. Bowler is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.4 out of 5 stars Make an Appointment James P. Bridges, PhD + × James P. Bridges, PhD James P. Bridges, PhD, is a researcher at National Jewish Health. Dr. Bridges is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Amy Cacace, MD + × Amy Cacace, MD Amy Cacace, MD, is a intensivist at National Jewish Health. Dr. Cacace is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Hong Wei Chu, MD + × Hong Wei Chu, MD Hong Wei Chu, MD, is a Professor at National Jewish Health. Dr. Chu serves as the Assistant Vice President for Academic Affairs, and as the Research Director for the Office of Research Innovation. Professor Assistant Vice President for Academic Affairs Research Director for the Office of Research Innovation View Full Profile Joseph Cooley, DO + × Joseph Cooley, DO Joseph Cooley, DO, is a pulmonologist at National Jewish Health. Dr. Cooley is in the Division of Pulmonary, Critical Care & Sleep Medicine. Instructor Interstitial Lung Disease Program Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment James D. Crapo, MD + × James D. Crapo, MD James D. Crapo, MD, is a pulmonologist at National Jewish Health. Dr. Crapo is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Azzeddine Dakhama, PhD + × Azzeddine Dakhama, PhD Azzeddine Dakhama, PhD, is a researcher at National Jewish Health. Dr. Dakhama is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Mohammad Dalabih, MD + × Mohammad Dalabih, MD Mohammad Dalabih, MD, is a pulmonologist at National Jewish Health. Dr. Dalabih is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Gregory P. Downey, MD + × Gregory P. Downey, MD Gregory P. Downey, MD, is a pulmonologist at National Jewish Health. Dr. Downey serves as the Executive Vice President of Academic Affairs in the Department of Medicine. Professor Executive Vice President, Academic Affairs Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 5 out of 5 stars Make an Appointment Jack D. Edinger, PhD + × Jack D. Edinger, PhD Jack D. Edinger, PhD, is an insomnia specialist at National Jewish Health. Dr. Edinger is in the Section of Sleep Medicine and Department of Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Sleep Medicine View Full Profile Make an Appointment Evans Fernández, MD, MS + × Evans Fernández, MD, MS Evans Fernández, MD, is a pulmonologist at National Jewish Health. Dr. Fernández Pérez is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment David M. Ferraro, MD + × David M. Ferraro, MD David M. Ferraro, MD, is a pulmonologist at National Jewish Health. Dr. Ferraro is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment James H. Finigan, MD + × James H. Finigan, MD James H. Finigan, MD, is a pulmonologist at National Jewish Health. Dr. Finigan serves as Director of The Respiratory Centers of Excellence, Medical Director of the Lung Cancer Screening Program and Respiratory Institute Director for the Office of Research Innovation. Director, The Respiratory Centers of Excellence Medical Director, Lung Cancer Screening Program Professor Respiratory Institute Director for the Office of Research Innovation Division of Pulmonary, Critical Care & Sleep Medicine Division of Oncology, Cancer Center Department of Medicine View Full Profile Make an Appointment Stephen K. Frankel, MD, FCCM, FCCP + × Stephen K. Frankel, MD, FCCM, FCCP Stephen K. Frankel, MD, is a pulmonologist at National Jewish Health. Dr. Frankel serves as the Executive Vice President of Clinical Affairs. Executive Vice President, Clinical Affairs Professor of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 5 out of 5 stars Make an Appointment Marjorie Patricia George, MD + × Marjorie Patricia George, MD Marjorie Patricia George, MD, is a pulmonologist at National Jewish Health. Dr. George is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Director, Pulmonary Hypertension Program Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Anthony N. Gerber, MD, PhD + × Anthony N. Gerber, MD, PhD Anthony N. Gerber, MD, is a pulmonologist and Grant Program Director for the Office of Research Innovation at National Jewish Health. Dr. Gerber is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Grant Program Director for the Office of Research Innovation Department of Immunology and Genomic Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Kristen Glisinski, MD + × Kristen Glisinski, MD Kristen Glisinski, MD, is an interventional pulmonologist at National Jewish Health. Dr. Glisinski is in the Division of Pulmonary, Critical Care, and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Nir M. Goldstein, MD, FCCP + × Nir M. Goldstein, MD, FCCP Nir M. Goldstein, MD, is a pulmonologist at National Jewish Health. Dr. Goldstein is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.5 out of 5 stars Make an Appointment Ann Granchelli, MD + × Ann Granchelli, MD Ann Granchelli, MD, is a pulmonologist at National Jewish Health. Dr. Granchelli is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Vamsi P. Guntur, MD, MSc + × Vamsi P. Guntur, MD, MSc Vamsi P. Guntur, MD, is a pulmonologist at National Jewish Health. Dr. Guntur is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Katherine Hisert, MD, PhD + × Katherine Hisert, MD, PhD Katherine Hisert, MD, PhD, is a pulmonologist at National Jewish Health. Dr. Hisert is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Tristan J. Huie, MD + × Tristan J. Huie, MD Tristan J. Huie, MD, is a pulmonologist at National Jewish Health. Dr. Huie is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Patrick S. Hume, MD, PhD + × Patrick S. Hume, MD, PhD Patrick S. Hume, MD, PhD, is a pulmonologist at National Jewish Health. Dr. Hume is in the Division of Pulmonary, Critical Care and Sleep Medicine. Instructor of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Yoko Ito, MD, PhD + × Yoko Ito, MD, PhD Yoko Ito, MD, is a pulmonologist at National Jewish Health. Dr. Ito is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile William J. Janssen, MD + × William J. Janssen, MD William J. Janssen, MD, is a pulmonologist at National Jewish Health. Dr. Janssen serves as the Section Head of Critical Care Medicine. Section Head, Critical Care Medicine Professor of Medicine Section of Critical Care Medicine Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Rebecca C. Keith, MD + × Rebecca C. Keith, MD Rebecca C. Keith, MD, is a pulmonologist at National Jewish Health. Dr. Keith is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Interstitial Lung Disease Program Autoimmune Lung Center View Full Profile Patient Rating 4.6 out of 5 stars Make an Appointment Matthew Koslow, MD + × Matthew Koslow, MD Matthew Koslow, MD, is a pulmonologist at National Jewish Health. Dr. Koslow is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Tim Lahm, MD, ATSF + × Tim Lahm, MD, ATSF Tim Lahm, MD, is a physician scientist at National Jewish Health. Dr. Lahm is in the Division of Pulmonary, Critical Care and Sleep Medicine and Department of Medicine. Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Teofilo L. Lee-Chiong Jr, MD + × Teofilo L. Lee-Chiong Jr, MD Teofilo L. Lee-Chiong Jr, MD, is a pulmonologist at National Jewish Health. Dr. Lee-Chiong is in the Section of Sleep Medicine and Department of Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Sleep Medicine View Full Profile Patient Rating 4.7 out of 5 stars Make an Appointment Gabriel C. Lockhart, MD + × Gabriel C. Lockhart, MD Gabriel C. Lockhart, MD, is a pulmonologist at National Jewish Health. Dr. Lockhart is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Director of the Intensive Care Unit / Saint Joseph Hospital Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Sherstin T. Lommatzsch, MD + × Sherstin T. Lommatzsch, MD Sherstin T. Lommatzsch, MD, is a pulmonologist at National Jewish Health. Dr. Lommatzsch is in the Section of Critical Care Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine View Full Profile Make an Appointment Steven E. Lommatzsch, MD + × Steven E. Lommatzsch, MD Steven E. Lommatzsch, MD, is a pulmonologist at National Jewish Health. Dr. Lommatzsch is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor of Medicine Adult Site Co-Director, PCD Foundation Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 5 out of 5 stars Make an Appointment Kenneth E. Lyn-Kew, MD + × Kenneth E. Lyn-Kew, MD Kenneth E. Lyn-Kew, MD, is a pulmonologist at National Jewish Health. Dr. Lyn-Kew is in the Section of Critical Care Medicine and Department of Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine View Full Profile Sean Maddock, MD + × Sean Maddock, MD Sean Maddock, MD, is a pulmonologist at National Jewish Health. Dr. Maddock is in the Division of Pulmonary, Critical Care and Sleep Medicine. Instructor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Susan M. Majka, PhD + × Susan M. Majka, PhD Susan M. Majka, PhD, is a researcher at National Jewish Health. Dr. Majka is in the Division of Pulmonary, Critical Care and Sleep Medicine and the Department of Immunology and Genomic Medicine. Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine Department of Immunology and Genomic Medicine View Full Profile Barry J. Make, MD + × Barry J. Make, MD Barry J. Make, MD, is a pulmonologist at National Jewish Health. Dr. Make is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Make an Appointment Adriel J. Malavé, MD + × Adriel J. Malavé, MD Adriel J. Malavé, MD, is a pulmonologist at National Jewish Health. Dr. Malavé is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Kenneth C. Malcolm, PhD + × Kenneth C. Malcolm, PhD Kenneth C. Malcolm, PhD, is a researcher at National Jewish Health. Dr. Malcolm is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Vipin Malik, MD + × Vipin Malik, MD Vipin Malik, MD, is a pulmonologist at National Jewish Health. Dr. Malik is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Laurie A. Manka, MD + × Laurie A. Manka, MD Laurie A. Manka, MD, is a pulmonologist at National Jewish Health. Dr. Manka is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Richard J. Martin, MD + × Richard J. Martin, MD Richard J. Martin, MD, is a Professor Emeritus at National Jewish Health. Dr. Martin served as Chair of the Department of Medicine July 1, 2004 – June 30, 2019. Chair, Department of Medicine (July 1, 2004 – June 30, 2019) Department of Medicine Edelstein Family Chair in Adult Pulmonary Medicine View Full Profile Robert J. Mason, MD + × Robert J. Mason, MD Robert J. Mason, MD, is a Professor Emeritus at National Jewish Health. Dr. Mason served as Associate Vice President of Academic Affairs. Professor Emeritus Associate Vice President, Academic Affairs Cetalie & Marcel Weiss Chair in Pulmonary Disease Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Alexandra McCubbrey, PhD + × Alexandra McCubbrey, PhD Alexandra McCubbrey, PhD, is a researcher at National Jewish Health. Dr. McCubbrey is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Hilda Metjian, MD, FCCP + × Hilda Metjian, MD, FCCP Hilda Metjian, MD, is a pulmonary and critical care medicine specialist at National Jewish Health. Dr. Metjian is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Adult Site Director, PCD Foundation Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Michael P. Mohning, MD + × Michael P. Mohning, MD Michael P. Mohning, MD, is a pulmonologist at National Jewish Health. Dr. Mohning is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Interstitial Lung Disease Program View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Kara Mould, MD, MPH + × Kara Mould, MD, MPH Kara Mould, MD, is a pulmonologist at National Jewish Health. Dr. Mould is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Christine Nguyen, DO + × Christine Nguyen, DO Christine Nguyen, DO, is a pulmonologist at National Jewish Health. Dr. Nguyen is in the Division of Pulmonary, Critical Care and Sleep Medicine. Instructor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Jerry A. Nick, MD + × Jerry A. Nick, MD Jerry A. Nick, MD, is a pulmonologist at National Jewish Health. Dr. Nick is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Director, Adult Cystic Fibrosis Program Rebecca Runyon Bryan Chair in Cystic Fibrosis Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Mari Numata-Nakamura, MD, PhD + × Mari Numata-Nakamura, MD, PhD Mari Numata-Nakamura, MD, is a researcher at National Jewish Health. Dr. Numata-Nakamura is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile James K. O'Brien, MD, FACP, FCCP + × James K. O'Brien, MD, FACP, FCCP James K. O'Brien, MD, is a pulmonologist at National Jewish Health. Dr. O'Brien is in the Section of Critical Care Medicine and Department of Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine View Full Profile Patient Rating 4.6 out of 5 stars Make an Appointment J. Tod Olin, MD, MSCS + × J. Tod Olin, MD, MSCS J. Tod Olin, MD, MSCS, is a pediatric pulmonologist and director of the National Jewish Health Exercise and Performance Breathing Center in Denver. Dr. Olin cares for children and adults who have breathing problems during exercise, including asthma, exercise-induced laryngeal obstruction, vocal cord dysfunction, and other less common conditions. Associate Professor Director, Exercise and Performance Breathing Center Division of Pediatric Pulmonary Medicine Department of Pediatrics Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Claudia Onofrei, MD, MSc + × Claudia Onofrei, MD, MSc Claudia Onofrei, MD, is a pulmonologist at National Jewish Health. Dr. Onofrei is in the Division of Pulmonary, Critical Care and Sleep Medicine. Instructor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Irina Petrache, MD + × Irina Petrache, MD Irina Petrache, MD, is a pulmonologist at National Jewish Health. Dr. Petrache serves as Chief of the Division of Pulmonary, Critical Care and Sleep Medicine and Associate Vice President of Faculty Development. Chief, Division of Pulmonary, Critical Care & Sleep Medicine Associate Vice President of Faculty Development Professor of Medicine Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Wollowick Chair in COPD Research View Full Profile Make an Appointment Milene Saavedra, MD + × Milene Saavedra, MD Milene Saavedra, MD, is a pulmonologist at National Jewish Health. Dr. Saavedra is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Make an Appointment Howard Saft, MD, MS + × Howard Saft, MD, MS Howard Saft, MD, is a pulmonologist at National Jewish Health. Dr. Saft is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Robert A. Sandhaus, MD, PhD, FCCP + × Robert A. Sandhaus, MD, PhD, FCCP Robert A. Sandhaus, MD, is a pulmonologist at National Jewish Health. Dr. Sandhaus is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Make an Appointment Sarah Sasse, PhD + × Sarah Sasse, PhD Sarah Sasse, PhD, is a researcher at National Jewish Health. Dr. Sasse is in the Division of Pulmonary, Critical Care and Sleep Medicine. Staff Research Faculty Member Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Elaine M K Schwartz, MD, FCCP + × Elaine M K Schwartz, MD, FCCP Elaine M K Schwartz, MD, is a pulmonologist at National Jewish Health. Dr. Schwartz is in the Section of Critical Care Medicine and Department of Medicine. Professor Medical Director, National Jewish Critical Care Service at Rose Medical Center Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine View Full Profile Make an Appointment Michael D. Schwartz, MD, FCCM + × Michael D. Schwartz, MD, FCCM Michael D. Schwartz, MD, is a pulmonologist at National Jewish Health. Dr. Schwartz is in the Section of Critical Care Medicine and Department of Medicine. Medical Director Professor of Medicine Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Kelly Schweitzer, PhD + × Kelly Schweitzer, PhD Kelly Schweitzer, PhD, is a researcher at National Jewish Health. Dr. Schweitzer is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Joshua J. Solomon, MD + × Joshua J. Solomon, MD Joshua J. Solomon, MD, is a pulmonologist at National Jewish Health. Dr. Solomon is in the Section of Critical Care Medicine and Department of Medicine. Director, Interstitial Lung Disease Program Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Amanda Stephens, MD + × Amanda Stephens, MD Amanda Stephens, MD, is a pulmonologist at National Jewish Health. Dr. Stephens is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Evan L. Stepp, MD + × Evan L. Stepp, MD Evan L. Stepp, MD, is a pulmonologist at National Jewish Health. Dr. Stepp is in the Division of Pulmonary, Critical Care and Sleep Medicine. Director of Highlands Ranch Clinic Associate Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Laura Sweatman, PA-C + × Laura Sweatman, PA-C Laura Sweatman, PA-C, is a physician assistant at National Jewish Health. Ms. Sweatman is in the Division of Pulmonary, Critical Care and Sleep Medicine. Physician Assistant Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Jeff Swigris, DO, MS + × Jeff Swigris, DO, MS Jeff Swigris, DO, is a pulmonologist at National Jewish Health. Dr. Swigris is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Make an Appointment Jennifer L. Taylor-Cousar, MD, MSCS + × Jennifer L. Taylor-Cousar, MD, MSCS Jennifer L. Taylor-Cousar, MD, is a board certified pediatric and adult pulmonologist. Dr. Taylor-Cousar specializes in cystic fibrosis and pediatric lung disease. Medical Director, Clinical Research Services Co-Director, Adult Cystic Fibrosis Program Director, Cystic Fibrosis Therapeutics Development Center Adult Program Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine Division of Pediatric Pulmonary Medicine Department of Pediatrics President, Medical Staff View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Sheila Tsai, MD + × Sheila Tsai, MD Sheila Tsai, MD, is a pulmonologist at National Jewish Health. Dr. Tsai is serves as the Section Head of Sleep Medicine. Section Head, Sleep Medicine Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine Section of Sleep Medicine View Full Profile Patient Rating 4.6 out of 5 stars Make an Appointment Dennis R. Voelker, PhD + × Dennis R. Voelker, PhD Dennis R. Voelker, PhD, is a researcher at National Jewish Health. Dr. Voelker is in the Division of Pulmonary, Critical Care and Sleep Medicine. Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Ellen Volker, MD, MSPH + × Ellen Volker, MD, MSPH Ellen Volker, MD, is a pulmonologist specializing in interventional pulmonology at National Jewish Health. Dr. Volker is in the Division of Pulmonary, Critical Care and Sleep Medicine. Associate Professor Director, Interventional Pulmonology Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Ryan Webster, MD + × Ryan Webster, MD Ryan Webster, MD, is a pulmonologist at National Jewish Health. Dr. Webster is in the Division of Pulmonary, Critical Care and Sleep Medicine. National Jewish Health South Denver Instructor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Make an Appointment Michael E. Wechsler, MD, MMSc + × Michael E. Wechsler, MD, MMSc Michael E. Wechsler, MD, is a pulmonologist at National Jewish Health. Dr. Wechsler is in the Division of Pulmonary, Critical Care and Sleep Medicine. Director, The Cohen Family Asthma Institute Professor Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Catherine Wittman, MD + × Catherine Wittman, MD Catherine Wittman, MD, is a pulmonologist at National Jewish Health. Dr. Wittman is in the Section of Critical Care Medicine and Department of Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Section of Critical Care Medicine Department of Medicine View Full Profile Patient Rating 4.7 out of 5 stars Make an Appointment James Woodrow, MD + × James Woodrow, MD James Woodrow, MD, is a pulmonologist at National Jewish Health. Dr. Woodrow is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Patient Rating 4.9 out of 5 stars Make an Appointment Zulma X. Yunt, MD + × Zulma X. Yunt, MD Zulma X. Yunt, MD, is a pulmonologist at National Jewish Health. Dr. Yunt is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor of Medicine Department of Medicine Division of Pulmonary, Critical Care & Sleep Medicine View Full Profile Patient Rating 4.8 out of 5 stars Make an Appointment Daniel Zank, MD + × Daniel Zank, MD Daniel Zank, MD, is a pulmonologist at National Jewish Health. Dr. Zank is in the Division of Pulmonary, Critical Care and Sleep Medicine. Assistant Professor Division of Pulmonary, Critical Care & Sleep Medicine Department of Medicine View Full Profile Make an Appointment Find a Doctor Nurses & Medical Staff LyNette Rasmussen, NP Katherine Rosen, RN, MSN, ANP-C Vanessa Castro, PA Cori Fratelli, RN, MSN, FNP-C Danielle Pohlit, PA-C Jackie Homra, FNP-C Hayley Heinz, RN, FNP Jenna Summers, FNP-C Programs and Services COPD Program Critical Illness Recovery Center Cystic Fibrosis Program (Adult) Interstitial Lung Disease (ILD) Program Interventional Pulmonology Program Lung Nodule Clinic Pulmonary Physiology Services Related Programs Section of Critical Care Section of Sleep Medicine Sleep Center Conditions We Treat Airway Obstruction Alpha-1 Antitrypsin Deficiency Overview Asthma Overview Autoimmune Lung Diseases Bronchiectasis Overview Chronic Bronchitis Chronic Cough Chronic Respiratory Failure COPD Overview Cystic Fibrosis (CF) Dyspnea (Shortness of Breath) Emphysema Eosinophilic Lung Diseases Familial Pulmonary Fibrosis Hypersensitivity Pneumonitis Interstitial Lung Disease (ILD) Overview Lung Nodules Lymphangioleiomyomatosis (LAM) Pleural Effusion Pneumonia Pulmonary Alveolar Proteinosis (PAP) Pulmonary Embolism Pulmonary Hypertension: Overview Respiratory Failure Sleep Disorders Tracheobronchomalacia Unexplained Hypoxia Vocal Cord Dysfunction (VCD) Education Pulmonary Fellows at the University of Colorado Denver rotate through Pulmonary Physiology Services at National Jewish Health to learn about pulmonary function testing, exercise testing and other specialized studies. Fellows may also see patients under the supervision of our faculty. Learn more about the Pulmonary Fellowship. Research Our division conducts research to advance the understanding and treatment of asthma, COPD and other pulmonary diseases. Learn about our research.