Jeffrey B. King
Jeffrey B. King, MD, is a gastroenterologist at National Jewish Health. Dr. King serves as Chief of the Division of Gastroenterology.
Chief, Division of Gastroenterology
Medical Director, GI Procedures Unit
Associate Professor
Department of Medicine
Previously a 5280 Top Doctor (1 year)

Special Interests

Colon cancer prevention, hereditary colorectal cancer syndromes, celiac disease, eosinophilic esophagitis, motility disorders, pelvic floor dysfunction, inflammatory bowel disease, functional GI disorders/irritable bowel syndrome, gastroesophageal reflux disease, Barrett's esophagus, fatty liver disease, viral hepatitis, alcoholic liver disease.


University of Massachusetts Medical School,
Duke University,
Boston University Medical Center, Chief Resident
Boston University Medical Center,
University of North Carolina at Chapel Hill,

Awards & Recognition

2014: UNC Award for Excellence in Clinical Gastroenterology
2012: Ad Hoc reviewer for American Journal of Physiology - Gastrointestinal and Liver Physiology

Board Certification

2008: Internal Medicine

Professional Memberships

American Gastroenterological Association
American Society for Gastrointestinal Endoscopy


King JB, von Furstenberg RJ, Smith BJ, McNaughton KK, Galanko JA, Henning SJ. CD24 can be used to isolate Lgr5+ putative colonic epithelial stem cells in mice. Am J Physiol Gastrointest Liver Physiol. 303(4): G442-52, 2012.

Conflicts of Interest

National Jewish Health physicians and scientists may collaborate with pharmaceutical or other industries to develop medical and scientific breakthroughs or to provide education on trends in quality medical practice and outcomes to physicians and health professionals around the country. National Jewish Health maintains a strict conflict of interest policy to ensure that all potential conflicts are clearly visible and that management plans are put in place in order to further innovation and education while ensuring the protection of our patients and the integrity of our research. National Jewish Health publicly discloses any payment to our physicians or scientists. View this faculty member’s industry relationships and collaborations.

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Contact Information

  • Office: 877.225.5654
  • Fax: 303.270.2839

Patient Ratings

The Patient Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. This survey is about the patient care experience and does not address crucial characteristics like medical decision-making, prescribing the best therapy, and patient outcomes.

Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Provider showed concern


Spoke using clear language

Provider explained things clearly

Provider included you in decisions

Amount of time spent with you

Confidence in your doctor

Likelihood of recommending this provider


Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.

National Jewish Health PatientMay, 2023
Although Dr, King could not come up with a cause, he did try to think of possibilities just as about 12 other doctors had already done. He did tell me what the next step was if the symptoms got worse.

National Jewish Health PatientMay, 2023
I appreciated that he had a conversation WITH me instead of talking TO me. He explained the purposes of my medications and what they were hoping to achieve with them and talked to me about upcoming tests and what he was hoping to achieve with them. He talked with my other doctors beforehand so we could discuss a total care approach using his expertise to help guide my treatments in other specialties. He answered all my questions without making me feel dumb and he left me feeling confident in my care before my procedure.

National Jewish Health PatientMay, 2023
Dr. King is an exceptional doctor and I say this having literally had a dozen GI doctors over the many years of addressing my GERD & SIBO problems. The staff that surrounds him also is very professional & excellent.

National Jewish Health PatientApril, 2023
Highly unusual to find this level of health care today.

National Jewish Health PatientMarch, 2023
Dr. King is one of the finest doctors I have ever encountered. His level of understanding and concern for my well-being should be a model for other physicians! Not only doe she have exceptional listening skills, he was able to answer my questions when I stopped him to ask side questions, but he was able to relate answers to my condition and offer possible altenatives to what I expected. Dr. King never looked at his watch or made me feel like I was imposing on his time, in fact he went out of his way to make sure I throughly understood his medical advice, and any alternatives to any immdeicate action which needed to be taken

National Jewish Health PatientMarch, 2023
Have not received any treatment options at this time. I have to wait until May 3rd for consultation for treatment. Have not been included regarding decisions in care up to this point.

National Jewish Health PatientMarch, 2023
Dr. King is an excellent physician even though he is out of state I would like to continue to see him for my annual appointments

National Jewish Health PatientMarch, 2023
I was Dr. Ku's patient and this was my first visit with Dr. King...I was impressed.

National Jewish Health PatientMarch, 2023
Dr King exceeded expectations

National Jewish Health PatientMarch, 2023
Dr. King was amazing. He took the time to explain everything to me and put me at ease for my future procedures.

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