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Peter Le, M.D.

About Peter Le, M.D.

Dr. Peter Le is a native of Colorado. He attended Tufts University in Boston, Massachusetts for his undergraduate studies and graduated magna cum laude with a degree in biochemistry. During his undergraduate education, he also studied at Pembroke College at Oxford University for one year. He received his medical degree from the University of Connecticut School of Medicine. At graduation, Dr. Le was the recipient of the James H. Foster award for “excellence in medical education and commitment to promoting critical thinking.” He completed his internal medicine internship and residency at Yale-New Haven Hospital of Yale University. While there, Dr. Le was selected by his peers for the Frederick L Sachs, MD award “for possessing those attributes of the heart and mind that best exemplify the dedication to learning and empathy towards patients.” Dr. Le continued at Yale University, completing his gastroenterology and hepatology fellowship.

Beyond his professional activities, Dr. Le enjoys golf, running, snowboarding, and spending time with his wife, two sons and dog, while cheering for all of the Denver sports teams.

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Patient Care Philosophy

I approach my patients’ gastrointestinal ailments as a unique condition that warrants personalized treatments. I hope to educate patients on the cause(s) of their symptom(s). From there, we can best identify a workup and treatment plan that is grounded in both evidence-based medicine but also balanced by experience-based practice. I find that building a strong doctor-patient relationship is key in achieving therapeutic improvements for my patients.

Clinical Expertise

Inflammatory bowel disease (IBD)
Colon Cancer Screening
Celiac Disease
General gastroenterology


Tufts University, Bachelor of Science, Magna Cum Laude
Pembroke College, Oxford University, UK
University of Connecticut School of Medicine, MD
Yale-New Haven Hospital, Yale University, Residency and Internship, Internal Medicine
Yale-New Haven Hospital, Yale University, Fellowship, Gastroenterology and Hepatology

Board Certifications and Societies

Internal Medicine

Associations and Memberships

Crohn’s & Colitis Foundation
American College of Gastroenterology
American Gastroenterology Association
American Society for Gastrointestinal Endoscopy


Le PN, Greer JB, Oikonomou I, Schraut WH, Siegel CA, Cross RK, Holubar SD, Tinsley A, Koltun WA, Binion DG, Regueiro MD. IBD LIVE Case Series-Case 2: Previous Cancer in a Patient with Crohn’s Disease: Is It Appropriate to Use Biologics and Immunosuppressants for IBD Treatment? Inflamm Bowel Dis. 2015 Jun;21(6):1401-6

Dr. Le has a way of making you feel like you are his only patient. He takes the time to understand the issue, your concerns and explains his methodology of solving the issues. I highly recommend Dr. Le for the way he treats and interacts with his patients. You can feel confident that you are getting the best care. Thank you, Dr. Le!

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Dr. Le is the best doctor I’ve ever been to. He took the time to explain in-depth (and in basic kindergarten terms) why I had difficulty swallowing and gave me several options for treatment. I could tell he was looking out for what made most sense over the most expensive option right away, which I sincerely appreciate as a young adult. I’ve been trying to treat my issue for years and Dr. Le is the first to know exactly what is happening and have a treatment plan. Highly recommend him to anyone experiencing GI issues!

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Dr. Le is AMAZING! He has treated me with kindness and respect. He is so knowledgeable and helped me so much with my IBD in the short amount of time I have worked with him. I feel so lucky to have met him and gotten treatment from him. I would recommend him over and over! Thank you Dr. Le!!! You have given me my life back!

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South Denver GI Locations

Castle Rock Clinic

3911 Ambrosia St. #201 Castle Rock, CO 80109

Get Directions
P: 303.788.8888
F: 303.660.6607

Parker Clinic

9397 Crown Crest Blvd, Suite 221 Alpine Building Parker, CO 80138

Get Directions
P: 303.788.8888
F: 303.788.6452

Castle Rock Endoscopy Center

3911 Ambrosia St. #200 Castle Rock, CO 80109

Get Directions
P: 303.788.8888
F: 303-660-3996