About
Dr. David Leon has practiced internal medicine in the Lakewood and Wheat Ridge, Colorado areas for thirty years. He earned his Bachelor of Science in Biology from Creighton University in Omaha before completing his Doctorate of Medicine at the University of Illinois College of Medicine in Chicago in 1988. He then completed both his internship and internal medicine residency at the University of Minnesota, finishing in 1991.
Dr. Leon holds board certification as a Diplomate of the American Board of Internal Medicine. He also carries National Committee for Quality Assurance certifications in Diabetes Management and Cardiovascular Disease Management. The American College of Physicians recognizes him as a Fellow. His honors include Best Doctors in America recognition from 2007 through 2021 and again from 2023 through 2025, America's Best Physicians in 2021, and Colorado Top Doctors in 2023. He has served on the Credentials Committee at Lutheran Hospital since 2006 and served as President of the Colorado Preferred Provider Organization from 2009 to 2014. For 25 years, he organized and managed the First Aid Tent at the Step Up for Down Syndrome Annual Walk. Dr. Leon is passionate about preventive care and the long-term management of chronic illness.
Education & Training
Undergraduate
Creighton University, Omaha, NE - Bachelor of Science, Biology (1983)
Medical School
University of Illinois College of Medicine, Chicago, IL - Doctorate of Medicine (1988)
Residency
University of Minnesota Hospitals and Clinics, Minneapolis, MN - Internal Medicine (1989-1991)
Additional Training
Internship: University of Minnesota, Minneapolis, MN (1988-1989)
Certifications
Conditions Treated
Who is Dr. Leon right for?
Dr. Leon is a strong fit for adults seeking a long-term relationship with an experienced internist. Patients managing diabetes, cardiovascular disease, or other chronic conditions benefit from his focused expertise. His NCQA certifications in both areas reflect a deep clinical commitment. Adults who value thorough preventive screenings and a personalized wellness plan will find his approach well-suited to their goals.
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Frequently Asked Questions
Dr. Leon specializes in internal medicine and preventive care. He focuses on the long-term management of chronic conditions, including diabetes and cardiovascular disease. He also cares for patients with acute illnesses and guides members through comprehensive preventive screenings each year.
Yes, Dr. Leon holds board certification as a Diplomate of the American Board of Internal Medicine. He also carries National Committee for Quality Assurance certifications in Diabetes Management and Cardiovascular Disease Management. The American College of Physicians recognizes him as a Fellow.
Dr. Leon earned his medical degree from the University of Illinois College of Medicine in Chicago in 1988. He completed both his internship and his internal medicine residency at the University of Minnesota, finishing in 1991. His undergraduate degree in Biology came from Creighton University in Omaha.
Dr. Leon has practiced internal medicine in the Lakewood and Wheat Ridge, Colorado areas for thirty years. That depth of experience means he brings substantial clinical perspective to managing both straightforward and complex cases.
Yes, Dr. Leon has received several notable honors. He earned Best Doctors in America recognition from 2007 through 2021 and again from 2023 through 2025. He also received America's Best Physicians recognition in 2021 and Colorado Top Doctors in 2023.
Dr. Leon has served on the Credentials Committee at Lutheran Hospital since 2006. He also served as President of the Colorado Preferred Provider Organization from 2009 to 2014. Outside of clinical practice, he organized and managed the First Aid Tent at the Step Up for Down Syndrome Annual Walk for 25 years.
Yes, Dr. Leon provides 24/7 physician access to his members. Patients can reach him directly by phone after hours and on weekends. This level of access ensures members can address urgent questions without waiting for the next business day.
Dr. Leon is passionate about preventive care and the early detection of health risks. Each year, members receive the MDVIP Wellness Program, which includes advanced health screenings and diagnostic tests. Dr. Leon uses those results to build a personalized wellness plan tailored to each patient.
Doctor profile last updated March 21, 2026