About
James Biemer, MD brings more than three decades of internal medicine experience to his patients in Portland, Oregon. C. and then pursued fellowship training in research and teaching at the Portland Veterans Affairs Medical Center and Oregon Health Science University. He holds board certification in internal medicine.
Dr. Biemer ran an independent practice based almost entirely at St. Vincent Medical Center beginning in 2008. He served as the hospital's Internal Medicine Section Chief and President of the Medical Staff. He also spent six years on Providence's Oregon Community Ministry board, overseeing care quality across eight Oregon hospitals. A long-time member of the American Academy of Anti-Aging Medicine, Dr. Biemer centers his clinical thinking on longevity and functional medicine. His approach draws on the work of Dale Bredesen, Peter Attia, Mark Hyman, and David Sinclair. A former triathlete and distance competitor, he has a particular passion for helping aging athletes preserve performance and function.
Education & Training
Residency
Internal Medicine, Georgetown University, Washington, D.C.
Fellowship
Research and Teaching, Portland Veterans Affairs Medical Center and Oregon Health Science University
Additional Training
Member, American Academy of Anti-Aging Medicine
Certifications
Conditions Treated
Who is Dr. Biemer right for?
Dr. Biemer works well with adults who want a proactive, root-cause approach to managing chronic conditions. Patients dealing with diabetes, hypertension, high cholesterol, or cardiovascular risk benefit from his preventive focus. Aging athletes who want to preserve strength and function will find his background especially relevant. He also serves patients interested in longevity medicine and the science of healthy aging.
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Frequently Asked Questions
Dr. Biemer treats a broad range of internal medicine conditions, including diabetes, hypertension, high cholesterol, and cardiovascular disease. He also works with patients managing obesity and sports injuries. His functional medicine lens means he looks for root causes rather than simply managing symptoms.
Dr. Biemer takes a proactive, preventive approach to aging informed by functional medicine. He draws on the research of Peter Attia, Dale Bredesen, Mark Hyman, and David Sinclair. His goal is to help patients preserve function and reduce disease risk as they grow older.
Yes. Dr. Biemer is a former triathlete and distance competitor with a long-standing interest in aging athletes. He helps active patients maintain performance, reduce injury risk, and stay in the game longer. He may recommend integrative approaches such as resilience training, acupuncture, or massage therapy alongside traditional medicine.
C. He then completed a fellowship in research and teaching at the Portland Veterans Affairs Medical Center and Oregon Health Science University.
Yes. Dr. Biemer holds board certification in internal medicine.
Yes. Dr. Biemer served as St. Vincent Medical Center's Internal Medicine Section Chief and as President of the Medical Staff. He also spent six years on Providence's Oregon Community Ministry board, which oversees care quality at eight Oregon hospitals.
Dr. Biemer has practiced in the Portland area for over three decades. He started his independent practice in 2008 and worked almost exclusively at St. Vincent Medical Center throughout that time.
Doctor profile last updated March 22, 2026