About
Dr. John P. Mamana built his reputation across decades of clinical leadership, academic medicine, and preventive care. He completed his undergraduate studies at Harvard University, earned his medical degree at Boston University School of Medicine, and trained in internal medicine at the University of Pennsylvania. He served as Chairman of Internal Medicine at Inova Fairfax Hospital from 1977 to 1997 and as President of the Fairfax Hospital Medical Staff from 1990 to 1992. He held a faculty appointment as Clinical Associate Professor of Medicine at Georgetown University School of Medicine from 1987 to 2007. The American Hospital Association recognized his leadership through his role as Chairman of the Council of Physicians from 1979 to 1982.
Dr. Mamana holds board certification in internal medicine. He earned a Presidential Citation for his leadership in establishing the National Health Service Corps, expanding care to underserved communities. Washingtonian Magazine has named him among the top physicians and internists in the DC area across multiple years. He lectures internationally on preventive medicine and the early diagnosis of disease. His clinical focus spans executive health, preventive medicine, and the proactive management of chronic conditions.
Education & Training
Undergraduate
Harvard University
Medical School
Boston University School of Medicine
Residency
Internal Medicine, University of Pennsylvania
Certifications
Conditions Treated
Who is Dr. Mamana right for?
Dr. Mamana suits adults seeking thorough preventive care and executive health management. Patients managing chronic conditions benefit from his proactive clinical approach. Executives and professionals who travel benefit from his experience coordinating complex care across distances. His decades of clinical leadership make him a strong fit for patients who value deep medical expertise.
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Frequently Asked Questions
Dr. Mamana specializes in executive health, internal medicine, and preventive medicine. His clinical focus includes the proactive management of chronic conditions and early disease diagnosis. He lectures internationally on preventive medicine and brings decades of academic and clinical experience to his patients.
Yes, Dr. Mamana holds board certification in internal medicine. He earned his medical degree at Boston University School of Medicine and completed his residency in internal medicine at the University of Pennsylvania.
Dr. Mamana studied as an undergraduate at Harvard University. He earned his medical degree at Boston University School of Medicine and completed his residency in internal medicine at the University of Pennsylvania.
Yes, Dr. Mamana has received several notable honors. Washingtonian Magazine has named him among the top physicians and internists in the DC area across multiple years. He also earned a Presidential Citation for his leadership in establishing the National Health Service Corps, which expanded care to underserved communities.
Dr. Mamana served as Chairman of Internal Medicine at Inova Fairfax Hospital from 1977 to 1997. He served as President of the Fairfax Hospital Medical Staff from 1990 to 1992. He also chaired the American Hospital Association's Council of Physicians from 1979 to 1982. From 1987 to 2007, he held a faculty appointment as Clinical Associate Professor of Medicine at Georgetown University School of Medicine.
Yes, Dr. Mamana's clinical focus includes the proactive management of chronic conditions. He combines internal medicine expertise with a strong preventive approach. His goal is to identify and address health risks early, before they develop into more serious problems.
Yes, Dr. Mamana offers comprehensive annual executive physicals. Each physical includes a personalized Action Plan and proactive scheduling reminders for follow-up tests. This structured approach helps patients stay on top of their health year-round.
Doctor profile last updated March 21, 2026