Thomas J. McNamara, MD

Thomas J. McNamara, MD

Contact Information


  • Monday9:00am-4:15pm
  • Tuesday1:30pm-4:15pm
  • Wednesday8:30am-4:15pm
  • Thursday9:00am-4:15pm
  • Friday9:00am-4:15pm

About our Doctor

My goal as your private doctor is to partner with you and to create a personalized healthcare plan to effectively treat your current health problems and to prevent new ones. I understand and celebrate that internal medicine patients have specific medical needs and desire a unique path to better health. I will work with you each step of the way to assist you with making informed decisions toward achieving your goals – whether it is running your first marathon, improving your nutrition or reducing your use of medication.

With nearly 25 years of practicing medicine in the community, I have relationships with many specialists to help with you and your unique needs. I may be an internal medicine doctor, but I also have interests in cardiovascular disease, diabetes, hypertension and preventive medicine. I have gone from a physician that was trained to cure your illness and tackle your diseases to one who recognizes that true health comes from preventing disease from developing.

The Catholic University of America, Washington, DC

Bachelor of Arts, Biology 1975
Sigma Xi Honor Society

Medical School
Georgetown University School of Medicine, Washington, DC
Doctorate of Medicine 1981

University of Cincinnati, Cincinnati, OH

University of Cincinnati, Cincinnati, OH
Internal Medicine 1982-1984

Board Certification
American Board of Internal Medicine
National Board of Medical Examiners

Academic Positions
Associate Professor, Georgetown University School of Medicine, Faculty in Clinical Medicine 1984-present

Honors and Awards
Top Doctor, Washingtonian Magazine 1998-present
Top Doctor, Checkbook Magazine 2010-present

© - Bethesda Medical Associates. All Rights Reserved.


Due to construction odors, Bethesda Medical Associate elected to close our office. Our phones will still be monitored by our technicians. However, our office will be closed for all appointments, classes, and other business. We expect to be able to reopen Thursday, February 1, 2024 at our normal time of 8:00 am. We do apologize for any inconvenience.