Dr. John Frank Marra, MD

Dr. John Frank Marra, MD

Dr. John Frank Marra, MD

Languages: English
Fax: (443) 444-4606

Contact this Provider:

  • Cardiology
Conditions I Treat
  • abnormal coronary angiography
  • abnormal electrocardiogram (ekg)
  • abnormal stress test
  • acute bacterial endocarditis
  • acute decompensated heart failure
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Procedures I Perform
  • abdominal duplex ultrasound
  • adenosine stress test
  • advanced lipid blood tests
  • anticoagulation
  • aortic valve surgery
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About the Provider

Dr. John F. Marra, MD, is a clinical cardiologist, Director of the Observation Unit, and Office Medical Director of MedStar Medical Group at Good Samaritan Hospital in Baltimore, Maryland. He is also an Assistant in Medicine  at John Hopkins Medical School and previously served for many years as Director of Cardiac Rehabilitation at MedStar Good Samaritan Hospital. Dr. Marra has 30 years of experience in the diagnosis and treatment of a comprehensive range of adult cardiovascular conditions.

In his treatment approach, Dr. Marra focuses on achieving an accurate diagnosis and delivering proper and prompt individual therapy, while emphasizing the importance of discussion and communication with his patients. Dr Marra has special expertise in coronary stents and bypass surgery management; he has performed over 3,000 cardiac catheterizations in patients with coronary artery disease and managed these patients following the procedure. He also practices preventive cardiology in order to prevent future cardiac events and improve quality of life for his patients.

Dr. Marra has special interests in hypertension, cholesterol management, heart failure, coronary heart disease, and preventive cardiology, and has given hundreds of peer lectures on these topics.

After attending medical school at the State University of New York at Buffalo, Dr. Marra went on to complete his residency in internal medicine, followed by a fellowship in cardiology, at George Washington University Hospital. While there, he became a Special Research Fellow in Cardiology, receiving an additional year of comprehensive cardiovascular training that included teaching cardiology fellows and resident physicians and performing cardiac procedures such as cardiac catheterization and echocardiography. Dr. Marra worked for many years as an Associate at Good Samaritan Hospital and later joined the MedStar Medical Group.

Dr. Marra was awarded the Special Research Fellowship at George Washington University Hospital and has received the Golden Apple Award for excellence in medical teaching at the University of Maryland Hospital Midtown Campus. He has also been honored as a Fellow of the American College of Cardiology (FACC).

Philosophy of Care

“My therapeutic goals for patients are holistic, recognizing their general well-being and family situation as significant factors in their health. Having worked as a practicing clinical cardiologist for more than 30 years, I have learned that a patient’s cardiac disorder is only one part of their health, and that other components which support and diminish their health need to be considered, such as their home situation and habits. As a physician, it is rewarding to get to know my patients in greater depth, with consideration of these factors. My goal is to engage with each patient -- every patient will sit with me in my office for discussion, rather than only being seen in an examination room.”


  • Fellowship Program: George Washington University Hospital (1980)
  • Residency Program: MedStar Georgetown University Hospital (1977)
  • Residency Program: Washington DC VA Medical Center (1977)
  • Residency Program: Department of Veterans Affairs (1977)
  • Residency Program: George Washington University Hospital (1976)
  • Internship Program: George Washington University Hospital (1975)
  • Medical School: State University of New York at Buffalo School of Medicine (1974)
  • Medical School: State University of New York at Buffalo (1974)
  • Board Certification: American Board of Internal Medicine, Cardiovascular Disease
  • Board Certification: American Board of Internal Medicine, Internal Medicine
    MedStar Health Providers participate with a wide range of health insurance products. We accept self-pay patients and the insurances plans listed below. This list is not comprehensive, it is updated periodically and is subject to change. If you do not see your health insurance plan or product listed, or if you have any questions regarding MedStar Health’s participation with your health plan, please contact your health plan to verify participation with our providers.

    Since the MedStar Health providers span the District of Columbia, Maryland and Virginia regions, our participation with DC, Maryland and Virginia Medical Assistance programs varies by provider group. Please contact your MedStar Physician’s Office to assist with verifying Medical Assistance participation. If you are enrolled in a Medicaid Managed Care Organization, please contact your Medicaid health plan to verify participation.

Practice Locations
  • 5601 Loch Raven Boulevard
    Russell Morgan Bldg
    Russell Morgan Bldg Ste 206
    Baltimore, MD 21239
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    Phone: (443) 444-5607
    Fax: (443) 444-4606

Member of Medical Staff