Browse Health
Internist, Cardiologist (heart)
30 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Margaret Brennan, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • She has special expertise in 8 areas:
  • Acute Coronary Syndrome (ACS)
  • Cardiovascular Disease
  • Echocardiography
  • Heart Block
  • Heart Failure
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Brennan graduated from Vanderbilt University, Columbia. She has 1 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. Brennan has 11 hospital affiliations:

  • Greater Baltimore Medical Center 
  • The Johns Hopkins Hospital 

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Additional Information
Dr. Margaret M Brennan MD is a female Internist, has 30 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. Margaret M. Brennan practice?
Dr. Margaret Brennan has 2 office locations.
Dr. Margaret Brennan practices Internal Medicine and Cardiovascular Disease near Towson, MD.
Additional practice locations include: Baltimore, MD.
See Towson Internists and Towson Cardiologists.