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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).

Learn more about Dr. Mary O'Donnell:

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Specialties & Research

Dr. Mary O'Donnell, MD is board certified in Internal Medicine.

Education & Awards

Dr. O'Donnell graduated from Georgetown University, Washington.


Dr. O'Donnell has 1 hospital affiliations:

  • Dominion Hospital 

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Additional Information
Dr. Mary Beck O'Donnell MD is a female Internist, has 22 years of experience and practices in Internal Medicine.
Where does Dr. Mary B. O'Donnell practice?
Dr. Mary O'Donnell has 1 office location.
Dr. Mary O'Donnell practices Internal Medicine near Falls Church, VA.
See Falls Church Internists.