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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. Margaret Shaffer:

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Education & Awards

Dr. Shaffer graduated from George Washington University.


Dr. Shaffer has 1 hospital affiliations:

  • Sibley Memorial Hospital 

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Additional Information
Dr. Margaret M Shaffer MD is a female Pathologist and practices in Pathology and Anatomic Pathology & Clinical Pathology.
Where does Dr. Margaret M. Shaffer practice?
Dr. Margaret Shaffer has 1 office location.
Dr. Margaret Shaffer practices Pathology and Anatomic Pathology & Clinical Pathology near Washington, DC.
See Washington Pathologists.