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. Erin O'Fallon, MD, MPH is board certified in Internal Medicine and Geriatric Medicine.
More Specialties & Research
Education & Awards
Dr. O'Fallon graduated from University of Minnesota, Twin Cities, Minneapolis.More Education & Awards
Dr. O'Fallon has 3 hospital affiliations:
- Brigham and Women's Hospital
- Beth Israel Deaconess Medical Center
- Hebrew Rehabilitation Center for the Aged