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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).

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Our records indicate this doctor is retired.

Learn more about Dr. Alexander Leaf:

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Specialties & Research

Dr. Alexander Leaf, MD is board certified in Internal Medicine.


Education & Awards

Dr. Leaf graduated from University of Michigan Medical School, Ann Arbor.


Affiliations

Dr. Leaf has 1 hospital affiliations:

  • Massachusetts General Hospital 

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Additional Information
Dr. Alexander Leaf MD is a male Internist and practices in Internal Medicine.
Where does Dr. Alexander Leaf practice?
Dr. Alexander Leaf has 1 office location.
Dr. Alexander Leaf practices Internal Medicine near Boston, MA.
See Boston Internists.