Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary S Ahn, MD

Individual provider Psychiatry Physician · NPI 1952429532

Mary S Ahn, MD is a Psychiatry Physician in Boston, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

50 Staniford St MGH Arms Program
Boston, MA 02114-2517
Phone: (617) 726-2241
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence 212339 (MA)
Psychiatry Physician Taxonomy 2084P0800X · Licence 212339 (MA)

Record details

NPI number1952429532
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 26, 2007
Last updated in NPPESDecember 4, 2007

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