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

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
Mailing address50 Staniford St, Mgh Arms Program, Boston, MA 02114-2517

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