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

Michelle Ahn

Individual provider Hospitalist Physician · NPI 1124482062

Michelle Ahn is a Hospitalist in Boston, Massachusetts. Graduated from University of Pittsburgh School of Medicine in 2016, 10 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
10
Trained at
University of Pittsburgh School of Medicine
Licensed in
MA
In the registry since
2016
Specialties on file
2

Practice location Address checks out

55 Fruit St
Boston, MA 02114-2621
Phone: (617) 724-3842
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 55 Fruit St Unit Blake15, Boston, MA 02114-2621 — (617) 724-3842
  • 75 Francis St, Boston, MA 02115-6110 — (617) 732-5500
  • 1153 Centre St, Jamaica Plain, MA 02130-3446 — (617) 983-7000
  • 200 Lothrop St, Pittsburgh, PA 15213-2536 — (412) 692-4700

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 278451 (MA)
Hospitalist Physician Taxonomy 208M00000X · Licence 278451 (MA)

Record details

NPI number1124482062
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedApril 6, 2016
Last updated in NPPESJanuary 26, 2026
Certification dateJanuary 26, 2026
Mailing address55 Fruit St, Boston, MA 02114-2621

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Boston