Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Joseph Ahn, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1477812733

Joseph Ahn, MD practises Psychiatry in Boston, Massachusetts. Graduated from Creighton University School of Medicine in 2012, 14 years ago. Practices with The General Hospital Corporation, a 1,276-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
14
Trained at
Creighton University School of Medicine
Licensed in
MA
In the registry since
2012
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Boston, MA

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • One Medical Center Drive, Lebanon, NH 03756-1000 — (603) 650-5000

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 267629 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1477812733
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 8, 2012
Last updated in NPPESMarch 18, 2025
Certification dateMarch 18, 2025

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice The General Hospital Corporation — 1276 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients114
Services billed 510 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The General Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1276 clinicians in the practice; 12 are shown here.

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