Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Scott Martin-Joy, MD

Individual provider Psychiatry Physician · NPI 1023169141

Dr. John Scott Martin-Joy, MD is a Psychiatry in Cambridge, Massachusetts. Graduated from University of Massachusetts Medical School in 1998, 28 years ago. Practices with Mount Auburn Hospital, an 8-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
28
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2007
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

875 Massachusetts Ave Ste 22
Cambridge, MA 02139-3070
Phone: (617) 417-6902
Fax: (315) 821-8567
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 210262 (MA)

Record details

NPI number1023169141
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 16, 2007
Last updated in NPPESOctober 29, 2025
Certification dateOctober 29, 2025

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 1998 (28 years in practice)
Group practice Mount Auburn Hospital — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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