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

John-Marc Austin, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1558936369

John-Marc Austin, MD is a Psychiatry in Londonderry, New Hampshire. Graduated from University of Massachusetts Medical School in 2021, 5 years ago. Practices with State of New Hampshire, a 77-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
5
Trained at
University of Massachusetts Medical School
Licensed in
NH
In the registry since
2021
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

77 Gilcreast Rd Ste 3000
Londonderry, NH 03053-3563
Phone: (603) 883-0005
Fax: (603) 883-0007
Show map & directions

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

Additional practice locations (3)

  • 36 Clinton St, Concord, NH 03301-2359 — (603) 271-5300
  • 207 S Main St, Newmarket, NH 03857-1843 — (603) 519-7264
  • 333 Borthwick Ave Ste 100, Portsmouth, NH 03801-4198 — (413) 314-1778

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 24426 (NH)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1558936369
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2021
Last updated in NPPESMay 4, 2026
Certification dateMay 4, 2026

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2021 (5 years in practice)
Group practice State Of New Hampshire — 77 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Londonderry