John-Marc Austin, M.D.
Psychiatry Physician · Londonderry, NH
John-Marc Austin, M.D. is a psychiatry physician with a practice address in Londonderry, New Hampshire, and NPI 1558936369, issued on May 24, 2021. Check the license (New Hampshire 24426, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John-Marc Austin
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 24426 NH
Self-reported in NPPES; status is on the state search - Practice location
- 77 Gilcreast RD Ste 3000, Londonderry, NH 03053
- Phone
- (603) 883-0005
- Enumerated
- May 24, 2021
- Record last updated
- May 4, 2026
- Fax
- (603) 883-0007
- Medicare enrollment
- Enrolled (PECOS I20241122002159); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2021
- Entity
- Type 1 · individual
Also registered at 77 Gilcreast RD Ste 3000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heather Andonucci-Hill, PSYDClinical Psychologist1285959577
- Carol Bates, LCMHCMental Health Counselor1720173107
- Claudia FordinStudent in an Organized Health Care Education/Training Program1386447480
- Brigitte Hristea, MDPsychiatry Physician1518928613
- Barry Lewis, MAMental Health Counselor1841467073
- Natalie Locke, LCMHCMental Health Counselor1073331096
Verify John-Marc Austin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 24426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- State OF New HampshireConcord, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Psychiatry Physician providers in New Hampshire
There are 263 psychiatry physician records in New Hampshire.
Other psychiatry physician records in New Hampshire
- Susan Abraham, M.D.Keene, NH1629163159
- Linda Addante, M.D.Meriden, NH1710266622
- Thor Agustsson, DOManchester, NH1427219948
- Sarah Akerman, M.D.Lebanon, NH1619140423
- Jennifer Albert, M.D.Nashua, NH1548495104
- Ralph Albertini, M.D.Hanover, NH1144277872
- Gregory Alberto, MD, PHDConcord, NH1194388041
- Robert Allister, M.D.Rochester, NH1598804411
- Rebecca Andrew, M.D.Concord, NH1265486088
- Mimi Armellino, DOManchester, NH1497837165
Common questions
What is John-Marc Austin, M.D.'s NPI number?
John-Marc Austin, M.D.'s National Provider Identifier (NPI) is 1558936369, issued on May 24, 2021. An NPI identifies a provider in billing; it is not a license.
Where is John-Marc Austin, M.D. located?
The NPPES record lists a practice address at 77 Gilcreast RD Ste 3000, Londonderry, NH, 03053. Phone: (603) 883-0005. Providers update this record themselves, so call before visiting.
How can I verify John-Marc Austin, M.D.'s license?
NPPES lists New Hampshire license number 24426, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.