Samantha Gnanasegaram, M.D.
Psychiatry Physician · Concord, NH
Samantha Gnanasegaram, M.D. is a psychiatry physician with a practice address in Concord, New Hampshire, and NPI 1023440252, issued on Jul 30, 2013. Check the license (New Hampshire 18110, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Samantha Gnanasegaram
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 18110 NH
Self-reported in NPPES; status is on the state search - Practice location
- 36 Clinton St, Concord, NH 03301
- Phone
- (603) 271-5485
- Enumerated
- Jul 30, 2013
- Record last updated
- Jul 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 263 in New Hampshire → Look up another NPI →
Also registered at 36 Clinton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Alberto, MD, PHDPsychiatry Physician1194388041
- Rebecca Andrew, M.D.Psychiatry Physician1265486088
- R. Barrnett, M.D.Psychiatry Physician1093734519
- Lori BoeligOccupational Therapist1700935350
- Joanne BrewerPsychiatric/Mental Health Nurse Practitioner1841025061
- Elizabeth Carson-Fitzgerald, ARNPPsychiatric/Mental Health Nurse Practitioner1538231030
Verify Samantha Gnanasegaram in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 18110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
36 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Dextroamphetamine-Amphet Er13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Samantha Gnanasegaram among 263 psychiatry physician records in New Hampshire
Samantha Gnanasegaram, M.D. is one of 263 psychiatry physician records with a practice address in New Hampshire. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 74% of them.
- NPI issued2013 · 74% of these records are older, 21% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 psychiatry physician records list a practice address in Concord
They are 31 of the 3,103 NPPES records with a practice address in Concord, and 263 psychiatry physician records in New Hampshire.
All 263 in New Hampshire → Every provider in Concord → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Rebecca Andrew, M.D.Concord, NH 033011265486088
- R. Barrnett, M.D.Concord, NH 033011093734519
- David Bonacci, MDConcord, NH 033011295750966
- Paul Brown, MDConcord, NH 033011750323739
- David Coursin, MDConcord, NH 033011912926239
- Alexander De Nesnera, M.D.Concord, NH 033011457300030
- Peter Delfausse, M.D.Concord, NH 033011891744272
- Osvaldo Evangelista, MDConcord, NH 033011780653501
Common questions
What is Samantha Gnanasegaram, M.D.'s NPI number?
Samantha Gnanasegaram, M.D.'s National Provider Identifier (NPI) is 1023440252, issued on Jul 30, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Gnanasegaram, M.D. located?
The NPPES record lists a practice address at 36 Clinton St, Concord, NH, 03301. Phone: (603) 271-5485. Providers update this record themselves, so call before visiting.
How can I verify Samantha Gnanasegaram, M.D.'s license?
NPPES lists New Hampshire license number 18110, 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.
How much does Samantha Gnanasegaram, M.D. prescribe under Medicare Part D?
In 2024, Samantha Gnanasegaram, M.D. had 36 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
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.