NPPES file of Aug 9, 2026

Ehsan A. Biswas, M.D.

Psychiatry Physician · Manchester, NH

Ehsan A. Biswas, M.D. is a psychiatry physician with a practice address in Manchester, New Hampshire, and NPI 1255393815, issued on Apr 6, 2006. Check the license (New Hampshire 11523, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255393815
Name
Ehsan A. Biswas
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
11523 NH
Self-reported in NPPES; status is on the state search
Practice location
718 Smyth RD, Manchester, NH 03104
Phone
(603) 624-4366
Enumerated
Apr 6, 2006
Record last updated
Jul 13, 2026
Fax
(603) 629-3244
Medicare enrollment
Enrolled (PECOS I20040414000999); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychiatry physician records → All 263 in New Hampshire → Look up another NPI →

Also registered at 718 Smyth RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mary Aboozia, NPPrimary Care Nurse Practitioner1356305502
  2. John Acker, LICSWClinical Social Worker1851442040
  3. Yemi AlejoPsychiatric/Mental Health Nurse Practitioner1396243457
  4. Beth AlvesClinical Social Worker1952705311
  5. Colleen Amerena, R.N.Registered Nurse1255746442
  6. Joanne Anctil, ARNPGerontology Nurse Practitioner1265499834

Verify Ehsan A. Biswas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 11523    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 2 group practices

  1. Community Medical Associates, Inc.Methuen, MA
  2. St. Joseph Hospital OF Nashua NHNashua, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ehsan A. Biswas among 263 psychiatry physician records in New Hampshire

Ehsan A. Biswas, 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 54% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated1992 · median 2003 among the 136 with a school on file
  • Record last updated2026 · 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).

Psychiatry Physician providers in New Hampshire

There are 263 psychiatry physician records in New Hampshire.

All 263 in New Hampshire → Every provider in Manchester → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Mimi Armellino, DOManchester, NH 031041497837165
  2. Eric Chapman, M.D.Manchester, NH 031041225122492
  3. Albert Drukteinis, MDManchester, NH 031041265559157
  4. Rose Ehret, MDManchester, NH 031041962429837
  5. Robert Feder, M.D.Manchester, NH 031041063434439
  6. Daniel Potenza, M.D.Manchester, NH 031041669649174
  7. Michael Spatcher, M.D.Manchester, NH 031041043674054
  8. Claire Tenny, M.D.Manchester, NH 031041265676795

Common questions

What is Ehsan A. Biswas, M.D.'s NPI number?

Ehsan A. Biswas, M.D.'s National Provider Identifier (NPI) is 1255393815, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ehsan A. Biswas, M.D. located?

The NPPES record lists a practice address at 718 Smyth RD, Manchester, NH, 03104. Phone: (603) 624-4366. Providers update this record themselves, so call before visiting.

How can I verify Ehsan A. Biswas, M.D.'s license?

NPPES lists New Hampshire license number 11523, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.