Quick answers
- Which hospitals does Ehsan A. Biswas work at?
- Medicare's official clinician data lists Ehsan A. Biswas at 2 hospitals: Holy Family Hospital and St Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ehsan A. Biswas see patients?
- Medicare's clinician data lists 3 practice locations, including Haverhill, MA, Nashua, NH and Methuen, MA. Call before your visit to confirm the address.
- What is Ehsan A. Biswas's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Ehsan A. Biswas accept Medicare assignment?
- Yes. Medicare's clinician data says Ehsan A. Biswas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Ehsan A. Biswas?
- (978) 374-2000, as listed in official Medicare / NPI Registry data.
- What is Ehsan A. Biswas's NPI number?
- 1255393815. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ehsan A. Biswas works
Medicare's Facility Affiliation Data lists Ehsan A. Biswas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holy Family HospitalMethuen, MA · Acute Care Hospital · CCN 220080
- St Joseph HospitalNashua, NH · Acute Care Hospital · CCN 300011
Practice locations
Addresses where Ehsan A. Biswas is enrolled with Medicare (CMS data updated 2026-10-02).
- 140 Lincoln AveHaverhill, MA 01830 (978) 374‑2000
- 172 Kinsley StNashua, NH 03060 (603) 880‑3408
- 70 E StMethuen, MA 01844 (978) 687‑0151
Group practices
Medicare enrollment lists Ehsan A. Biswas as a member of these groups (CMS data updated 2026-10-02).
- St. Joseph Hospital of Nashua NH273 clinicians in the group
- Community Medical Associates, Inc.157 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Haverhill
Clinicians with the same Medicare primary specialty in Haverhill, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255393815 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians