Quick answers
- Which hospitals does Benjamin T. Farmer work at?
- Medicare's official clinician data lists Benjamin T. Farmer at 2 hospitals: St Catherine of Siena Hospital and St Charles Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Benjamin T. Farmer see patients?
- Medicare's clinician data lists 1 practice location in Port Jefferson, NY. Call before your visit to confirm the address.
- What is Benjamin T. Farmer's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Benjamin T. Farmer accept Medicare assignment?
- Yes. Medicare's clinician data says Benjamin T. Farmer 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 Benjamin T. Farmer?
- (631) 474-6000, as listed in official Medicare / NPI Registry data.
- What is Benjamin T. Farmer's NPI number?
- 1346273661. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Benjamin T. Farmer works
Medicare's Facility Affiliation Data lists Benjamin T. Farmer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
- St Charles HospitalPort Jefferson, NY · Acute Care Hospital · CCN 330246
Practice locations
Addresses where Benjamin T. Farmer is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Belle Terre RdPort Jefferson, NY 11777 (631) 474‑6000
Group practices
Medicare enrollment lists Benjamin T. Farmer as a member of this group (CMS data updated 2026-10-02).
- Southwest Suffolk Medical PC199 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Port Jefferson
Clinicians with the same Medicare primary specialty in Port Jefferson, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346273661 |
| 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