Quick answers
- Which hospitals does Jeffrey A. Hamilton work at?
- Medicare's official clinician data lists Jeffrey A. Hamilton at 5 hospitals: Good Samaritan Hospital Medical Center, John T Mather Memorial Hospital of Port Jefferson, Mercy Medical Center, St Catherine of Siena Hospital and St Francis Hospital - The Heart Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey A. Hamilton see patients?
- Medicare's clinician data lists 5 practice locations, including Roslyn, NY, West Islip, NY and Rockville Center, NY. Call before your visit to confirm the address.
- What is Jeffrey A. Hamilton's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Jeffrey A. Hamilton accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey A. Hamilton 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 Jeffrey A. Hamilton?
- (516) 562-6410, as listed in official Medicare / NPI Registry data.
- What is Jeffrey A. Hamilton's NPI number?
- 1982696548. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jeffrey A. Hamilton works
Medicare's Facility Affiliation Data lists Jeffrey A. Hamilton at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · CCN 330185
- Mercy Medical CenterRockville Centre, NY · Acute Care Hospital · CCN 330259
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
Practice locations
Addresses where Jeffrey A. Hamilton is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Port Washington Blvd, St Francis HospitalRoslyn, NY 11576 (516) 562‑6410
- 1000 Montauk HwyWest Islip, NY 11795 (631) 376‑3990
- 1000 N Village Ave, Mercy Medical CenterRockville Center, NY 11570 (516) 705‑2097
- 4295 Hempstead TpkeBethpage, NY 11714 (516) 520‑2374
- 50 Route 25aSmithtown, NY 11787 (631) 862‑3064
Group practices
Medicare enrollment lists Jeffrey A. Hamilton as a member of this group (CMS data updated 2026-10-02).
- Pathology and Laboratory Consultants of Long Island PLLC20 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Roslyn
Clinicians with the same Medicare primary specialty in Roslyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982696548 |
| 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