Quick answers
- Which hospitals does Moses Williams work at?
- Medicare's official clinician data lists Moses Williams at 5 hospitals: Good Samaritan Hospital Medical Center, Mercy Medical Center, St Catherine of Siena Hospital, St Charles Hospital and St Francis Hospital - The Heart Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Moses Williams see patients?
- Medicare's clinician data lists 7 practice locations, including West Islip, NY, Rockville Center, NY and Port Jefferson, NY. Call before your visit to confirm the address.
- What is Moses Williams's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Moses Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Moses Williams 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 Moses Williams?
- (718) 223-4685, as listed in official Medicare / NPI Registry data.
- What is Moses Williams's NPI number?
- 1881622025. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Moses Williams works
Medicare's Facility Affiliation Data lists Moses Williams 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
- Mercy Medical CenterRockville Centre, NY · Acute Care Hospital · CCN 330259
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
- St Charles HospitalPort Jefferson, NY · Acute Care Hospital · CCN 330246
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
Practice locations
Addresses where Moses Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1000 Montauk HwyWest Islip, NY 11795 (718) 223‑4685
- 1000 N Village AveRockville Center, NY 11570 (718) 223‑4685
- 200 Belle Terre RdPort Jefferson, NY 11777 (718) 223‑4685
- 50 Route 25aSmithtown, NY 11787 (718) 223‑4685
- 500 Commack RdCommack, NY 11725 (718) 223‑4685
Group practices
Medicare enrollment lists Moses Williams as a member of these groups (CMS data updated 2026-10-02).
- Empire State Radiology P C268 clinicians in the group
- St Francis Cardiac Prevention Services PC62 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in West Islip
Clinicians with the same Medicare primary specialty in West Islip, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881622025 |
| 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