Quick answers
- Does Samuel M. Gelnick accept Medicare assignment?
- Yes. Medicare's clinician data says Samuel M. Gelnick accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Samuel M. Gelnick's NPI number?
- 1285196592. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Samuel M. Gelnick works
Medicare's Facility Affiliation Data lists Samuel M. Gelnick at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- New York Community Hospital of Brooklyn, Inc.Brooklyn, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330019
- St John's Episcopal Hospital at South ShoreFar Rockaway, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330395
Practice locations
Addresses where Samuel M. Gelnick is enrolled with Medicare (CMS data updated October 2, 2026).
- 260 E Middle Country Rd, Suite 201Smithtown, NY 11787 (631) 265‑8780
Group practices
Medicare enrollment lists Samuel M. Gelnick as a member of this group (CMS data updated October 2, 2026).
- Sight Medical Doctors PLLC115 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Smithtown
Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.
Other clinicians in Sight Medical Doctors PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285196592 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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