Quick answers
- Which hospitals does Marc Sher work at?
- Medicare's official clinician data lists Marc Sher at 3 hospitals: Good Samaritan Hospital Medical Center, North Shore University Hospital and St Francis Hospital - The Heart Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marc Sher see patients?
- Medicare's clinician data lists 3 practice locations, including Roslyn, NY, Rockville Center, NY and New Hyde Park, NY. Call before your visit to confirm the address.
- What is Marc Sher's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Marc Sher accept Medicare assignment?
- Yes. Medicare's clinician data says Marc Sher 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 Marc Sher?
- (516) 327-0001, as listed in official Medicare / NPI Registry data.
- What is Marc Sher's NPI number?
- 1376682443. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marc Sher works
Medicare's Facility Affiliation Data lists Marc Sher 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
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
Practice locations
Addresses where Marc Sher is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Port Washington BlvdRoslyn, NY 11576
- 1000 N Village AveRockville Center, NY 11570
- 3003 New Hyde Park Rd, Suite 411New Hyde Park, NY 11042 (516) 327‑0001
Group practices
Medicare enrollment lists Marc Sher as a member of this group (CMS data updated 2026-10-02).
- CHS Physician Partners PC743 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Roslyn
Clinicians with the same Medicare primary specialty in Roslyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376682443 |
| 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