Quick answers
- Which hospitals does Mark Nyitray work at?
- Medicare's official clinician data lists Mark Nyitray at 2 hospitals: North Shore University Hospital and Plainview Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Nyitray see patients?
- Medicare's clinician data lists 5 practice locations, including Richmond Hill, NY, Syosset, NY and Jericho, NY. Call before your visit to confirm the address.
- What is Mark Nyitray's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Mark Nyitray accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Nyitray 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 Mark Nyitray?
- (516) 750-8000, as listed in official Medicare / NPI Registry data.
- What is Mark Nyitray's NPI number?
- 1467457689. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Nyitray works
Medicare's Facility Affiliation Data lists Mark Nyitray at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Plainview HospitalPlainview, NY · Acute Care Hospital · CCN 330331
Practice locations
Addresses where Mark Nyitray is enrolled with Medicare (CMS data updated 2026-10-02).
- 11014 Jamaica AveRichmond Hill, NY 11418 (516) 750‑8000
- 175 Jericho Tpke, Suite 200Syosset, NY 11791 (516) 682‑0700
- 366 N Broadway, Suite Lw2Jericho, NY 11753 (516) 750‑8000
- 380 S BroadwayHicksville, NY 11801 (516) 750‑8000
- 57 Meeting LnHicksville, NY 11801 (516) 796‑9595
Group practices
Medicare enrollment lists Mark Nyitray as a member of this group (CMS data updated 2026-10-02).
- Digestive Disease Care, PC40 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Richmond Hill
Clinicians with the same Medicare primary specialty in Richmond Hill, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467457689 |
| 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