Quick answers
- Which hospitals does Marc J. Yunis work at?
- Medicare's official clinician data lists Marc J. Yunis at 2 hospitals: North Shore University Hospital and NYU Langone Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marc J. Yunis see patients?
- Medicare's clinician data lists 3 practice locations, including New York, NY, Jamaica, NY and Rego Park, NY. Call before your visit to confirm the address.
- What is Marc J. Yunis's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Marc J. Yunis accept Medicare assignment?
- Yes. Medicare's clinician data says Marc J. Yunis 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 J. Yunis?
- (212) 263-9700, as listed in official Medicare / NPI Registry data.
- What is Marc J. Yunis's NPI number?
- 1790728434. 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 J. Yunis works
Medicare's Facility Affiliation Data lists Marc J. Yunis 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
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · CCN 330214
Practice locations
Addresses where Marc J. Yunis is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 BroadwayNew York, NY 10006 (212) 263‑9700
- 13303 Jamaica AveJamaica, NY 11418 (718) 206‑6923
- 9785 Queens BlvdRego Park, NY 11374 (718) 261‑9100
Group practices
Medicare enrollment lists Marc J. Yunis as a member of this group (CMS data updated 2026-10-02).
- New York University6,134 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790728434 |
| 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