Quick answers
- Which hospitals does Marney Gruber work at?
- Medicare's official clinician data lists Marney Gruber at 3 hospitals: Elmhurst Hospital Center, Lenox Hill Hospital and Suny/Stony Brook University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marney Gruber see patients?
- Medicare's clinician data lists 3 practice locations, including New York, NY, East Hampton, NY and Elmhurst, NY. Call before your visit to confirm the address.
- What is Marney Gruber's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Emergency Medicine.
- Does Marney Gruber accept Medicare assignment?
- Yes. Medicare's clinician data says Marney Gruber 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 Marney Gruber?
- (212) 434-2140, as listed in official Medicare / NPI Registry data.
- What is Marney Gruber's NPI number?
- 1083857601. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marney Gruber works
Medicare's Facility Affiliation Data lists Marney Gruber at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Elmhurst Hospital CenterElmhurst, NY · Acute Care Hospital · CCN 330128
- Lenox Hill HospitalNew York, NY · Acute Care Hospital · CCN 330119
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · CCN 330393
Practice locations
Addresses where Marney Gruber is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 E 77th StNew York, NY 10075 (212) 434‑2140
- 400 Pantigo PlEast Hampton, NY 11937 (631) 638‑3433
- 7901 BroadwayElmhurst, NY 11373 (718) 334‑4952
Group practices
Medicare enrollment lists Marney Gruber as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Icahn School of Medicine at Mount Sinai316 clinicians in the group
- Meeting House Lane Medical Practice PC124 clinicians in the group
Specialties
- Internal Medicineprimary
- Emergency Medicinealso
Other internal medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083857601 |
| 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