Quick answers
- Which hospitals does Ravinder K. Grewal work at?
- Medicare's official clinician data lists Ravinder K. Grewal at 1 hospital: New York-Presbyterian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ravinder K. Grewal see patients?
- Medicare's clinician data lists 8 practice locations, including Uniondale, NY, New York, NY and Montvale, NJ. Call before your visit to confirm the address.
- What is Ravinder K. Grewal's specialty?
- Medicare lists Nuclear Medicine as the primary specialty.
- Does Ravinder K. Grewal accept Medicare assignment?
- Yes. Medicare's clinician data says Ravinder K. Grewal 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 Ravinder K. Grewal?
- (516) 559-1000, as listed in official Medicare / NPI Registry data.
- What is Ravinder K. Grewal's NPI number?
- 1184601320. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ravinder K. Grewal works
Medicare's Facility Affiliation Data lists Ravinder K. Grewal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · CCN 330101
Practice locations
Addresses where Ravinder K. Grewal is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1101 Hempstead TpkeUniondale, NY 11553 (516) 559‑1000
- 1275 York AveNew York, NY 10065 (212) 639‑2000
- 160 E 53rd StNew York, NY 10022 (212) 610‑0496
- 225 Summit AveMontvale, NJ 07645 (908) 542‑3336
- 300 E 66th StNew York, NY 10065 (646) 888‑5300
Group practices
Medicare enrollment lists Ravinder K. Grewal as a member of these groups (CMS data updated 2026-10-02).
- MSK Monmouth295 clinicians in the group
- MSK Bergen255 clinicians in the group
- MSKCC Radiology Group193 clinicians in the group
- Memorial Nuclear Medicine Group38 clinicians in the group
Specialties
- Nuclear Medicineprimary
Other nuclear medicine doctors in Uniondale
Clinicians with the same Medicare primary specialty in Uniondale, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184601320 |
| 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