Quick answers
- Does Roopinder K. Grewal accept Medicare assignment?
- Yes. Medicare's clinician data says Roopinder K. Grewal accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Roopinder K. Grewal see?
- In 2024, CMS data shows 400 Original Medicare patients and 1,541 services for Roopinder K. Grewal. This counts Original Medicare only and measures volume, not quality.
- What is Roopinder K. Grewal's NPI number?
- 1740327527. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Roopinder K. Grewal, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 400 |
|---|---|
| Services billed to Medicare | 1,541 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient problem focused exam of visual system (92012)348 services
- Established patient complete exam of visual system (92014)338 services
- Photography of the retina (92250)245 services
- Exam of visual field with extended testing (92083)185 services
- Exam of the internal drainage system of eye (92020)152 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes36%
- Ischemic heart disease28%
- Chronic kidney disease18%
Practice locations
Addresses where Roopinder K. Grewal is enrolled with Medicare (CMS data updated October 2, 2026).
- 2177 Oak Tree Rd, Suite 203Edison, NJ 08820 (908) 822‑0070
- 49 Veronica Ave, Suite 204Somerset, NJ 08873 (732) 565‑1500
Group practices
Medicare enrollment lists Roopinder K. Grewal as a member of this group (CMS data updated October 2, 2026).
- Edison Ophthalmology Associates L.L.C.5 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Edison
Clinicians with the same Medicare primary specialty in Edison, NJ — not a recommendation.
Other clinicians in Edison Ophthalmology Associates L.L.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740327527 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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