Quick answers
- Does Steven C. Greenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Steven C. Greenberg 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 Steven C. Greenberg see?
- In 2024, CMS data shows 1,163 Original Medicare patients and 2,559 services for Steven C. Greenberg. This counts Original Medicare only and measures volume, not quality.
- What is Steven C. Greenberg's NPI number?
- 1538153705. 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 Steven C. Greenberg, 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 | 1,163 |
|---|---|
| Services billed to Medicare | 2,559 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient complete exam of visual system (92014)1,067 services
- Established patient problem focused exam of visual system (92012)542 services
- Imaging of retina (92134)319 services
- Imaging of optic nerve (92133)196 services
- Exam of visual field with extended testing (92083)171 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 cholesterol75%
- High blood pressure66%
- Arthritis39%
- Ischemic heart disease25%
- Diabetes21%
- Anxiety21%
Practice locations
Addresses where Steven C. Greenberg is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Theall RdRye, NY 10580 (914) 848‑8888
- 210 Westchester AveWhite Plains, NY 10604 (914) 682‑0700
Group practices
Medicare enrollment lists Steven C. Greenberg as a member of this group (CMS data updated October 2, 2026).
- Westchester Medical Group, P.C415 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Westchester Medical Group, P.C
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Connecticut School Of Medicine |
| Graduation year | 1982 (44 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538153705 |
| 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