Quick answers
- Does Richard M. Gewanter accept Medicare assignment?
- Yes. Medicare's clinician data says Richard M. Gewanter 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 Richard M. Gewanter see?
- In 2024, CMS data shows 329 Original Medicare patients and 1,887 services for Richard M. Gewanter. This counts Original Medicare only and measures volume, not quality.
- What is Richard M. Gewanter's NPI number?
- 1992750582. 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 Richard M. Gewanter, 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 | 329 |
|---|---|
| Services billed to Medicare | 1,887 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)513 services
- Calculation of radiation therapy dose (77300)297 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)124 services
- Radiation treatment management, 5 treatment sessions (77427)121 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)116 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis49%
- Ischemic heart disease38%
- Diabetes34%
Practice locations
Addresses where Richard M. Gewanter is enrolled with Medicare (CMS data updated October 2, 2026).
- 1275 York AveNew York, NY 10065 (212) 639‑2000
Group practices
Medicare enrollment lists Richard M. Gewanter as a member of this group (CMS data updated October 2, 2026).
- Memorial Radiation Oncology Group92 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Other clinicians in Memorial Radiation Oncology Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1992750582 |
| 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