Quick answers
- Does Marvin H. Wertentheil accept Medicare assignment?
- Yes. Medicare's clinician data says Marvin H. Wertentheil 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 Marvin H. Wertentheil see?
- In 2024, CMS data shows 1,035 Original Medicare patients and 2,059 services for Marvin H. Wertentheil. This counts Original Medicare only and measures volume, not quality.
- What is Marvin H. Wertentheil's NPI number?
- 1457370835. 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 Marvin H. Wertentheil, 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 | 1,035 |
|---|---|
| Services billed to Medicare | 2,059 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient problem focused exam of visual system (92012)1,036 services
- Established patient complete exam of visual system (92014)436 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)365 services
- Extended exam of the back part of the eye with retinal drawing (92201)119 services
- New patient complete exam of visual system (92004)35 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%
- Diabetes75%
- Ischemic heart disease53%
- Arthritis52%
- Alzheimer's disease or dementia52%
Practice locations
Addresses where Marvin H. Wertentheil is enrolled with Medicare (CMS data updated October 2, 2026).
- 951 E 23rd StBrooklyn, NY 11210 (347) 804‑4666
Group practices
Medicare enrollment lists Marvin H. Wertentheil as a member of this group (CMS data updated October 2, 2026).
- Ophthalmology Medical Services PC2 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1977 (49 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457370835 |
| 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