Quick answers
- Does Michael P. Ehrenhaus accept Medicare assignment?
- Yes. Medicare's clinician data says Michael P. Ehrenhaus 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 Michael P. Ehrenhaus see?
- In 2024, CMS data shows 207 Original Medicare patients and 1,560 services for Michael P. Ehrenhaus. This counts Original Medicare only and measures volume, not quality.
- What is Michael P. Ehrenhaus's NPI number?
- 1609859123. 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 Michael P. Ehrenhaus, 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 | 207 |
|---|---|
| Services billed to Medicare | 1,560 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Imaging of front third of eye using a special microscope (92286)311 services
- Established patient problem focused exam of visual system (92012)237 services
- Exam of visual field with extended testing (92083)179 services
- Photography of the retina (92250)175 services
- Ct scan of cornea (92025)168 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%
- Diabetes58%
- Arthritis49%
- Ischemic heart disease33%
- Chronic kidney disease26%
Practice locations
Addresses where Michael P. Ehrenhaus is enrolled with Medicare (CMS data updated October 2, 2026).
- 142 Joralemon St, Unit BlBrooklyn, NY 11201 (718) 265‑9900
- 4402 Francis Lewis Blvd, Suite 2bBayside, NY 11361 (718) 425‑0903
Group practices
Medicare enrollment lists Michael P. Ehrenhaus as a member of this group (CMS data updated October 2, 2026).
- Smart Medical PLLC13 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Other clinicians in Smart Medical PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609859123 |
| 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