Dionys Rosenbaum, MD
NPI 1235248311 · Ophthalmology Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dionys Rosenbaum, MD is a Ophthalmology Physician provider in Brooklyn, NY (NPI 1235248311).
Provider details
- NPI number
- 1235248311
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1335431 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,818 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 844 | $47 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 675 | $18 |
| Established Patient Problem Focused Exam of Visual System92012 | 444 | $104 |
| Established Patient Complete Exam of Visual System92014 | 412 | $147 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing92201 | 182 | $28 |
| New Patient Complete Exam of Visual System92004 | 101 | $175 |
| Injection of Drug Into Eye |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 35 | 13 |
| Travoprost | 14 | — |
| Netarsudil Mesylatebrand: Rhopressa | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$132 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2016-02-18
Frequently asked questions
- What is Dionys Rosenbaum's NPI number?
- Dionys Rosenbaum's National Provider Identifier (NPI) is 1235248311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dionys Rosenbaum's specialty?
- Dionys Rosenbaum is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Dionys Rosenbaum located?
- Dionys Rosenbaum's practice location on file with NPPES is 1310 48th St, Brooklyn, NY 11219-3153.
- What is Dionys Rosenbaum's phone number?
- The practice phone number listed in the NPPES registry for Dionys Rosenbaum is (718) 436-8988.
- Does Dionys Rosenbaum accept Medicare?
- Dionys Rosenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dionys Rosenbaum's NPI active?
- Yes — Dionys Rosenbaum's NPI (1235248311) is active in the NPPES registry as of the last update on 2016-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.