Leonard Feiner, MD
NPI 1871604645 · Ophthalmology Physician · Lawrence, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Feiner, MD is a Ophthalmology Physician provider in Lawrence, NY (NPI 1871604645).
Provider details
- NPI number
- 1871604645
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 116934-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
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 | 42 | 16 |
| Bimatoprostbrand: Lumigan | 16 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 15 | — |
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2010-11-15
Frequently asked questions
- What is Leonard Feiner's NPI number?
- Leonard Feiner's National Provider Identifier (NPI) is 1871604645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Feiner's specialty?
- Leonard Feiner is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Feiner located?
- Leonard Feiner's practice location on file with NPPES is 360 Central Ave, Lawrence, NY 11559-1619.
- What is Leonard Feiner's phone number?
- The practice phone number listed in the NPPES registry for Leonard Feiner is (516) 569-5644.
- Does Leonard Feiner accept Medicare?
- Leonard Feiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Feiner's NPI active?
- Yes — Leonard Feiner's NPI (1871604645) is active in the NPPES registry as of the last update on 2010-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.