William Cosman, M.D.
NPI 1326099789 · Ophthalmology Physician · Medina, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Cosman, M.D. is a Ophthalmology Physician provider in Medina, NY (NPI 1326099789).
Provider details
- NPI number
- 1326099789
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2393991 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,005 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 152 | $123 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 146 | $23 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 117 | $529 |
| New Patient Complete Exam of Visual System92004 | 117 | $146 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 98 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 73 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 314 | 114 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 161 | 49 |
| Timolol Maleate | 114 | 48 |
| Bimatoprostbrand: Lumigan | 103 | 38 |
| Prednisolone Acetate | 99 | 81 |
| Cyclosporine | 63 | 35 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 62 | 51 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,786 across 43 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
Additional practice locations (1)
- 6076 Brockport Spencerport RdBrockport, NY 14420-2602Phone: (585) 637-2020Fax: (585) 798-3365
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2025-01-29
- Certified
- 2025-01-29
Frequently asked questions
- What is William Cosman's NPI number?
- William Cosman's National Provider Identifier (NPI) is 1326099789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Cosman's specialty?
- William Cosman is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Cosman located?
- William Cosman's practice location on file with NPPES is 500 Erie St S, Medina, NY 14103-1010.
- What is William Cosman's phone number?
- The practice phone number listed in the NPPES registry for William Cosman is (585) 798-2020.
- Does William Cosman accept Medicare?
- William Cosman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Cosman's NPI active?
- Yes — William Cosman's NPI (1326099789) is active in the NPPES registry as of the last update on 2025-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.