Doctor profile · Federal record

Dr. William Cosman, M.D.

Ophthalmology Physician (CMS: Ophthalmology) · Medina, NY

  • NPI 1326099789
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 24 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
500 Erie St S
Medina, NY 141031010
(585) 798-2020
fax (585) 798-3365
Additional location
6076 Brockport Spencerport RD
Brockport, NY 144202602
(585) 637-2020
Mailing address
500 Erie St
Medina, NY 141031010

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
January 29, 2025
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207W00000X — NUCC code
State license (1)
New York #2393991
Medicaid
NY #02773637

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326099789. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
878
Distinct HCPCS
10
Medicare allowed
$140,162
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 216 216 $123
92136 Measurement of corneal curvature and depth of eye 127 63 $23
66984 Removal of cataract with insertion of prosthetic lens 103 63 $525
92134 Imaging of retina 74 71 $39
99214 Established patient office or other outpatient visit, 30-39 minutes 72 69 $125
99213 Established patient office or other outpatient visit, 20-29 minutes 49 40 $88
99204 New patient office or other outpatient visit, 45-59 minutes 44 44 $159
66821 Removal of recurring cataract in lens capsule using a laser 42 33 $324
92083 Exam of visual field with extended testing 42 38 $61
92133 Imaging of optic nerve 27 27 $36

In context: peer comparison

Among 1 peers in Medina Ophthalmology Physician, average services per provider: 58. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,786
Transactions
43
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Biotissue Holdings INC. 27 $3,235.10
Alcon Vision LLC 9 $428.09
RxSight INC 3 $48.44
Bausch & Lomb Americas INC. 3 $46.72
Oyster Point Pharma, INC. 1 $27.17

By nature of payment

Travel and Lodging
$2,520
Food and Beverage
$1,239
Honoraria
$26

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
879
Patients
332
Total drug cost
$230,869
Drug Type Claims Patients Total cost
Latanoprost Generic 300 88 $9,205
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 107 28 $4,308
Prednisolone Acetate Generic 107 80 $4,906
Lumigan (Bimatoprost) Brand 58 18 $39,084
Cyclosporine Generic 44 22 $39,305
Brimonidine Tartrate-Timolol (Brimonidine Tartrate/Timolol) Brand 39 14 $12,059
Restasis (Cyclosporine) Brand 36 18 $47,718
Timolol Maleate Generic 32 15 $573
Travoprost Generic 32 0 $10,006
Rocklatan (Netarsudil Mesylat/Latanoprost) Brand 28 0 $9,337

Frequently asked questions

Auto-generated from federal data
What is Dr. William Cosman's medical specialty?
Dr. William Cosman practices Ophthalmology Physician in Medina, NY.
Where does Dr. William Cosman practice?
Dr. William Cosman practices at 500 Erie St S, Medina, NY 141031010. Office phone: 5857982020.
What is Dr. William Cosman's NPI?
Dr. William Cosman's National Provider Identifier (NPI) is 1326099789, issued by NPPES.
Does Dr. William Cosman accept Medicare assignment?
Yes. Dr. William Cosman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Cosman commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Measurement of corneal curvature and depth of eye (HCPCS 92136); Removal of cataract with insertion of prosthetic lens (HCPCS 66984). Source: CMS Medicare Physician & Other Practitioners file.