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O Gregory Zazulak, MD

NPI 1902986938ActiveIndividual· Ophthalmology· Rochester, NY

Ophthalmology (MD) in Rochester, New York, trained at State University of New York at Buffalo School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $158,046 for 2,572 claims, against $44,633 paid for services in 2024. Sight Sciences, Inc. was the largest of 6 companies reporting payments in 2025, $4,296 in all, mostly speaking and faculty fees.

Overview

NPI1902986938
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedOct 16, 2006
Last updated in NPPESJun 22, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000X1788711NY

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Ophthalmology (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients145
Services billed446 across 31 procedure codes
Paid by Medicare$44,633

Part D prescriptions in 2024

Prescriptions (claims)2,572 · 4,244 30-day fills
Patients367
Total drug cost$158,046
Generic share67% of claims

Medicare sources and data years

Education and affiliations

Medical schoolState University of New York at Buffalo School of Medicine
Graduation year1988
Medicare specialtyOphthalmology

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$4,296 · 21 payments from 6 companies
  • 2024$1,353 · 45 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Sight Sciences, Inc.$3,8006
Alcon Vision LLC$261.938
Abbvie Inc.$112.333
Bausch & Lomb Americas Inc.$75.782
Amgen Inc.$28.021

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,500 · 1 payment
  • Food and Beverage$796.46 · 20 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Ophthalmology providers in Rochester

All Ophthalmology providers in New York →