Peter T. Zacharia, MD
NPI 1689666745ActiveIndividual· Ophthalmology· Worcester, MA
Ophthalmology (MD) in Worcester, Massachusetts, trained at New York Medical College (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $641,576 for 6,293 claims, against $232,710 paid for services in 2024. Glaukos Corporation was the largest of 2 companies reporting payments in 2025, $79.40 in all, mostly food and beverage.
Overview
| NPI | 1689666745 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 16, 2005 |
| Last updated in NPPES | Dec 1, 2023 |
| Certified by provider | Dec 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 75948 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 746 |
|---|---|
| Services billed | 3,357 across 30 procedure codes |
| Paid by Medicare | $232,710 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,293 · 14,196 30-day fills |
|---|---|
| Patients | 865 |
| Total drug cost | $641,576 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Ophthalmology |
Hospital affiliation
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$79.40 · 2 payments from 2 companies
- 2024$301.70 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaukos Corporation | $46.18 | 1 |
| Alcon Vision LLC | $33.22 | 1 |
What the 2025 payments were for
- Food and Beverage$79.40 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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