Gregory R. Blaha, MD, PHD
NPI 1902998776ActiveIndividual· Ophthalmology· Peabody, MA
Ophthalmology (MD, PHD) in Peabody, Massachusetts, trained at Perelman School of Med at the University of Pennsylvania (class of 2000). In 2024 Medicare paid $588,356 for 938 patients, and Part D covered 580 of their prescriptions, 63% of them generic. Alcon Vision LLC was the largest of 2 companies reporting payments in 2025, $302.16 in all, mostly food and beverage.
Overview
| NPI | 1902998776 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | May 10, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 221050 | MA |
| Ophthalmology, Retina Specialist | 207WX0107X | 221050 | 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 | 938 |
|---|---|
| Services billed | 10,120 across 51 procedure codes |
| Paid by Medicare | $588,356 |
Part D prescriptions in 2024
| Prescriptions (claims) | 580 · 844 30-day fills |
|---|---|
| Patients | 166 |
| Total drug cost | $29,678 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Ophthalmology |
Medical groups
- Lahey Clinic IncBurlington, MA · 1,381 clinicians
- John Gurley MD PCManchester, MA · 5 clinicians
Hospital affiliations
- Beth Israel Deaconess Medical CenterBoston, MA
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- North Shore Medical Center -Salem, MA
- Northeast Hospital CorporationBeverly, MA
Industry payments (Open Payments)
- 2025$302.16 · 2 payments from 2 companies
- 2024$951.72 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $154.38 | 1 |
| Genentech, Inc. | $147.78 | 1 |
What the 2025 payments were for
- Food and Beverage$302.16 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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