Melissa A. Derenzo, MD
NPI 1346327947ActiveIndividual· Ophthalmology· Butler, PA
Ophthalmology (MD) in Butler, Pennsylvania, trained at Pennsylvania State University College of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $163,925 for 905 claims, against $41,850 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 5 companies reporting payments in 2025, $411.18 in all, mostly food and beverage.
Overview
| NPI | 1346327947 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | MD426870 | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 204 |
|---|---|
| Services billed | 629 across 23 procedure codes |
| Paid by Medicare | $41,850 |
Part D prescriptions in 2024
| Prescriptions (claims) | 905 · 1,311 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $163,925 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | Pennsylvania State University College of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Ophthalmology |
Medical group
- Daniel J Nadler MD PCSewickley, PA · 3 clinicians
Industry payments (Open Payments)
- 2025$411.18 · 19 payments from 5 companies
- 2024$316.42 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $224.36 | 10 |
| Tarsus Pharmaceuticals, Inc. | $70.91 | 4 |
| Abbvie Inc. | $50.28 | 2 |
| Dompe US, Inc. | $35.63 | 2 |
| Alcon Vision LLC | $30.00 | 1 |
What the 2025 payments were for
- Food and Beverage$411.18 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in Butler
- 1679610521
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- 1437513959
- 1093824112