Gana R. Nadiga, MD
NPI 1780681411ActiveIndividual· Ophthalmology· Longview, TX
Ophthalmology (MD) in Longview, Texas, trained at University of Rochester School of Medicine and Dentistry (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $116,512 for 1,280 claims, against $41,209 paid for services in 2024. Bausch & Lomb Americas Inc. reported $22.55 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1780681411 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | Oct 14, 2026 |
| Certified by provider | Oct 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | L9824 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 204 |
|---|---|
| Services billed | 608 across 21 procedure codes |
| Paid by Medicare | $41,209 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,280 · 1,996 30-day fills |
|---|---|
| Patients | 225 |
| Total drug cost | $116,512 |
| Generic share | 54% of claims |
Education and affiliations
| Medical school | University of Rochester School of Medicine and Dentistry |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Ophthalmology |
Medical group
- Marvin Kenneth Hall IIIMarshall, TX · 2 clinicians
Hospital affiliation
- Christus Good Shepherd Medical CenterLongview, TX
Industry payments (Open Payments)
- 2024$22.55 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $22.55 | 1 |
What the 2024 payments were for
- Food and Beverage$22.55 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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