Gregory S. Christensen, MD
NPI 1851374482ActiveIndividual· Ophthalmology· Greenville, SC
Ophthalmology (MD) in Greenville, South Carolina, licensed in SC, with an NPI issued in November 2005. In 2024 Medicare paid $1,104,975 for 872 patients, and Part D covered 661 of their prescriptions, 66% of them generic. Regeneron Healthcare Solutions, Inc. was the largest of 2 companies reporting payments in 2024, $51.40 in all, mostly food and beverage.
Overview
| NPI | 1851374482 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 29, 2005 |
| Last updated in NPPES | Oct 29, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 17217 | SC |
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 (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 872 |
|---|---|
| Services billed | 21,359 across 30 procedure codes |
| Paid by Medicare | $1,104,975 |
Part D prescriptions in 2024
| Prescriptions (claims) | 661 · 1,183 30-day fills |
|---|---|
| Patients | 203 |
| Total drug cost | $31,825 |
| Generic share | 66% of claims |
Industry payments (Open Payments)
- 2024$51.40 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $27.38 | 1 |
| Genentech USA, Inc. | $24.02 | 1 |
What the 2024 payments were for
- Food and Beverage$51.40 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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