Nicholas Darrow Marchase, M.D.
NPI 1518226372ActiveIndividual· Ophthalmology· Conway, SC
Ophthalmology (M.D.) in Conway, South Carolina, trained at University of Alabama School of Medicine (class of 2012). In 2024 Medicare paid $5,308,040 for 829 patients, and Part D covered 806 of their prescriptions, 70% of them generic. Genentech USA, Inc. was the largest of 8 companies reporting payments in 2025, $886.54 in all, mostly food and beverage.
Overview
| NPI | 1518226372 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 14, 2012 |
| Last updated in NPPES | Sep 11, 2020 |
| Certified by provider | Sep 11, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | MD83161 | 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 | 829 |
|---|---|
| Services billed | 171,689 across 50 procedure codes |
| Paid by Medicare | $5,308,040 |
Part D prescriptions in 2024
| Prescriptions (claims) | 806 · 1,299 30-day fills |
|---|---|
| Patients | 261 |
| Total drug cost | $47,536 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Ophthalmology |
Medical group
- South Carolina Retina Institute LLCConway, SC · 4 clinicians
Industry payments (Open Payments)
- 2025$886.54 · 33 payments from 8 companies
- 2024$619.94 · 28 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $278.96 | 12 |
| Astellas Pharma US Inc | $200.65 | 9 |
| Alcon Vision LLC | $124.45 | 1 |
| Abbvie Inc. | $76.31 | 4 |
| Regeneron Healthcare Solutions, Inc. | $69.28 | 2 |
What the 2025 payments were for
- Food and Beverage$886.54 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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