Collin R. Ohning
NPI 1992182794ActiveIndividual· Ophthalmology, Retina Specialist· Greenbelt, MD
Ophthalmology, Retina Specialist in Greenbelt, Maryland, trained at Medical University of South Carolina College of Medicine (class of 2015). In 2024 Medicare paid $2,773,922 for 937 patients, and Part D covered 329 of their prescriptions, 60% of them generic. Astellas Pharma US Inc was the largest of 5 companies reporting payments in 2025, $244.64 in all, mostly food and beverage.
Overview
| NPI | 1992182794 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 30, 2015 |
| Last updated in NPPES | Jan 8, 2020 |
| Certified by provider | Jan 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | MD046964 | DC |
| Internal Medicine | 207R00000X | TRN22040 | FL |
| Ophthalmology | 207W00000X | MD046964 | DC |
| Ophthalmology | 207W00000X | D0087357 | MD |
| Ophthalmology | 207W00000X | 0101266781 | VA |
| Ophthalmology, Retina Specialist | 207WX0107X | 0101266781 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 937 |
|---|---|
| Services billed | 46,819 across 33 procedure codes |
| Paid by Medicare | $2,773,922 |
Part D prescriptions in 2024
| Prescriptions (claims) | 329 · 505 30-day fills |
|---|---|
| Patients | 112 |
| Total drug cost | $12,692 |
| Generic share | 60% of claims |
Education and affiliations
| Medical school | Medical University of South Carolina College of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Ophthalmology |
Medical group
- Retina Consultants of Carolina, PAGreenville, SC · 11 clinicians
Hospital affiliations
- Prisma Health Oconee Memorial HospitalSeneca, SC
- St Francis-DowntownGreenville, SC
Industry payments (Open Payments)
- 2025$244.64 · 11 payments from 5 companies
- 2024$69.10 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $101.44 | 5 |
| Abbvie Inc. | $74.76 | 3 |
| Ani Pharmaceuticals, Inc. | $30.01 | 1 |
| Bausch & Lomb Americas Inc. | $23.40 | 1 |
| Genentech USA, Inc. | $15.03 | 1 |
What the 2025 payments were for
- Food and Beverage$244.64 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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