Thomas Marshall Aaberg Jr., MD
NPI 1194753186ActiveIndividual· Ophthalmology, Retina Specialist· Grand Rapids, MI
Ophthalmology, Retina Specialist (MD) in Grand Rapids, Michigan, trained at University of Wisconsin School of Medicine (class of 1991). In 2024 Medicare paid $262,417 for 168 patients, and Part D covered 333 of their prescriptions, 64% of them generic. Regeneron Healthcare Solutions, Inc. was the largest of 6 companies reporting payments in 2025, $1,494 in all, mostly consulting fees.
Overview
| NPI | 1194753186 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 29, 2006 |
| Last updated in NPPES | Jan 26, 2021 |
| Certified by provider | Jan 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | 4301077476 | MI |
| Ophthalmology | 207W00000X | 4301077476 | MI |
| Ophthalmology, Uveitis and Ocular Inflammatory Disease | 207WX0108X | 4301077476 | MI |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 168 |
|---|---|
| Services billed | 2,175 across 39 procedure codes |
| Paid by Medicare | $262,417 |
Part D prescriptions in 2024
| Prescriptions (claims) | 333 · 610 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $24,206 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Ophthalmology |
Medical group
- Retina Specialists of Michigan PCGrand Rapids, MI · 11 clinicians
Industry payments (Open Payments)
- 2025$1,494 · 16 payments from 6 companies
- 2024$4,094 · 23 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $961.81 | 2 |
| Astellas Pharma US Inc | $150.04 | 4 |
| Abbvie Inc. | $148.43 | 5 |
| Genentech USA, Inc. | $124.99 | 1 |
| Ani Pharmaceuticals, Inc. | $90.34 | 3 |
What the 2025 payments were for
- Consulting Fee$940.00 · 1 payment
- Food and Beverage$553.77 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology, Retina Specialist providers in Grand Rapids
- 1801048699
- 1114366440
- 1669853768
- 1598793614
- 1669602033
- 1942463252
- 1558999821
All Ophthalmology, Retina Specialist providers in Michigan →