Brian Daniel Gerrelts, MD
NPI 1003869397ActiveIndividual· Surgery· Waterloo, IA
Surgery (MD) in Waterloo, Iowa, licensed in IA, with an NPI issued in May 2006. 142 Medicare patients in 2024, $41,369 paid; nearly all of their 107 Part D prescriptions were generic (97%). Vertex Pharmaceuticals Incorporated was the largest of 2 companies reporting payments in 2025, $92.92 in all, mostly food and beverage.
Overview
| NPI | 1003869397 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 18, 2006 |
| Last updated in NPPES | Feb 4, 2022 |
| Certified by provider | Feb 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 29250 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 142 |
|---|---|
| Services billed | 240 across 38 procedure codes |
| Paid by Medicare | $41,369 |
Part D prescriptions in 2024
| Prescriptions (claims) | 107 · 107 30-day fills |
|---|---|
| Patients | 76 |
| Total drug cost | $866.70 |
| Generic share | 97% of claims |
Industry payments (Open Payments)
- 2025$92.92 · 5 payments from 2 companies
- 2024$17.10 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $54.65 | 3 |
| Smith+nephew, Inc. | $38.27 | 2 |
What the 2025 payments were for
- Food and Beverage$92.92 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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