Grant Daniel Thimesch, DO
NPI 1770267197ActiveIndividual· Dermatology· Dearborn, MI
Dermatology (DO) in Dearborn, Michigan, licensed in MI, with an NPI issued in June 2023. Enrolled in Medicare as order and referring only - dermatology. Genzyme Corporation was the largest of 19 companies reporting payments in 2025, $4,164 in all, mostly food and beverage.
Overview
| NPI | 1770267197 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 14, 2023 |
| Last updated in NPPES | May 17, 2024 |
| Certified by provider | May 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 5151016329 | MI |
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 Order and Referring Only - Dermatology (MI) |
|---|
Industry payments (Open Payments)
- 2025$4,164 · 75 payments from 19 companies
- 2024$3,119 · 51 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $695.85 | 14 |
| Galderma Laboratories, L.P. | $467.07 | 5 |
| Sun Pharmaceutical Industries Inc. | $366.39 | 4 |
| Regeneron Healthcare Solutions, Inc. | $345.07 | 11 |
| Novartis Pharmaceuticals Corporation | $323.53 | 5 |
What the 2025 payments were for
- Food and Beverage$4,064 · 74 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 dermatologists in Dearborn · All dermatologists in Michigan