Nathan D. Grabher, M.D.
NPI 1760618623ActiveIndividual· Anesthesiology· Wausau, WI
Anesthesiology (M.D.) with Aspirus Riverview Hospital and Clinics Inc and 1 other group, practicing in Wausau, Wisconsin. Medicare paid $25,286 for services to 192 patients in 2024. Merck Sharp & Dohme LLC reported $21.14 in payments in 2025, mostly food and beverage. Lists Aspirus Wausau Hospital as a hospital affiliation.
Overview
| NPI | 1760618623 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 5, 2009 |
| Last updated in NPPES | Nov 14, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 56233-20 | WI |
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 - Anesthesiology (MI); Practitioner - Anesthesiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 192 |
|---|---|
| Services billed | 267 across 71 procedure codes |
| Paid by Medicare | $25,286 |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical groups
- Aspirus Riverview Hospital and Clinics IncWisconsin Rapids, WI · 172 clinicians
- Central Wisconsin AnesthesiologyWausau, WI · 57 clinicians
Hospital affiliation
- Aspirus Wausau HospitalWausau, WI
Industry payments (Open Payments)
- 2025$21.14 · 1 payment from 1 company
- 2024$9.07 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $21.14 | 1 |
What the 2025 payments were for
- Food and Beverage$21.14 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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