Quick answers
- Which hospitals does Nathan Grabher work at?
- Medicare's official clinician data lists Nathan Grabher at 1 hospital: Aspirus Wausau Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nathan Grabher see patients?
- Medicare's clinician data lists 4 practice locations, including Wausau, WI and Wisconsin Rapids, WI. Call before your visit to confirm the address.
- What is Nathan Grabher's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Nathan Grabher accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan Grabher accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Nathan Grabher?
- (715) 842-4490, as listed in official Medicare / NPI Registry data.
- What is Nathan Grabher's NPI number?
- 1760618623. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nathan Grabher works
Medicare's Facility Affiliation Data lists Nathan Grabher at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Wausau HospitalWausau, WI · Acute Care Hospital · CCN 520030
Practice locations
Addresses where Nathan Grabher is enrolled with Medicare (CMS data updated 2026-10-02).
- 2809 Westhill DrWausau, WI 54401 (715) 842‑4490
- 333 Pine Ridge BlvdWausau, WI 54401 (715) 848‑2792
- 410 Dewey StWisconsin Rapids, WI 54494 (715) 423‑6060
- 420 Dewey StWisconsin Rapids, WI 54494 (715) 422‑7750
Group practices
Medicare enrollment lists Nathan Grabher as a member of these groups (CMS data updated 2026-10-02).
- Aspirus Riverview Hospital and Clinics Inc172 clinicians in the group
- Central Wisconsin Anesthesiology57 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Wausau
Clinicians with the same Medicare primary specialty in Wausau, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760618623 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians