Quick answers
- Does Donald P. Holzhauer accept Medicare assignment?
- Yes. Medicare's clinician data says Donald P. Holzhauer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Donald P. Holzhauer's NPI number?
- 1184732869. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Donald P. Holzhauer is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 Delafield St, Suite 222Waukesha, WI 53188 (262) 547‑8665
- 475 Hartwig Blvd, Suite 100Johnson Creek, WI 53038 (920) 699‑3730
Group practices
Medicare enrollment lists Donald P. Holzhauer as a member of this group (CMS data updated October 2, 2026).
- Oral and Maxillofacial Surgery Associates of Waukesha, Ltd7 clinicians in the group
Specialties
- Maxillofacial Surgeryprimary
Other maxillofacial surgeons in Waukesha
Clinicians with the same Medicare primary specialty in Waukesha, WI — not a recommendation.
Other clinicians in Oral and Maxillofacial Surgery Associates of Waukesha, Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DDM |
|---|---|
| Dental school | Marquette University School Of Dentistry |
| Graduation year | 1993 (33 years since dental school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184732869 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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