Quick answers
- Which hospitals does Dirk M. Nuenninghoff work at?
- Medicare's official clinician data lists Dirk M. Nuenninghoff at 5 hospitals: Aspirus Divine Savior Hospital, Mile Bluff Medical Center, Sauk Prairie Hospital, SSM Health St Clare Hospital - Baraboo and University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dirk M. Nuenninghoff see patients?
- Medicare's clinician data lists 1 practice location in Portage, WI. Call before your visit to confirm the address.
- What is Dirk M. Nuenninghoff's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Dirk M. Nuenninghoff accept Medicare assignment?
- Yes. Medicare's clinician data says Dirk M. Nuenninghoff 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 Dirk M. Nuenninghoff?
- (608) 742-3004, as listed in official Medicare / NPI Registry data.
- What is Dirk M. Nuenninghoff's NPI number?
- 1538109053. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dirk M. Nuenninghoff works
Medicare's Facility Affiliation Data lists Dirk M. Nuenninghoff at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Divine Savior HospitalPortage, WI · Acute Care Hospital · CCN 520041
- Mile Bluff Medical CenterMauston, WI · Acute Care Hospital · CCN 520109
- Sauk Prairie HospitalPrairie Du Sac, WI · Acute Care Hospital · CCN 520095
- SSM Health St Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · CCN 520057
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · CCN 520098
Practice locations
Addresses where Dirk M. Nuenninghoff is enrolled with Medicare (CMS data updated 2026-10-02).
- 2977 County Hwy CxPortage, WI 53901 (608) 742‑3004
Group practices
Medicare enrollment lists Dirk M. Nuenninghoff as a member of this group (CMS data updated 2026-10-02).
- University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nebraska College Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538109053 |
| 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