Quick answers
- Which hospitals does William H. Ranum work at?
- Medicare's official clinician data lists William H. Ranum at 4 hospitals: Sauk Prairie Hospital, SSM Health St Clare Hospital - Baraboo, SSM Health St Mary's Hospital - Madison and University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William H. Ranum see patients?
- Medicare's clinician data lists 1 practice location in Waunakee, WI. Call before your visit to confirm the address.
- What is William H. Ranum's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does William H. Ranum accept Medicare assignment?
- Yes. Medicare's clinician data says William H. Ranum 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.
- Does William H. Ranum offer telehealth?
- Medicare's clinician data says William H. Ranum offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William H. Ranum?
- (608) 849-4315, as listed in official Medicare / NPI Registry data.
- What is William H. Ranum's NPI number?
- 1043267172. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William H. Ranum works
Medicare's Facility Affiliation Data lists William H. Ranum at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sauk Prairie HospitalPrairie Du Sac, WI · Acute Care Hospital · CCN 520095
- SSM Health St Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · CCN 520057
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · CCN 520083
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · CCN 520098
Practice locations
Addresses where William H. Ranum is enrolled with Medicare (CMS data updated 2026-10-02).
- 1300 S Century AveWaunakee, WI 53597 (608) 849‑4315
Group practices
Medicare enrollment lists William H. Ranum as a member of this group (CMS data updated 2026-10-02).
- Dean Health Systems Inc1,159 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Waunakee
Clinicians with the same Medicare primary specialty in Waunakee, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043267172 |
| 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