Quick answers
- Which hospitals does William Madsen work at?
- Medicare's official clinician data lists William Madsen at 2 hospitals: Intermountain Health Sevier Valley Hospital and University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Madsen see patients?
- Medicare's clinician data lists 3 practice locations, including Richfield, UT and Las Vegas, NV. Call before your visit to confirm the address.
- What is William Madsen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does William Madsen accept Medicare assignment?
- Yes. Medicare's clinician data says William Madsen 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 William Madsen?
- (435) 893-4100, as listed in official Medicare / NPI Registry data.
- What is William Madsen's NPI number?
- 1013545433. 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 Madsen works
Medicare's Facility Affiliation Data lists William Madsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Intermountain Health Sevier Valley HospitalRichfield, UT · Acute Care Hospital · CCN 460026
- University Medical CenterLas Vegas, NV · Acute Care Hospital · CCN 290007
Practice locations
Addresses where William Madsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 N Main, Sevier Valley Hospital Physicians GrpRichfield, UT 84701 (435) 893‑4100
- 1000 N Main St, Suite ARichfield, UT 84701 (435) 893‑0580
- 1800 W Charleston BlvdLas Vegas, NV 89102 (702) 383‑2000
Group practices
Medicare enrollment lists William Madsen as a member of these groups (CMS data updated 2026-10-02).
- Ihc Health Services Inc3,960 clinicians in the group
- University Medical Center of Southern Nevada402 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Richfield
Clinicians with the same Medicare primary specialty in Richfield, UT — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013545433 |
| 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