Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William Chase Madsen, DO

Individual provider Emergency Medicine Physician · NPI 1013545433

William Chase Madsen, DO practises Emergency Medicine in Richfield, Utah. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2020, 6 years ago. Practices with Ihc Health Services Inc, a 3,947-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Nevada and Utah.

Years since qualifying
6
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
NV, UT
In the registry since
2020
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1000 N Main St Ste A
Richfield, UT 84701-2069
Phone: (435) 893-0580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1800 W Charleston Blvd, Las Vegas, NV 89102-2329 — (702) 383-1958

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 14250379-1204 (UT)
Emergency Medicine Physician Taxonomy 207P00000X · Licence DO3341 (NV)

Record details

NPI number1013545433
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 31, 2020
Last updated in NPPESNovember 17, 2025
Certification dateNovember 17, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2020 (6 years in practice)
Group practice Ihc Health Services Inc — 3947 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients170
Services billed 272 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Ihc Health Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3947 clinicians in the practice; 12 are shown here.

Other providers in Richfield