Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1013545433 Individual Practitioner Male Practitioner

Dr. William Chase Madsen , DO

Emergency Medicine • Richfield, UT

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Madsen, DO is a certified Emergency Medicine practicing in Richfield, UT. With approximately 6 years of clinical experience since graduating from Lake Erie College Of Osteopathic Medicine, Erie in 2020, Dr. Madsen delivers high-quality medical care to the local community at 1000 N MAIN ST STE A.

Dr. Madsen maintains professional affiliations with Ihc Health Services Inc, University Medical Center Of Southern Nevada and accepts Medicare assignment.

Frequently performed procedures and clinical services include emergency department visit for life threatening or functioning severity, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, emergency department visit with moderate level of medical decision making. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1000 N Main St Ste A

Richfield, UT 847012069

Telephone 4358930580
Associated Practice Facility / Clinic
🏢 Ihc Health Services Inc Facility NPI 1265576326

Medicare Profile & Education

Medical School

Lake Erie College Of Osteopathic Medicine, Erie

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Emergency Medicine in Richfield, UT

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -1.0 yrs vs City Avg
City Avg: 7.0 Yrs
State Avg: 18.7 Yrs
Regional Practice Density
2 Specialists

Practicing in Richfield, UT (514 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
92.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Madsen (6 Years) 6 Yrs
Richfield Specialty Average (7.0 Years) 7.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity
91 90 $2680.00 $167.72
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
72 66 $170.38 $7.77
99284 Emergency department visit with moderate level of medical decision making
44 43 $592.91 $116.11
99291 Critical care, first 30-74 minutes
33 33 $3303.79 $203.86

Medical Specialties & State Licenses

CMS Verified: 2025-11-17
Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

State License UT 14250379-1204

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Emergency Medicine

NUCC Taxonomy Code: 207P00000X

State License NV DO3341

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Hospital & Practice Group Affiliations

Ihc Health Services Inc

1000 N Main St, Richfield, UT 847012069

Phone: 4358930580

University Medical Center Of Southern Nevada

1800 W Charleston Blvd, Las Vegas, NV 891022329

Phone: 7023832000

Ihc Health Services Inc

1000 N Main, Richfield, UT 847011843

Phone: 4358934100

Secondary Practice Locations

1800 W Charleston Blvd

Las Vegas, NV 891022329

Phone: 7023831958

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

13 Associated Practitioners
Dr. Justin Abbott , DO

Family Medicine

NPI 1184814436

Doctor of Osteopathic Medicine (D.O.)

Dr. David Crimin , DO

Family Medicine

NPI 1225044431

Doctor of Osteopathic Medicine (D.O.)

Dr. Steven Jones , DO

Family Medicine

NPI 1275925919

Doctor of Osteopathic Medicine (D.O.)

Sadie Dahlsrud , CNM

Registered Nurse - Obstetric, High-Risk

NPI 1497040356

Certified Nurse Midwife

Dr. Seth Bohman , MD

Emergency Medicine

NPI 1588313894

Doctor of Medicine (M.D.)

Adam Partridge , PA-C

Physician Assistant

NPI 1689142234

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

12 Historical Events
📍
Updated Practice Location November 17, 2025

Registered at 1000 N MAIN ST STE A, RICHFIELD, UT 847012069 (Tel: 4358930580)

📍
Updated Business Mailing Address November 17, 2025

Registered at PO BOX 27128, SALT LAKE CITY, UT 841270128

👤
Provider Name / Credentials Updated November 17, 2025

Recorded as WILLIAM MADSEN, DO

📍
Updated Practice Location October 29, 2024

Registered at 1800 W CHARLESTON BLVD, LAS VEGAS, NV 891022329 (Tel: 7023831958)

📍
Updated Business Mailing Address October 29, 2024

Registered at 1800 W CHARLESTON BLVD, LAS VEGAS, NV 891022386 (Tel: 7023832000)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 28, 2023

Emergency Medicine (License #DO3341 in NV)

NPI Profile Active March 31, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location March 31, 2020

Registered at 901 RANCHO LN STE 135, LAS VEGAS, NV 891063826 (Tel: 7023837885)

📍
Updated Business Mailing Address March 31, 2020

Registered at 901 RANCHO LN STE 135, LAS VEGAS, NV 891063826 (Tel: 7023837885)

👤
Provider Name / Credentials Updated March 31, 2020

Recorded as WILLIAM MADSEN

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 31, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 31, 2020

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1013545433
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 31, 2020
Last Update: November 17, 2025
Sole Proprietor: No

Mailing Address

Po Box 27128

Salt Lake City, UT 841270128

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.