Spencer H. Amundsen, MD

Medicare activity in 2024

Official CMS public-use data for Spencer H. Amundsen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)480 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)211 services
3. X-ray of knee, 3 views (73562)157 services
4. X-ray of hip, 2-3 views (73502)136 services
5. Aspiration and/or injection of fluid from large joint (20610)110 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• Arthritis75%
• High cholesterol71%
• High blood pressure67%
• Depression31%
• Anxiety27%
• Diabetes23%

Hospitals where Spencer H. Amundsen works

Medicare's Facility Affiliation Data lists Spencer H. Amundsen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Lone Peak HospitalDraper, UT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 460060

Practice locations

Addresses where Spencer H. Amundsen is enrolled with Medicare (CMS data updated October 2, 2026).

• 8846 S Redwood Rd, Suite 121West Jordan, UT 84088 (801) 569‑1999

Group practices

Medicare enrollment lists Spencer H. Amundsen as a member of this group (CMS data updated October 2, 2026).

• Mountainstar Specialty Services LLC30 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in Utah →

Other orthopedic surgeons in West Jordan

Clinicians with the same Medicare primary specialty in West Jordan, UT — not a recommendation.

• Richard B. Mackey, MD
• Jeffrey D. Jackson, MD
• Armen Khachatryan, MD
• Gregory Anderson, MD
• Wade M. Sessions, MD
• Stuart C. Marshall Jr., MD
• Kevin Sagers, DO

All orthopedic surgeons in West Jordan →

Other clinicians in Mountainstar Specialty Services LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Justin D. Atherton, DO
• Jakub A. Sikora-Klak, MD
• Oliver B. Nikolaus, MD
• Jennifer L. Rehbein, MD
• Alexa V. Nickel
• James E. Brewster, DO

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians