Hollynn L. Larrabee, MD

Medicare activity in 2024

Official CMS public-use data for Hollynn L. Larrabee, 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. Emergency department visit with high level of medical decision making (99285)112 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)99 services
3. Electrocardiogram (ecg) 1 to 3 leads with review by physician only (93042)59 services
4. Critical care, first 30-74 minutes (99291)29 services
5. Emergency department visit with moderate level of medical decision making (99284)19 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).

• High blood pressure69%
• High cholesterol62%
• Arthritis52%
• Depression49%
• Anxiety42%
• Diabetes34%

Hospitals where Hollynn L. Larrabee works

Medicare's Facility Affiliation Data lists Hollynn L. Larrabee 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.

• Intermountain Health Alta View HospitalSandy, UT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 460044
• Intermountain Health Riverton HospitalRiverton, UT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 460058
• Intermountain Medical CenterMurray, UT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 460010

Practice locations

Addresses where Hollynn L. Larrabee is enrolled with Medicare (CMS data updated October 2, 2026).

• 5121 S Cottonwood StSalt Lake City, UT 84107 (801) 507‑9700

Group practices

Medicare enrollment lists Hollynn L. Larrabee as a member of this group (CMS data updated October 2, 2026).

• Utah Emergency Physicians157 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Utah →

Other emergency medicine doctors in Salt Lake City

Clinicians with the same Medicare primary specialty in Salt Lake City, UT — not a recommendation.

• Eric H. Gilbert, MD
• Spencer P. Ferrin, MD
• Ana S. Tuttle, MD
• Sharlene Miner, MD
• Jesse W. Hawkes, MD
• Micah G. Ownbey, MD
• Timothy Fuller
• Jeffery P. Druck, MD

All emergency medicine doctors in Salt Lake City →

Other clinicians in Utah Emergency Physicians

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

• Ronald M. Mylott, NP
• Matthew Treasure, DO
• Spencer P. Ferrin, MD
• Amber D. Mounday, MD
• David B. Mabey, MD
• Erica Jane Colvin, MD

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