Micah L. Larsen, MD

Medicare activity in 2024

Official CMS public-use data for Micah L. Larsen, 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)411 services
2. Emergency department visit with moderate level of medical decision making (99284)265 services
3. Critical care, first 30-74 minutes (99291)94 services
4. Emergency department visit with low level of medical decision making (99283)17 services
5. Simple repair of surface wound of face, ears, eyelids, nose, lips, or mouth, 2.5 cm or less (12011)13 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 pressure75%
• High cholesterol75%
• Arthritis64%
• Ischemic heart disease47%
• Chronic kidney disease47%
• Depression43%

Hospitals where Micah L. Larsen works

Medicare's Facility Affiliation Data lists Micah L. Larsen 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.

• Mercy Hospital Oklahoma City, IncOklahoma City, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370013

Practice locations

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

• 430 N Monte Vista StAda, OK 74820 (580) 332‑2323

Group practices

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

• Mercy Clinic Oklahoma Communities649 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Oklahoma →

Other emergency medicine doctors in Ada

Clinicians with the same Medicare primary specialty in Ada, OK — not a recommendation.

• Amanda Satterwhite, MD
• James M. Fitzgerald Jr., DO
• Olivia D. Reed, DO
• Christopher C. Benson, DO
• Jacob Hollenbeck, DO
• Natalie Siegfried, DO
• Nolen D. Anderson, DO
• Robert E. Suter Sr., DO

All emergency medicine doctors in Ada →

Other clinicians in Mercy Clinic Oklahoma Communities

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

• Brittany N. Flemings, PA
• Amanda Satterwhite, MD
• Ryan J. Lynch, DO
• Brendon Hines, DO
• Visal Pok, MD
• Debra A. Riggs, 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