Megan R. Peterson, DO

Medicare activity in 2024

Official CMS public-use data for Megan R. Peterson, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)41 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)34 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)21 services
4. Hospital discharge day management, more than 30 minutes (99239)14 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%
• Arthritis49%
• Diabetes48%
• Chronic kidney disease48%
• Atrial fibrillation46%

Hospitals where Megan R. Peterson works

Medicare's Facility Affiliation Data lists Megan R. Peterson 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.

• MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160064
• Mitchell County Regional HealthOsage, IA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 161323

Practice locations

Addresses where Megan R. Peterson is enrolled with Medicare (CMS data updated October 2, 2026).

• 140 W 4th StSaint Ansgar, IA 50472 (641) 736‑4401
• 620 N 8th StOsage, IA 50461 (641) 732‑6100

Group practices

Medicare enrollment lists Megan R. Peterson as a member of this group (CMS data updated October 2, 2026).

• Mitchell County Memorial Hospital26 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Iowa →

Other family doctors in Iowa

Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.

• Kelly D. Ross, MD
• Kara Lee A. Thompson, DO
• Madison K. Purvis
• Anand K. Shah, MD
• Meredith A. Christ, DO
• Mitchell Schmidt, MD
• Samantha J. Algrim, MD
• Craig R. Davenport, MD

All family doctors in Iowa →

Other clinicians in Mitchell County Memorial Hospital

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

• Holly L. Voigt, PA
• Jacob E. Staudt, DO
• Dana M. Nielsen-Huberg
• Holly Arciniega
• Gregg D. Vanderwaerdt, PA
• Kelly D. Ross, 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