Jennifer L. Gerrietts, DO

Medicare activity in 2024

Official CMS public-use data for Jennifer L. Gerrietts, 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. Insertion of needle into vein for collection of blood sample (36415)216 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)185 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)184 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)138 services
5. Hemoglobin a1c level (83036)131 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 cholesterol75%
• High blood pressure71%
• Arthritis36%
• Diabetes33%
• Anxiety26%
• Chronic kidney disease22%

Hospitals where Jennifer L. Gerrietts works

Medicare's Facility Affiliation Data lists Jennifer L. Gerrietts 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 Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 160083

Practice locations

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

• 5615 NW 86th St, Mercyone Johnston Family Medicine ClinicJohnston, IA 50131 (515) 643‑6000

Group practices

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

• Mercy Clinics Inc443 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Iowa →

Other family doctors in Johnston

Clinicians with the same Medicare primary specialty in Johnston, IA — not a recommendation.

• Kenneth M. Andersen, MD
• Lindsey A. Hohulin
• Tyler S. Olson, MD
• John G. Amspaugh, MD
• Amy J. Fulton, MD
• Carlos Alarcon Schroder, MD
• Abbie D. Ruisch, DO
• Elizabeth L. Jauron, MD

All family doctors in Johnston →

Other clinicians in Mercy Clinics Inc

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

• Sharon D. Ranes
• Amy B. Mitchell, DO
• Kenneth M. Andersen, MD
• Courtney Madonia
• Soren R. Kraemer, MD
• Grace E. Valen Gatrost

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