Angela J. De Hamer, DO

Medicare activity in 2024

Official CMS public-use data for Angela J. De Hamer, 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 50 minutes (99233)451 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)212 services
3. Hospital discharge day management, more than 30 minutes (99239)110 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)40 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)25 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%
• Arthritis50%
• Chronic kidney disease48%
• Ischemic heart disease47%
• Diabetes44%

Hospitals where Angela J. De Hamer works

Medicare's Facility Affiliation Data lists Angela J. De Hamer 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 Angela J. De Hamer is enrolled with Medicare (CMS data updated October 2, 2026).

• 1111 6th AveDes Moines, IA 50314
• 2353 SE 14th StDes Moines, IA 50320 (515) 248‑1400
• 330 Laurel St, Suite 1200Des Moines, IA 50314
• 3509 E 29th StDes Moines, IA 50317 (515) 248‑1600

Group practices

Medicare enrollment lists Angela J. De Hamer as a member of these groups (CMS data updated October 2, 2026).

• Mercy Clinics Inc443 clinicians in the group
• Primary Health Care Inc71 clinicians in the group

Specialties

• Hospitalistprimary
• Internal Medicinealso

Find other Hospitalist doctors in Iowa →

Other hospitalists in Des Moines

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

• Dustin J. Uhlenhopp, DO
• Stephanie Sam, DO
• Moanis M. Omar, MD
• Trivian Nguyen, MD
• Kristoffer T. Davidson, DO
• Priscilla J. Kalhorn, DO
• Francis W. Sapanhila, MD
• Terence J. Cullen Jr., DO

All hospitalists in Des Moines →

Other clinicians in Mercy Clinics Inc

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

• Ricardo E. Bendezu, MD
• Lisa M. Gardner
• Sarah A. Town
• Anthony Kopp, DO
• Corinne Conley
• Krissa Wiley

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