Ranked listRefreshed monthly

The 10 largest hospitals in Iowa by outpatient sites

University of Iowa Health Care Medical Center and MercyOne Waterloo Medical Center share the top spot in Iowa, with 26 sites each. Together the 10 leaders hold 142 sites in eight cities.

Updated Outpatient sites linked to each hospital in the Dmand AI org hierarchyHow we ranked

  1. University of Iowa Health Care Medical CenterIowa City · The University of Iowa26sites743beds
  2. MercyOne Waterloo Medical CenterWaterloo · Trinity Health26sites137beds
  3. MercyOne North Iowa Medical CenterMason City · Trinity Health15sites199beds
  4. MercyOne Genesis Davenport Medical CenterDavenport · Trinity Health14sites308beds
  5. UnityPoint Health - St. Luke's Hospital - Cedar RapidsCedar Rapids · UnityPoint Health14sites294beds
  6. UnityPoint Health - Iowa Methodist Medical CenterDes Moines · UnityPoint Health13sites607beds
  7. MercyOne Des Moines Medical CenterDes Moines · Trinity Health10sites519beds
  8. UnityPoint Health - Allen HospitalWaterloo · UnityPoint Health9sites200beds
  9. Southeast Iowa Regional Medical Center, West BurlingtonWest Burlington · Great River Health8sites174beds
  10. UnityPoint Health - St. Luke'sSioux City · UnityPoint Health7sites245beds

The 10 highest of 53 Iowa hospitals that report outpatient sites. Ranks compare size, not quality of care.

Every hospital in Iowa

The 10 top Iowa hospitals hold 63% of all outpatient sites

53 Iowa hospitals report outpatient sites, 225 outpatient sites in all. The 10 on this list hold 142 of it. The median hospital has 2 sites, so University of Iowa Health Care Medical Center is about 13 times that size.

of all outpatient sites at Iowa hospitals that report them
63%
the size of the median Iowa hospital, which has 2 sites
13×
of the 53 Iowa hospitals that report outpatient sites
19%

How we ranked the top Iowa hospitals

Measure
Outpatient sites linked to each hospital in the Dmand AI org hierarchy.
What counts as a hospital
One CMS certification number. A hospital with several campuses under one number counts once.
Field
53 Iowa hospitals in the Dmand AI database report outpatient sites.
Ties
Hospitals with the same number share a rank.
What a rank means
Size only. A rank compares outpatient sites; it says nothing about quality of care.
Refresh
Monthly. Updated Oct 28, 2026.

FAQ

Questions about the top Iowa hospitals

Answers from the same data, updated monthly.

Which Iowa hospital has the most outpatient sites?

University of Iowa Health Care Medical Center in Iowa City and MercyOne Waterloo Medical Center in Waterloo, with 26 sites.

What are the top 10 Iowa hospitals by outpatient sites?

University of Iowa Health Care Medical Center (26), MercyOne Waterloo Medical Center (26), MercyOne North Iowa Medical Center (15), MercyOne Genesis Davenport Medical Center (14), UnityPoint Health - St. Luke's Hospital - Cedar Rapids (14), UnityPoint Health - Iowa Methodist Medical Center (13), MercyOne Des Moines Medical Center (10), UnityPoint Health - Allen Hospital (9), Southeast Iowa Regional Medical Center, West Burlington (8), UnityPoint Health - St. Luke's (7).

How many outpatient sites does a typical Iowa hospital have?

The median Iowa hospital that reports outpatient sites has 2 sites, out of 53 that report them.

How often is this list updated?

Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.

More ranked lists

Every ranked list
  • Ranked list

    The 10 largest hospitals in the US by outpatient sites

    The national ranking by outpatient sites.

  • Insight

    EHR market share in Iowa

    Epic runs 43% of Iowa hospitals with an EHR on file.

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