Hospital · Short-term acute hospital
Who owns Mercyone Waterloo Medical Center?
3421 West Ninth Street · Waterloo, IA · 50702
Overview
Mercyone Waterloo Medical Center is a short-term acute hospital in Waterloo, Iowa, operated by MercyOne. Black Hawk County has 3 hospitals, 12 nursing homes and 4 urgent care centers.
Ownership
Mercyone Waterloo Medical Center is operated by MercyOne, part of Trinity Health.
- Operator
- MercyOne
- Owner group
- Trinity Health
- Ownership type
- Church
- Sources
- CMS Hospital All Owners · 2026-09-29
- irs_schedule_h · 202506
- Company website · 2026-10-25
Ownership history
Every dated change of operator and owner for Mercyone Waterloo Medical Center, with the source for each.
Full ownership tree of Trinity Health
Every entity between this facility and its ultimate owner, with ownership percentages and dates.
Finances
From the hospital's Medicare cost report, fiscal year ending 2025.
| Net patient revenue | $371.1M |
| Operating expenses | $389.3M |
| Net income | $34.1M |
| Net income as a share of net patient revenue | 9.2% |
| Uncompensated care cost | $13.8M |
| Charity care cost | $8.5M |
| Medicaid net revenue | $115.8M |
| Medicare disproportionate share percentage | 24.0% |
Payer mix by inpatient days (2025)
- Commercial and other 67.1%
- Medicare 19.8%
- Medicaid 13.1%
Services
Top inpatient services, Medicare (2024)
| Service | Discharges | Average total payment |
|---|---|---|
| Septicemia or severe sepsis without MV >96 hours with MCC · 871 | 94 | $15K |
| Psychoses · 885 | 59 | $11K |
| Major hip and knee joint replacement or reattachment of lower extremity without MCC · 470 | 55 | $14K |
| Heart failure and shock with MCC · 291 | 41 | $10K |
| Percutaneous cardiovascular procedures with intraluminal device without MCC · 322 | 35 | $14K |
Top outpatient services, Medicare (2024)
| Service | Services |
|---|---|
| Level 1 Endovascular Procedures · 5191 | 196 |
| Level 2 Urology and Related Services · 5372 | 137 |
| Level 2 Excision/ Biopsy/ Incision and Drainage · 5072 | 122 |
| Level 1 Nerve Procedures · 5431 | 114 |
| Comprehensive Observation Services · 8011 | 114 |
Medicare fee-for-service only. Small counts are suppressed by CMS.
Location and market
- Address
- 3421 West Ninth Street · Waterloo, IA · 50702
- County
- Black Hawk County
- State
- Iowa
4 off-site locations
Campuses, off-site emergency departments and outpatient departments under this hospital's certification.
Nearby hospitals
| Name | City | Distance |
|---|---|---|
| Allen Hospital | Waterloo | 4.3 mi |
| Sartori Memorial Hospital, Inc | Cedar Falls | 7.4 mi |
| Waverly Health Center | Waverly | 19.3 mi |
| Mental Health Institute | Independence | 21.7 mi |
| Buchanan County Health Center | Independence | 22.0 mi |
| Grundy County Memorial Hospital | Grundy Center | 22.5 mi |
Sources and identifiers
- Operator: CMS Hospital All Owners · irs_schedule_h · Company website
- Finances and payer mix: CMS hospital cost reports (HCRIS), fiscal year 2025
- Services: CMS Medicare inpatient and outpatient utilization
- Ownership type and beds: CMS Provider of Services file
- Location: CMS and Census Bureau geography
- CMS certification number
- 160067
- NPI
- 1700827896
- Last confirmed
- 2026-10-23
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