615 New Ballas Road, Saint Louis, MO, 63141 · (314) 251-6000
Beds
782
FY 2025
Star rating
4 of 5
Patient survey: 3 of 5
Net patient revenue
$1.57B
FY 2025
Net income
$188.9M
Patient care margin 10.2%
Discharges
49,752
Occupancy 80.3%
Clinicians
1,986
From the hospital's yearly cost reports (fiscal years as the hospital reports them)
Locations are shown at the center of the ZIP code.
US dollars as reported. Patient care margin = net patient revenue minus operating expenses, before other income such as grants, donations and investments.
| Fiscal year | Net patient revenue | Operating expenses | Patient care margin | Net income | Discharges | Uncompensated care | Medicare days | Medicaid days |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1.57B | $1.41B | 10.2% | $188.9M | 49,752 | $41.6M | 15.7% | 6.6% |
Official hospital quality measures with the national median across hospitals. For ratios, 1.00 means as many cases as expected.
| Death rate after heart bypass surgery | 3.1% | US median 2.3% |
| Death rate for COPD patients | 8.8% | US median 8.5% |
| Death rate for heart attack patients | 11.8% | US median 11.8% |
| Death rate for heart failure patients | 7.7% | US median 11% |
| Hospital-wide death rate within 30 days | 2.7% | US median 3.9% |
| Death rate for pneumonia patients | 11.8% | US median 15.2% |
| Death rate for stroke patients |
Medicare clinicians who list this hospital, by specialty
Inpatient stays by diagnosis related group (DRG), 2024
Official US government data: hospital records, ownership records, yearly cost reports and quality measures, linked by the hospital's CCN and NPI. Financials are for fiscal years as reported by the hospital.
Medicare clinicians who work here
| 2024 | $1.52B | $1.29B | 15.3% | $257.4M | 41,827 | $36.6M | 16.4% | 6.9% |
| 2023 | $1.39B | $1.20B | 13.5% | $236.9M | 40,021 | $33.4M | 17.3% | 7.9% |
| 2022 | $1.29B | $1.10B | 14.5% | $214.8M | 37,171 | $37.5M | 17.5% | 9.2% |
| 2021 | $1.29B | $1.07B | 17.1% | $259.0M | 37,800 | $40.7M | 18.5% | 8.9% |
| 2020 | $1.15B | $1.01B | 12.0% | $202.3M | 35,957 | $49.0M | 17.9% | 9.4% |
| 9.3% |
| US median 11.6% |
| Readmission rate after heart bypass surgery | 11.4% | US median 10.9% |
| Readmission rate for COPD | 20.1% | US median 19.8% |
| Readmission rate after a heart attack | 16% | US median 14.4% |
| Readmission rate for heart failure | 23.7% | US median 21.3% |
| Readmission rate after hip or knee replacement | 7.2% | US median 5.8% |
| Readmission rate for pneumonia | 18.8% | US median 17.2% |
| Complications after hip or knee replacement | 2.7% | US median 4.1% |
| Serious complications (patient safety composite) | 0.89 | US median 0.96 |
| C. diff intestinal infections (ratio to expected) | 0.17 | US median 0.28 · better |
| Central line bloodstream infections (ratio to expected) | 0.31 | US median 0.48 · better |
| Surgical site infections after colon surgery (ratio to expected) | 0.83 | US median 0.72 |
| Surgical site infections after hysterectomy (ratio to expected) | 0.50 | US median 0.81 |
| MRSA bloodstream infections (ratio to expected) | 0.86 | US median 0.60 |
| Catheter urinary tract infections (ratio to expected) | 0.56 | US median 0.40 · better |
| Doctors always communicated well | 77% | US median 79% |
| Nurses always communicated well | 78% | US median 80% |
| Patient survey summary star rating | 3 of 5 | US median 3 of 5 |
| Area around the room always quiet at night | 58% | US median 59% |
| Patients who rated the hospital 9 or 10 out of 10 | 73% | US median 72% |
| Room and bathroom always clean | 55% | US median 73% |
| Patients who would definitely recommend the hospital | 78% | US median 71% |
| Patients who left the emergency department before being seen | 4% | US median 1% |
| Median time in the emergency department before leaving (minutes) | 220 min | US median 148 min |
| Patients prescribed 2 or more opioids or opioids with benzodiazepines at discharge | 17% | US median 15% |
| Patients who got appropriate care for severe sepsis and septic shock | 74% | US median 65% |
| Healthcare workers given the flu vaccine | 94% | US median 79% |
| Stroke patients who got a brain scan within 45 minutes of arrival | 67% | US median 74% |
| 208 |
| $51,390.37 |
| $11,261.16 |
| $12,667.88 |
| DRG 690 KIDNEY AND URINARY TRACT INFECTIONS WITHOUT MCC | 151 | $22,633.46 | $5,366.74 | $5,985.69 |
| DRG 885 PSYCHOSES | 142 | $18,825.48 | $9,518.06 | $11,869.17 |
| DRG 392 ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITHOUT MCC | 130 | $25,388.91 | $5,114.03 | $5,662.18 |
| DRG 689 KIDNEY AND URINARY TRACT INFECTIONS WITH MCC | 118 | $31,020.31 | $7,799.30 | $8,838.11 |
| DRG 552 MEDICAL BACK PROBLEMS WITHOUT MCC | 111 | $30,634.14 | $6,160.41 | $7,114.44 |
| DRG 682 RENAL FAILURE WITH MCC | 95 | $47,292.66 | $10,766.41 | $11,457.18 |
| DRG 193 SIMPLE PNEUMONIA AND PLEURISY WITH MCC | 90 | $38,410.99 | $8,466.31 | $9,867.73 |
| DRG 603 CELLULITIS WITHOUT MCC | 87 | $21,382.85 | $5,552.09 | $6,446.25 |
| DRG 640 MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITH MCC | 85 | $39,228.82 | $9,038.42 | $10,642.23 |
| DRG 683 RENAL FAILURE WITH CC | 85 | $28,814.53 | $5,897.69 | $6,629.69 |
| DRG 853 INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURES WITH MCC | 83 | $146,426.49 | $32,726.30 | $40,556.82 |
| DRG 064 INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH MCC | 80 | $73,067.75 | $13,926.74 | $15,695.20 |
Hospital outpatient services by payment group (APC), 2024
| Service group | Services | Patients | Medicare pays per service | All hospitals |
|---|---|---|---|---|
| APC 8011 Comprehensive Observation Services | 568 | 551 | $1,885.71 | $2,090.36 |
| APC 5115 Level 5 Musculoskeletal Procedures | 340 | 325 | $9,800.44 | $10,771.69 |
| APC 5072 Level 2 Excision/ Biopsy/ Incision and Drainage | 326 | 314 | $1,120.56 | $1,219.56 |
| APC 5491 Level 1 Intraocular Procedures | 292 | 162 | $1,610.13 | $1,751.67 |
| APC 5302 Level 2 Upper GI Procedures | 292 | 268 | $1,338.19 | $1,444.50 |
| APC 5191 Level 1 Endovascular Procedures | 285 | 282 | $2,046.54 | $2,207.96 |
| APC 5373 Level 3 Urology and Related Services | 216 | 169 | $1,418.30 | $1,516.28 |
| APC 5183 Level 3 Vascular Procedures | 178 | 168 | $2,228.25 | $2,405.01 |
| APC 5114 Level 4 Musculoskeletal Procedures | 176 | 174 | $4,900.56 | $5,338.75 |
| APC 5374 Level 4 Urology and Related Services | 167 | 138 | $2,374.34 | $2,629.24 |
| APC 5361 Level 1 Laparoscopy and Related Services | 167 | 163 | $4,068.11 | $4,357.80 |
| APC 5375 Level 5 Urology and Related Services | 153 | 147 | $3,599.51 | $3,917.51 |
Reported payments to this teaching hospital
| Company | Payments | Amount |
|---|---|---|
| Prenosis Inc. | 16 | $121K |
| Intuitive Surgical, Inc. ISRG | 8 | $91K |
| MED-EL Corporation | 1 | $9,090 |
| E.R. Squibb & Sons, L.L.C. BMY | 1 | $2,625 |
| AstraZeneca Pharmaceuticals LP AZN | 1 | $2,500 |
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 1 | $1,500 |
| Pinnacle Biologics, Inc | 3 | $825 |
| Abbott Laboratories ABT | 2 | $595 |
| Stryker Corporation SYK | 1 | $129 |
| Zimmer Biomet Holdings, Inc. ZBH | 1 | $87.95 |
Official US government data on Original Medicare hospital stays and outpatient services; groups with fewer than 11 cases are not published. Payments are those drug and device companies must report.
Mercy Hospital St Louis is a nonprofit short-term acute care hospital in Saint Louis, MO with 782 beds, part of Mercy and a 4-star overall rating.
Mercy Hospital St Louis in Saint Louis, MO has 782 beds (fiscal year 2025 cost report); 859 beds are certified for Medicare. It discharged 49,752 inpatients that year, with 80.3% of its beds in use on average.
In fiscal year 2025 (ending 2025-06-30), Mercy Hospital St Louis reported net patient revenue of $1.57B and operating expenses of $1.41B, a margin on patient care of 10.2%. After other income and expenses its net income was $188.9M (11.8% of revenue), so it made a profit that year.
Mercy Hospital St Louis is part of Mercy, a health system with 38 hospitals based in Oklahoma City, OK. It is a nonprofit hospital.
Mercy Hospital St Louis has an overall rating of 4 out of 5 stars in the official hospital quality ratings. Patients rate it 3 out of 5 stars in the patient survey. 3 death rate measures are better and 0 worse than the national rate.
Yes, Mercy Hospital St Louis provides emergency services.
1,986 Medicare clinicians list Mercy Hospital St Louis as a hospital they work at, most often in Internal Medicine, Nurse Practitioner, Family Practice.
In 2024, Mercy Hospital St Louis had 6,014 Medicare inpatient stays in 164 diagnosis groups. The most common was DRG 871 (septicemia or severe sepsis without mv >96 hours with mcc) with 413 stays; Medicare paid $13,418.68 per stay on average, compared with $15,524.21 across all hospitals.
In 2025, companies reported $230K in payments to Mercy Hospital St Louis as a teaching hospital ($106K general and $124K for research) from 10 companies.