ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE
MILWAUKEE, WI 53211 · Acute Care Hospitals
54 procedures with CMS pricing data · Source: CMS IPPS Provider Summary, FY2024
By BillRazor Research · Last updated March 27, 2026 · Methodology
Procedures Analyzed
54
With CMS pricing data
Avg Charge-to-Medicare Ratio
4.9x
Chargemaster ÷ Medicare
CMS Quality Rating
Patient experience & outcomes
Hospital Type
Acute Care Hospitals
Voluntary non-profit - Church
Above 90th Percentile
0%
Compared to WI hospitals
Understanding Your Costs
When you receive a bill from ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE, you are typically seeing the hospital's “chargemaster” rate — its published list price for each service. According to CMS data, ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE lists chargemaster rates that average 4.9x the corresponding Medicare reimbursement amount across 54 procedures with publicly available pricing data (Source: CMS IPPS Provider Summary, FY2024).
The median hospital in WI has a chargemaster-to-Medicare ratio of 4.1x, with ratios across the state ranging from 1.4x to 7.3x. At 4.9x, this facility’s average ratio is above the state median. 63 hospitals in WI report pricing data to CMS (Source: CMS IPPS Provider Summary).
The procedure with the largest gap between the listed price and Medicare reimbursement at ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE is PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH DRUG-ELUTING STENT WITHOUT MCC (DRG 247). The listed chargemaster rate is $109,070, while Medicare reimburses $14,031 for the same procedure — a ratio of 7.8x (Source: CMS IPPS Provider Summary, FY2024).
What does this actually mean for your bill? Chargemaster rates are rarely what patients pay. If you have insurance, your insurer has negotiated a separate rate — often 40–60% less than the listed price. If you are uninsured, you may be able to negotiate directly with the hospital or request financial assistance. The chargemaster-to-Medicare ratio is a useful reference point for understanding listed pricing, but it does not represent what most patients will owe out of pocket.
ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE is a voluntary non-profit - church acute care hospitals facility with a CMS quality rating of 2/5 stars. Note: CMS quality ratings measure patient outcomes and experience, not pricing. A hospital with high listed prices may provide excellent care, and pricing data alone should not be used to evaluate the quality of a healthcare provider.
Listed Chargemaster Rates vs Medicare Reimbursement — Top Procedures by Ratio
Source: CMS IPPS Provider Summary, FY2024. Chargemaster rates are list prices and may not reflect actual patient costs.
Procedure Pricing Lookup
Search for a specific procedure or DRG code to see listed chargemaster rates and Medicare reimbursement amounts.
| Procedure | DRG | Listed Charge | Medicare Reimb. | Ratio | State Position | |
|---|---|---|---|---|---|---|
| PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH DRUG-ELUTING STENT WITHOUT MCC | 247 | $109,070 | $14,031 | 7.8x | 1th | Compare your bill |
| RESPIRATORY SYSTEM DIAGNOSIS WITH VENTILATOR SUPPORT <=96 HOURS | 208 | $163,859 | $21,106 | 7.8x | 1th | Compare your bill |
| DEGENERATIVE NERVOUS SYSTEM DISORDERS WITHOUT MCC | 057 | $53,706 | $7,591 | 7.1x | 1th | Compare your bill |
| ACUTE MYOCARDIAL INFARCTION, DISCHARGED ALIVE WITH CC | 281 | $43,457 | $6,433 | 6.8x | 1th | Compare your bill |
| INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH CC OR TPA IN 24 HOURS | 065 | $49,671 | $7,484 | 6.6x | 1th | Compare your bill |
| PULMONARY EMBOLISM WITH MCC OR ACUTE COR PULMONALE | 175 | $53,718 | $9,054 | 5.9x | 1th | Compare your bill |
| MAJOR CHEST PROCEDURES WITH CC | 164 | $106,609 | $18,138 | 5.9x | 1th | Compare your bill |
| SYNCOPE AND COLLAPSE | 312 | $36,516 | $6,446 | 5.7x | 1th | Compare your bill |
| OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH MCC | 698 | $68,012 | $12,235 | 5.6x | 1th | Compare your bill |
| SIMPLE PNEUMONIA AND PLEURISY WITH MCC | 193 | $51,556 | $9,379 | 5.5x | 1th | Compare your bill |
| RED BLOOD CELL DISORDERS WITH MCC | 811 | $58,272 | $10,703 | 5.4x | 1th | Compare your bill |
| OTHER MAJOR CARDIOVASCULAR PROCEDURES WITH MCC | 270 | $217,610 | $40,471 | 5.4x | 1th | Compare your bill |
| MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITH MCC | 640 | $47,491 | $9,154 | 5.2x | 1th | Compare your bill |
| KIDNEY AND URINARY TRACT INFECTIONS WITHOUT MCC | 690 | $29,531 | $5,688 | 5.2x | 1th | Compare your bill |
| SEIZURES WITHOUT MCC | 101 | $32,399 | $6,401 | 5.1x | 0th | Compare your bill |
| CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH MCC | 308 | $45,662 | $9,032 | 5.1x | 1th | Compare your bill |
| KIDNEY AND URINARY TRACT INFECTIONS WITH MCC | 689 | $43,368 | $8,590 | 5.0x | 1th | Compare your bill |
| GASTROINTESTINAL HEMORRHAGE WITH CC | 378 | $35,023 | $6,939 | 5.0x | 0th | Compare your bill |
| HEART FAILURE AND SHOCK WITH MCC | 291 | $49,313 | $9,796 | 5.0x | 1th | Compare your bill |
| RENAL FAILURE WITH CC | 683 | $31,587 | $6,298 | 5.0x | 1th | Compare your bill |
| PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH DRUG-ELUTING STENT WITH MCC OR 4+ ARTERIES O | 246 | $116,090 | $23,221 | 5.0x | 0th | Compare your bill |
| GASTROINTESTINAL OBSTRUCTION WITH CC | 389 | $29,708 | $5,970 | 5.0x | 0th | Compare your bill |
| ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITH MCC | 391 | $38,498 | $7,747 | 5.0x | 0th | Compare your bill |
| CELLULITIS WITHOUT MCC | 603 | $30,348 | $6,150 | 4.9x | 1th | Compare your bill |
| SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC | 872 | $37,158 | $7,551 | 4.9x | 0th | Compare your bill |
| INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH MCC | 064 | $72,167 | $14,785 | 4.9x | 1th | Compare your bill |
| OTHER CIRCULATORY SYSTEM DIAGNOSES WITH MCC | 314 | $74,425 | $15,373 | 4.8x | 0th | Compare your bill |
| ACUTE MYOCARDIAL INFARCTION, DISCHARGED ALIVE WITH MCC | 280 | $58,801 | $12,170 | 4.8x | 1th | Compare your bill |
| MAJOR SMALL AND LARGE BOWEL PROCEDURES WITH CC | 330 | $89,978 | $18,824 | 4.8x | 0th | Compare your bill |
| PULMONARY EDEMA AND RESPIRATORY FAILURE | 189 | $45,316 | $9,504 | 4.8x | 1th | Compare your bill |
| ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITHOUT MCC | 392 | $27,491 | $5,856 | 4.7x | 0th | Compare your bill |
| GASTROINTESTINAL HEMORRHAGE WITH MCC | 377 | $59,712 | $12,826 | 4.7x | 0th | Compare your bill |
| CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITHOUT CC/MCC | 310 | $17,897 | $3,881 | 4.6x | 0th | Compare your bill |
| CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH CC | 309 | $25,931 | $5,667 | 4.6x | 0th | Compare your bill |
| CORONARY BYPASS WITHOUT CARDIAC CATHETERIZATION WITHOUT MCC | 236 | $138,185 | $30,214 | 4.6x | 0th | Compare your bill |
| SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC | 871 | $69,264 | $15,263 | 4.5x | 1th | Compare your bill |
| GASTROINTESTINAL OBSTRUCTION WITHOUT CC/MCC | 390 | $17,945 | $3,973 | 4.5x | 0th | Compare your bill |
| MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITHOUT MCC | 641 | $26,598 | $5,912 | 4.5x | 0th | Compare your bill |
| HIP AND FEMUR PROCEDURES EXCEPT MAJOR JOINT WITH CC | 481 | $70,552 | $16,017 | 4.4x | 0th | Compare your bill |
| PERCUTANEOUS AND OTHER INTRACARDIAC PROCEDURES WITHOUT MCC | 274 | $112,706 | $25,667 | 4.4x | 0th | Compare your bill |
| INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURES WITH MCC | 853 | $164,324 | $38,937 | 4.2x | 0th | Compare your bill |
| KIDNEY AND URETER PROCEDURES FOR NON-NEOPLASM WITH CC | 660 | $41,319 | $9,884 | 4.2x | 0th | Compare your bill |
| HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITHOUT MCC | 522 | $63,358 | $15,698 | 4.0x | 0th | Compare your bill |
| ENDOVASCULAR CARDIAC VALVE REPLACEMENT AND SUPPLEMENT PROCEDURES WITH MCC | 266 | $197,944 | $49,166 | 4.0x | 0th | Compare your bill |
| DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITH CC | 439 | $26,528 | $6,666 | 4.0x | 0th | Compare your bill |
| RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH CC | 178 | $33,903 | $8,670 | 3.9x | 0th | Compare your bill |
| RENAL FAILURE WITH MCC | 682 | $44,603 | $11,427 | 3.9x | 0th | Compare your bill |
| OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH CC | 699 | $28,814 | $7,729 | 3.7x | 0th | Compare your bill |
| HIP AND FEMUR PROCEDURES EXCEPT MAJOR JOINT WITH MCC | 480 | $88,856 | $23,809 | 3.7x | 0th | Compare your bill |
| RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH MCC | 177 | $50,621 | $13,824 | 3.7x | 0th | Compare your bill |
Showing 50 of 54 procedures
All data from CMS IPPS Provider Summary, FY2024. Chargemaster rates are list prices and may not reflect actual patient costs.
Statewide Context
Charge-to-Medicare ratio range across WI hospitals
63 hospitals in WI report pricing data to CMS. This facility's average ratio of 4.9x places it at the upper-middle range of the state range (Source: CMS IPPS Provider Summary).
What You Can Do
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How it worksData: CMS Inpatient Prospective Payment System (IPPS) Provider Summary, FY2024. All data is publicly available under federal law (45 CFR Part 180).
Important: Listed chargemaster rates are not what most insured patients pay. Actual costs depend on your insurance plan's negotiated rates, deductibles, and coverage terms. This information is for educational purposes only and does not constitute medical, legal, or financial advice.
Frequently Asked Questions About ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE
How much does ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE charge compared to Medicare?
According to CMS IPPS data, ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE's listed chargemaster rates average 4.9x the Medicare reimbursement amount across 54 procedures. Chargemaster rates are list prices and are not what most insured patients pay — actual costs depend on insurance negotiations and coverage terms.
What is the most expensive procedure at ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE?
The procedure with the highest chargemaster-to-Medicare ratio at ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE is PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH DRUG-ELUTING STENT WITHOUT MCC (DRG 247), with a listed charge of $109,070 compared to Medicare reimbursement of $14,031 — a ratio of 7.8x. Source: CMS IPPS Provider Summary.
Is ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE expensive compared to other WI hospitals?
ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE's average chargemaster-to-Medicare ratio is 4.9x. Ratios vary significantly across WI hospitals. This ratio reflects listed chargemaster prices, not what patients actually pay. CMS quality ratings, which measure patient outcomes and experience, are separate from pricing data.
Where does the pricing data for ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE come from?
All pricing data comes from the Centers for Medicare & Medicaid Services (CMS) Inpatient Prospective Payment System (IPPS) Provider Summary, published under federal price transparency law (45 CFR Part 180). This data is publicly available and updated annually.
How can I check if my bill from ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE is correct?
You can upload your bill to BillRazor for a free comparison against publicly available Medicare reimbursement data. Our system analyzes every line item in 60 seconds. Research suggests 49-80% of hospital bills contain errors, including duplicate charges, incorrect procedure codes, and unbundling.
Does ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE in MILWAUKEE, WI accept Medicare?
ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE is included in the CMS IPPS Provider Summary, which covers Medicare-participating hospitals. For specific coverage questions, contact ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE directly or check with your insurance provider.
Data sourced from CMS IPPS Provider Summary, FY2024. All information is for educational purposes only.