BUN kidney test in Wisconsin
Below is what hospitals in Wisconsin charge if you pay cash, and the typical rate insurers negotiated.
Cash prices at 30 hospitals in Wisconsin run from $11 to $94. The typical hospital charges $25. Where a hospital sits on this scale matters more than the number alone:
typical: $25
Cheaper than most hospitalsPricier than most hospitals
31 hospitals. Sort by: Cash price ▲ · Negotiated median · Gross charge · Negotiated low
What these numbers mean.
Cash price is what the hospital lists for patients paying out of pocket.
Negotiated median is the middle of what insurance companies actually agreed to pay.
Gross charge is the sticker price — almost nobody pays it.
What you will actually pay is usually different from both numbers:
with insurance, your deductible, copay, or coinsurance decides what you owe —
the negotiated rate is what the insurer pays, not your bill.
A single line item may not be the whole cost: physician, anesthesia, pathology,
and facility fees can be billed separately.
Prices vary by hospital and change over time; always confirm with the hospital before you go.
| Hospital | Cash price | Where it sits | Insurance pays (typical) | Gross charge |
|---|---|---|---|---|
| Ascension NE Wisconsin - St. Elizabeth Campus WI | $11Insurance typically pays $5Sticker price $19 | Lowest price of any hospital | $5 | $19 |
| Ascension NE Wisconsin - Mercy Campus WI | $11Insurance typically pays $5Sticker price $19 | Lowest price of any hospital | $5 | $19 |
| Ascension Calumet Hospital WI | $16Insurance typically pays $6Sticker price $28 | Cheaper than 93% of hospitals | $6 | $28 |
| Grant Regional Health Center WI · Price file September 18, 2026 | $17Insurance typically pays $19Sticker price $26 | Cheaper than 90% of hospitals | $19 | $26 |
| Ascension SE Wisconsin Hospital - St. Joseph Campus WI | $19Insurance typically pays $6Sticker price $36 | Cheaper than 86% of hospitals | $6 | $36 |
| Ascension SE Wisconsin Hospital - Franklin Campus WI | $19Insurance typically pays $6Sticker price $36 | Cheaper than 86% of hospitals | $6 | $36 |
| Ascension SE Wisconsin Hospital - Elmbrook Campus WI | $19Insurance typically pays $6Sticker price $36 | Cheaper than 86% of hospitals | $6 | $36 |
| Ascension St. Francis Hospital WI | $19Insurance typically pays $6Sticker price $36 | Cheaper than 86% of hospitals | $6 | $36 |
| Midwest Orthopedic Specialty Hospital WI | $19Insurance typically pays $6Sticker price $36 | Cheaper than 86% of hospitals | $6 | $36 |
| St Croix Regional Medical Center WI | $19Insurance typically pays $14Sticker price $35 | Cheaper than 69% of hospitals | $14 | $35 |
| River Falls Area Hospital WI · Price file June 16, 2026 | $23Insurance typically pays —Sticker price $42 | Cheaper than 66% of hospitals | — | $42 |
| Aurora Medical Center WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Psychiatric Hospital WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Center Sheboygan County WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Ctr Kenosha WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Ctr Manitowoc County WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Ctr Oshkosh WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Ctr Washington County WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Center Bay Area WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Lakeland Medical Center WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Center Burlington WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora Medical Center Summit WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora West Allis Medical Center WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Aurora St Lukes Medical Center WI · Price file November 4, 2026 | $25Insurance typically pays $12Sticker price $50 | Cheaper than 62% of hospitals | $12 | $50 |
| Orthopaedic Hospital of Wisconsin WI | $25Insurance typically pays $6Sticker price $48 | Pricier than 83% of hospitals | $6 | $48 |
| Unitypoint Health - Meriter WI · Price file November 4, 2026 | $34Insurance typically pays $5Sticker price $42 | Pricier than 86% of hospitals | $5 | $42 |
| Ascension Columbia St. Mary's Hospital Ozaukee WI | $40Insurance typically pays $8Sticker price $75 | Pricier than 90% of hospitals | $8 | $75 |
| Ascension Columbia St. Mary's Hospital Milwaukee (incl Columbia St. Mary's Women's Hosp.) WI | $40Insurance typically pays $8Sticker price $75 | Pricier than 90% of hospitals | $8 | $75 |
| Stoughton Hospital WI · Price file June 11, 2026 | $50Insurance typically pays $27Sticker price $90 | Pricier than 97% of hospitals | $27 | $90 |
| Crossing Rivers Health Medical Center WI · Price file October 22, 2026 | $94Insurance typically pays $89Sticker price $94 | Highest price of any hospital | $89 | $94 |
| Ascension Sacred Heart Rehabilitation Hospital WI | —Insurance typically pays $8Sticker price — | — | $8 | — |
Procedure code 84520. Prices are from each hospital's own published price file — see methodology.