Sleep study with CPAP cost in Madison, WI
In Madison, WI, 2 hospitals list a cash price for in-lab sleep study with CPAP or bilevel titration, age 6 and older: from $2,132.80 to $3,665.35, with a median of $2,899.08. The lowest listed price is at UnityPoint Health - Meriter — $766.28 less than the median here. Across Wisconsin, the median is $3,385.00 at 61 hospitals.
Cash prices at 2 facilities across 2 cities for code 95811, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 28, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Madison, WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| UnityPoint Health - Meriter lowest Madison, WI · (608) 417-6210 PR POLYSOM 6/>YRS SLEEP W/CPAP 4/> ADDL PARAM ATTND | $2,132.80 | $2,666.00 | $608.18–$2,609.09 | 20% | Jan 28, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI · (608) 742-4131 Fac Polysomnography W/Cpap | $3,665.35 | $5,639.00 | — | 35% | Apr 1, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI · (608) 742-4131 POLYSOM 6/>YRS SLEEP W/CPAP 4/> ADDL PARAM ATTND | $4,607.20 | $7,088.00 | — | 35% | Apr 1, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI · (608) 742-4131 Pro Polysomnography W/Cpap | $4,607.20 | $7,088.00 | — | 35% | Apr 1, 2026 source file |
Outpatient: lowest $2,132.80, median $2,899.08, highest $3,665.35 — a 1.7× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $2,899.08. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This is an overnight sleep study at a sleep center where a technologist records brain waves, breathing, oxygen and heart rhythm and starts CPAP or bilevel therapy to find the right pressure. It is used both for a full night of CPAP adjustment and for a split-night study that starts as a diagnostic study.
What the price covers
The hospital price usually covers the overnight study and the technologist. The sleep physician's interpretation is often billed separately, and the CPAP machine itself is bought separately.