Sleep study with CPAP cost in Walla Walla, WA
In Walla Walla, WA, 1 hospital lists a cash price for in-lab sleep study with CPAP or bilevel titration, age 6 and older: from $2,758.00 to $2,758.00, with a median of $2,758.00. Across Washington, the median is $3,250.00 at 21 hospitals.
Cash prices at 1 facility 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 Apr 1, 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 Walla Walla, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Providence St Mary Medical Center lowest Walla Walla, WA · (509) 522-5900 HC POLYSOMNOGRAPHY W/CPAP REDUCED | $2,758.00 | $3,940.00 | — | 30% | Apr 1, 2026 source file |
| Providence St Mary Medical Center Walla Walla, WA · (509) 522-5900 HC POLYSOMNOGRAPHY W/CPAP | $3,722.60 | $5,318.00 | — | 30% | Apr 1, 2026 source file |
| Providence St Mary Medical Center Walla Walla, WA · (509) 522-5900 HC POLYSOMNO-CPAP/BIPAP-1 ON 1 PT | $3,810.10 | $5,443.00 | — | 30% | Apr 1, 2026 source file |
Outpatient: lowest $2,758.00, median $2,758.00, highest $2,758.00.
As an inpatient, the same code is billed by 1 facility here, median $2,758.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
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.