Sleep study with CPAP cost in Seattle, WA
In Seattle-Tacoma-Bellevue, WA, 14 hospitals list a cash price for in-lab sleep study with CPAP or bilevel titration, age 6 and older: from $1,233.40 to $5,522.40, with a median of $3,190.81. The lowest listed price is at Valley Medical Center — $1,957.41 less than the median here. Across Washington, the median is $3,521.86 at 32 hospitals.
- The median here, $3,190.81, is about the same as the US median of $3,202.41.
- That is 3.6× Medicare's 2026 national rate for the same service ($877.34).
- 1 of 14 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 14 facilities across 10 cities for code 95811, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 11, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Sep 30, 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 Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Valley Medical Center lowest Renton, WA · (425) 228-3450 Polysom 6/>Yrs Sleep W/Cpap 4/> Addl Param Attnd File of Mar 12, 2026 · source file | $1,233.40 | $1,762.00 | — | 30% |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 POLYSOM,6+ YO,4 OR MORE ADDL PARAMETERS W/CONTINUOUS POS AI File of Jan 1, 2026 · source file | $1,911.48 | $3,748.00 | $2,248.80–$2,998.40 | 49% |
| Swedish Medical Center Seattle, WA · (206) 386-6000 HC POLYSOMNOGRAPHY W/CPAP File of Apr 1, 2026 · source file | $1,946.40 | $4,055.00 | — | 52% |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC POLYSOMNOGRAPHY W/CPAP File of Apr 1, 2026 · source file | $1,946.40 | $4,055.00 | — | 52% |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC POLYSOMNOGRAPHY W/CPAP File of Apr 1, 2026 · source file | $1,946.40 | $4,055.00 | — | 52% |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC POLYSOMNOGRAPHY W/CPAP REDUCED+1 more line at this price File of Apr 1, 2026 · source file | $2,163.20 | $4,160.00 | — | 48% |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Sleep Study W/ Intervent Limited File of Mar 31, 2026 · source file | $2,682.70 | $2,682.70 | $572.97–$2,575.39 | — |
| Saint Clare Hospital Lakewood, WA · (253) 588-1711 HC SLEEP STUDY STAGING W/CPAP File of Sep 30, 2026 · source file | $3,698.91 | $12,825.61 | $1,002.20–$9,619.21 | 71% |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC SLEEP STUDY STAGING W/CPAP File of Sep 30, 2026 · source file | $3,900.27 | $12,825.61 | $1,002.20–$9,619.21 | 70% |
| Highline Medical Center Burien, WA · (206) 431-5237 HC SLEEP STUDY STAGING W/CPAP File of Sep 30, 2026 · source file | $3,904.12 | $12,825.61 | $997.20–$11,543.05 | 70% |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC SLEEP STUDY STAGING W/CPAP File of Sep 30, 2026 · source file | $3,943.88 | $12,825.61 | $997.20–$9,619.21 | 69% |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC SLEEP STUDY STAGING W/CPAP File of Feb 28, 2026 · source file | $4,084.44 | $12,332.32 | $1,153.15–$9,249.24 | 67% |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC POLYSOMNOGRAPHY W/CPAP File of Apr 1, 2026 · source file | $4,476.48 | $9,326.00 | — | 52% |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC POLYSOMNOGRAPHY W/CPAP File of Apr 1, 2026 · source file | $4,476.48 | $9,326.00 | — | 52% |
| Swedish Medical Center Seattle, WA · (206) 386-6000 HC POLYSOMNOGRAPHY W/CPAP File of Apr 1, 2026 · source file | $4,476.48 | $9,326.00 | — | 52% |
| St Elizabeth Hospital Enumclaw, WA · (360) 825-2505 HC SLEEP STUDY STAGING W/CPAP File of Sep 30, 2026 · source file | $4,709.57 | $12,825.61 | $2,052.10–$11,543.05 | 63% |
| Kaiser Permanente Central Hospital Seattle, WA · (206) 326-3000 POLYSOMNOGRAPHY SLEEP STAGING W/ 4+ PARA/CPAP File of Apr 1, 2026 · source file | $5,522.40 | $6,903.00 | — | 20% |
| Valley Medical Center Renton, WA · (425) 228-3450 Polysom 6/>Yrs Sleep W/Cpap 4/> Addl Param Attnd File of Mar 12, 2026 · source file | $6,422.50 | $9,175.00 | — | 30% |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Sleep Study W/Intervention File of Mar 31, 2026 · source file | $9,259.20 | $9,259.20 | $2,333.32–$8,888.83 | — |
Outpatient: lowest $1,233.40, median $3,190.81, highest $5,522.40 — a 4.5× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $3,924.00. 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 7 of 8 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. 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 sleep study with CPAP is, what the price covers and why prices differ: Sleep study with CPAP explained.