Sleep study with CPAP cost in St. Louis, MO
In St. Louis, MO-IL, 10 hospitals list a cash price for in-lab sleep study with CPAP or bilevel titration, age 6 and older: from $1,542.53 to $6,444.00, with a median of $4,693.65. The lowest listed price is at Gateway Regional Medical Center — $3,151.12 less than the median here. Across Missouri, the median is $1,926.05 at 22 hospitals.
Cash prices at 10 facilities across 9 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 — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Gateway Regional Medical Center lowest Granite City, IL · (618) 798-3000 POLYS-CPAP GT4 GE6YO | $1,542.53 | $2,570.88 | $2,570.88 | 40% | — source file |
| Mercy Hospital Jefferson Festus, MO Polysom Attended W Cpap/Bip 6/> Yrs <6hrs | $2,102.10 | $3,234.00 | $843.78–$1,935.28 | 35% | — source file |
| Mercy Hospital St Louis Saint Louis, MO Polysom Attended W Cpap/Bip 6/> Yrs <6hrs | $2,627.30 | $4,042.00 | $843.78–$1,935.28 | 35% | — source file |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC SLEEP STUDY W/CPAP | $3,701.52 | $5,141.00 | $719.35–$5,141.00 | 28% | — source file |
| Mercy Hospital St Louis Saint Louis, MO Polysom Attended W Cpap/Bip 6/> Yrs | $4,280.25 | $6,585.00 | $867.31–$2,158.11 | 35% | — source file |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Polysom Attended W Cpap 6/> Yrs | $4,669.60 | $7,184.00 | $1,214.23–$2,158.11 | 35% | — source file |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Polysom Attended W Cpap 6/> Yrs | $4,717.70 | $7,258.00 | $1,633.00–$2,708.00 | 35% | — source file |
| Mercy Hospital Jefferson Festus, MO Polysom Attended W Cpap/Bip 6/> Yrs | $4,766.45 | $7,333.00 | $867.31–$2,158.11 | 35% | — source file |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 HC SLEEP STUDY W/CPAP | $4,944.96 | $6,868.00 | $685.10–$6,868.00 | 28% | — source file |
| Mercy Hospital Washington Washington, MO Polysom Attended W Cpap/Bip 6/> Yrs | $5,328.70 | $8,198.00 | $867.31–$2,158.11 | 35% | — source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 HC SLEEP STUDY W/CPAP | $6,009.84 | $8,347.00 | $1,594.49–$8,347.00 | 28% | — source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL HC SLEEP STUDY W/CPAP | $6,444.00 | $8,950.00 | $685.10–$8,950.00 | 28% | — source file |
Outpatient: lowest $1,542.53, median $4,693.65, highest $6,444.00 — a 4.2× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $4,944.96. 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 5 of 10 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 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.