EEG cost in St. Louis, MO
In St. Louis, MO-IL, 6 hospitals list a cash price for EEG (brain wave test), awake and drowsy, routine: from $645.35 to $1,119.60, with a median of $1,028.30. The lowest listed price is at Gateway Regional Medical Center — $382.95 less than the median here. Across Missouri, the median is $686.81 at 18 hospitals.
Cash prices at 6 facilities across 5 cities for code 95816, 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 EEG AWAKE DROWSY | $645.35 | $1,075.58 | $1,075.58 | 40% | — source file |
| Mercy Hospital Jefferson Festus, MO Eeg W Awake and Drowsy Record | $917.80 | $1,412.00 | $91.78–$1,412.00 | 35% | — source file |
| Mercy Hospital Washington Washington, MO Eeg W Awake and Drowsy Record | $939.90 | $1,446.00 | $212.16–$270.34 | 35% | — source file |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Eeg W Awake and Drowsy Record | $1,116.70 | $1,718.00 | $212.16–$486.61 | 35% | — source file |
| Mercy Hospital St Louis Saint Louis, MO Eeg W Awake and Drowsy Record | $1,119.30 | $1,722.00 | $111.93–$1,722.00 | 35% | — source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL HC EEG AWAKE/DROWSY | $1,119.60 | $1,555.00 | $229.96–$1,555.00 | 28% | — source file |
Outpatient: lowest $645.35, median $1,028.30, highest $1,119.60 — a 1.7× difference within the same market.
As an inpatient, the same code is billed by 4 facilities here, median $1,006.38. 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 4 of 6 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
An EEG records the brain's electrical activity through small sensors on the scalp. It is used for seizures, fainting spells and some other brain problems.
What the price covers
The price usually covers the recording, which takes about 20 to 40 minutes plus setup. The neurologist's reading may be billed separately.