Colonoscopy, diagnostic at Great Falls Clinic Hospital. CPT 45378.
What Great Falls Clinic Hospital publishes for this service, straight from its standard-charges file, last updated February 18, 2026.
Outpatient / ER
$2,453cash price (self-pay)
$2,515list price
$945–$2,127range insurers pay
| Insurance plan | Negotiated rate |
|---|---|
| Blue Cross Blue Shield of MT | Medicare Advantage | $945 |
| Humana | ChoiceCare Medicare Advantage | $945 |
| TriWest | TriWest | $945 |
| MT Automobile Dealers Association Ins | Commercial | $1,796 |
| Allegiance Benefit Plan | MACo/MMIA | $2,080 |
| Blue Cross Blue Shield of MT | MT State Employee | $2,127 |
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