Colonoscopy, diagnostic at OSF Healthcare Saint Katharine Medical Center. CPT 45378.
What OSF Healthcare Saint Katharine Medical Center publishes for this service, straight from its standard-charges file, last updated March 31, 2026.
Outpatient / ER
—cash price (self-pay)
—list price
$997–$3,952range insurers pay
| Insurance plan | Negotiated rate |
|---|---|
| Aetna | Medicare Managed Care Plan | $997 |
| UnitedHealthCare | All Commercial Plans | $3,952 |
Billed more than this?
Scan my billSnap a photo of your bill. We compare every line with these prices and coding rules, free.
All common services at OSF Healthcare Saint Katharine Medical Center