Colonoscopy, diagnostic at Mark Twain Medical Center. CPT 45378.
What Mark Twain Medical Center publishes for this service, straight from its standard-charges file, last updated February 28, 2026.
Outpatient / ER
$427cash price (self-pay)
$641list price
$166–$628range insurers pay
| Insurance plan | Negotiated rate |
|---|---|
| Aetna | Medicare|All Plans | $166 |
| BCBS - Anthem | Medicare|All Plans | $166 |
| Blue Shield CA | Medicare|All Plans | $166 |
| Care 1st | Medicare|All Plans | $166 |
| Health Net | Medicare|All Plans | $166 |
| Humana | Medicare|All Plans | $166 |
| Kaiser | Medicare|All Plans | $166 |
| Scan Health Plan | Medicare|All Plans | $166 |
| United | Medicare|All Plans | $166 |
| BCBS - Anthem | Medicaid|All Plans | $339 |
| California Health & Wellness | Medicaid|All Plans | $339 |
| Health Net | Medicaid|All Plans | $339 |
| Health Plan of San Joaquin | Medicaid|All Plans | $339 |
| Kaiser | Medicaid|All Plans | $339 |
| BCBS - Anthem | Commercial|Exchange | $393 |
| United | Commercial|Select | $435 |
| Blue Shield CA | Commercial|Exchange | $463 |
| Blue Shield CA | Commercial|HMO | $463 |
| Blue Shield CA | Commercial|PPO | $463 |
| First Health | Commercial|All Plans | $481 |
| United | Commercial|Choice | $499 |
| BCBS - Anthem | Commercial|All Other Plans | $504 |
| Health Net | Commercial|All Plans | $515 |
| Aetna | Commercial|All Other Plans | $524 |
| Aetna | Commercial|HMO | $524 |
| Aetna | Commercial|PPO | $524 |
| Kaiser | Commercial|All Plans | $545 |
| Cigna | Commercial|All Other Plans | $574 |
| Cigna | Commercial|PPO | $574 |
| United | Commercial|HMO | $588 |
Inpatient
$427cash price (self-pay)
$641list price
$347–$628range insurers pay
| Insurance plan | Negotiated rate |
|---|---|
| BCBS - Anthem | Commercial|Exchange | $347 |
| United | Commercial|Select | $373 |
| Blue Shield CA | Commercial|Exchange | $410 |
| Blue Shield CA | Commercial|HMO | $410 |
| Blue Shield CA | Commercial|PPO | $410 |
| United | Commercial|Choice | $428 |
| BCBS - Anthem | Commercial|All Other Plans | $445 |
| Health Net | Commercial|All Plans | $479 |
| First Health | Commercial|All Plans | $481 |
| United | Commercial|HMO | $503 |
| Aetna | Commercial|All Other Plans | $524 |
| Aetna | Commercial|HMO | $524 |
| Aetna | Commercial|PPO | $524 |
| Kaiser | Commercial|All Plans | $545 |
| Cigna | Commercial|All Other Plans | $574 |
| Cigna | Commercial|PPO | $574 |
| Multiplan | Commercial|All Plans | $628 |
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