Colonoscopy, diagnostic at Mackinac Straits Health System. CPT 45378.
What Mackinac Straits Health System publishes for this service, straight from its standard-charges file, last updated July 22, 2026.
Outpatient / ER
$522cash price (self-pay)
$870list price
$245–$318range insurers pay
| Insurance plan | Negotiated rate |
|---|---|
| Blue Care Network - All Plans | Blue Care Network - All Plans | $245 |
| BCBS Mi - All Plans | BCBS Mi - All Plans | $272 |
| Mclaren Health Plan - All Plans | Mclaren Health Plan - All Plans | $318 |
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