CMS Price Transparency Data

Colonoscopy (diagnostic)

Facility: Mackinac Straits Hospital and Health Center

Billing Code: 45378 (CPT)

The BaseRate · fair price medium confidence

A fair price for this

$566

about 0.6× the $950 Medicare rate · typically $201–$1,330

modeled estimate · not a bill or quote

What this hospital charges insurers

$272

Below the fair price — a good deal

about $294 under the fair price · 0.3× Medicare

Medicare pays $950 Fair price $566 This hospital $272 Cash price $522 Hospital's list price $870

How we calculate the fair BaseRate →

How this hospital compares to other MI hospitals

Highest price of the 9 MI hospitals we have prices for — worth calling around.

Cheapest $138 Priciest $272

Black dot = this hospital, among the 9 MI hospitals with a price for this procedure. Full list below.

A fair price for a Colonoscopy (diagnostic) is about $566 (about 0.6× the $950 Medicare rate). Mackinac Straits Hospital and Health Center charges insurers about $272, or about $522 in cash — below the fair price — a good deal. Located in Saint Ignace, MI.

What each insurance company pays

Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.

1 of 6 major insurers have a published price at this hospital

✓ Blue Cross Blue Shield UnitedHealthcareAetnaCignaHumanaKaiser Permanente

Crossed out = this hospital hasn’t published a negotiated price for that insurer for this procedure. It doesn’t necessarily mean they aren’t accepted — ask your insurer.

Insurance company	Price range	vs. Medicare
Blue Cross Blue Shieldmajor	$245 - $272	26%
+ 1 smaller / regional plan	$318

Self-Pay How to get the cash price

Tell the billing desk you want to be billed as self-pay — not through insurance — before your visit.
Ask for the cash / prompt-pay discount in writing, with the exact price (about 522), before you agree to anything.
Get it in writing that they won’t also bill your insurance, so the cash price is what you owe.
Check the CPT code on your bill matches exactly: 45378.

Insurance Before you use insurance

Call your insurance company to confirm Mackinac Straits Hospital and Health Center is in-network.
Ask your insurer whether prior approval is required for CPT code 45378.
Confirm the doctor or provider is in-network too — not just the hospital building.
Check your Explanation of Benefits against the hospital’s final itemized bill.

Estimate your out-of-pocket cost

A rough estimate of what you’d pay with insurance (deductible + coinsurance) versus paying the cash price yourself.

How you’d pay

Deductible left to meet ($)

Your coinsurance (%)

Enter your details and press estimate to compare.

Other Procedures at Mackinac Straits Hospital and Health Center

Compare: Colonoscopy (diagnostic) at other MI hospitals

Insurance negotiated median for the same procedure, sorted lowest first.