CMS Price Transparency Data

Colonoscopy (diagnostic)

Facility: Marshfield Medical Center

Billing Code: 45378 (CPT)

The BaseRate · fair price high confidence

A fair price for this

$1,780

about 1.9× the $950 Medicare rate · typically $1,250–$2,608

modeled estimate · not a bill or quote

Medicare pays $950 Fair price $1,780 Cash price $1,469 Hospital's list price $1,546

How we calculate the fair BaseRate →

What each insurance company pays

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

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

✓ UnitedHealthcare✓ Blue Cross Blue Shield✓ Aetna✓ Cigna HumanaKaiser 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
UnitedHealthcaremajor	$1,407	148%
Blue Cross Blue Shieldmajor	$892 - $3,163	94%
Aetnamajor	$1,484	156%
Cignamajor	$1,453	153%
HealthPartners	$1,469	155%
Medica	$1,435 - $1,464	151%
Molina	$1,314	138%
Sanford Health Plan	$850	89%
Security Health Plan	$866 - $2,307	91%
+ 9 smaller / regional plans	$773 - $1,492

Government programs also on file: Military & VA.

Excludes 5 rental-network / third-party entries (e.g. Multiplan, PHCS) — these are pricing networks, not insurers.

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 1,469), 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 Marshfield Medical 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 Marshfield Medical Center

Compare: Colonoscopy (diagnostic) at other WI hospitals

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