CMS Price Transparency Data

Colonoscopy (diagnostic)

Facility: Williamson Medical Center

Billing Code: 45378 (CPT)

The BaseRate · fair price medium confidence

A fair price for this

$710

about 0.7× the $950 Medicare rate · typically $321–$1,678

modeled estimate · not a bill or quote

What this hospital charges insurers

$327

Below the fair price — a good deal

about $383 under the fair price · 0.3× Medicare

Medicare pays $950 Fair price $710 This hospital $327

How we calculate the fair BaseRate →

How this hospital compares to other TN hospitals

One of the lower prices — 7 of 8 other TN hospitals charge more for the same procedure.

Cheapest $166 Priciest $861

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

A fair price for a Colonoscopy (diagnostic) is about $710 (about 0.7× the $950 Medicare rate). Williamson Medical Center charges insurers about $327 — below the fair price — a good deal. Located in Franklin, TN.

What each insurance company pays

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

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

✓ UnitedHealthcare✓ Blue Cross Blue Shield✓ Aetna✓ Cigna✓ Humana Kaiser 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	$163 - $2,785	17%
Blue Cross Blue Shieldmajor	$177 - $1,392	19%
Aetnamajor	$177 - $873	19%
Cignamajor	$163 - $2,271	17%
Humanamajor	$177 - $2,886	19%
Ambetter (Centene)	$177 - $1,441	19%
Amerigroup	$163 - $899	17%
Devoted Health	$177 - $891	19%
Oscar Health	$2,654	279%
WellCare	$177 - $891	19%
+ 5 smaller / regional plans	$177 - $1,091

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, 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 Williamson 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 Williamson Medical Center

Compare: Colonoscopy (diagnostic) at other TN hospitals

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