CMS Price Transparency Data

Diagnostic mammogram (both breasts)

Facility: Stillwater Billings Clinic

Billing Code: 77066 (CPT)

The BaseRate · fair price high confidence

A fair price for this

$101

about 0.6× the $157 Medicare rate · typically $68–$186

modeled estimate · not a bill or quote

What this hospital charges insurers

$83

Below the fair price — a good deal

about $18 under the fair price · 0.5× Medicare

Medicare pays $157 Fair price $101 This hospital $83 Cash price $279 Hospital's list price $279

How we calculate the fair BaseRate →

How this hospital compares to other MT hospitals

A typical price — 3 charge more and 5 charge less, among the 9 MT hospitals compared.

Cheapest $51 Priciest $162

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

⚠ The cash price looks unusually high next to the insurance price — it may be the full list price, not a real cash discount. Call to confirm the self-pay rate.

A fair price for a Diagnostic mammogram (both breasts) is about $101 (about 0.6× the $157 Medicare rate). Stillwater Billings Clinic charges insurers about $83, or about $279 in cash — below the fair price — a good deal. Located in Columbus, MT.

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	$78 - $386	50%
Blue Cross Blue Shieldmajor	$46 - $386	29%
Aetnamajor	$84 - $394	54%
Cignamajor	$83 - $386	53%
Humanamajor	$44 - $279	28%
PacificSource	$84 - $386	54%
+ 29 smaller / regional plans	$45 - $568

Government programs also on file: Military & VA.

Excludes 1 rental-network / third-party entry (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 279), 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: 77066.

Insurance Before you use insurance

Call your insurance company to confirm Stillwater Billings Clinic is in-network.
Ask your insurer whether prior approval is required for CPT code 77066.
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 Stillwater Billings Clinic

Compare: Diagnostic mammogram (both breasts) at other MT hospitals

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