CMS Price Transparency Data

Diagnostic mammogram (both breasts)

Facility: UCSF Health St. Mary's Hospital

Billing Code: 77066 (CPT)

The BaseRate · fair price high confidence

A fair price for this

$191

about 1.2× the $157 Medicare rate · typically $144–$328

modeled estimate · not a bill or quote

What this hospital charges insurers

$668

Well above the fair price

about $477 over the fair price · 4.3× Medicare

Medicare pays $157 Fair price $191 This hospital $668 Cash price $1,032 Hospital's list price $1,032

How we calculate the fair BaseRate →

How this hospital compares to other CA hospitals

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

Cheapest $48 Priciest $668

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

A fair price for a Diagnostic mammogram (both breasts) is about $191 (about 1.2× the $157 Medicare rate). UCSF Health St. Mary's Hospital charges insurers about $668, or about $1,032 in cash — well above the fair price. Located in San Francisco, CA.

This price is above the fair BaseRate — you may be able to pay less

Ask the hospital for the cash / self-pay price, check whether you qualify for financial assistance, or negotiate the bill down toward the fair price of about $191. Many patients pay well below the first number they’re quoted — the checklists below walk you through it.

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✓ Kaiser Permanente Humana

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	$263	168%
Blue Cross Blue Shieldmajor	$184 - $1,086	117%
Aetnamajor	$901	574%
Cignamajor	$822 - $875	524%
Kaiser Permanentemajor	$148 - $825	94%
Health Net	$217	138%
+ 7 smaller / regional plans	$148 - $1,086

Excludes 2 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 1,032), 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 UCSF Health St. Mary's Hospital 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 UCSF Health St. Mary's Hospital

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

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