CMS Price Transparency Data

Diagnostic mammogram (both breasts)

Facility: UCSF Health St. Mary's Hospital

Billing Code: 77066 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 77066
Insurance Median: $652
Cash Discount Price: $1,032
vs. Medicare Baseline: 4.15x Medicare

The contracted insurance negotiated median rate for a Diagnostic mammogram (both breasts) at UCSF Health St. Mary's Hospital is $652. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $1,032. Compared to the federal Medicare reimbursement reference rate of $156.98, this hospital’s rate is 4.15x the Medicare baseline. Located in 450 Stanyan St, San Francisco, CA.

Cash / Self-Pay

$1,032

Average discount available for prompt cash payment at this facility.

Insurance Median

$652

Median negotiated contract rate across all mapped commercial carriers.

Medicare Reference Rate

$156.98

Standard federal government reimbursement rate for this code.

Visual Cost Comparison vs. Medicare

Medicare Reference Baseline: $156.98 (100%)

Cash / Self-Pay: $1,032 (657%)

Insurance Median: $652 (415%)

Cash: $1,032 (657% of Medicare)

Ins. Median: $652 (415% of Medicare)

Understanding this gauge: We use the federal Medicare rate of $156.98 as the cost baseline. Rates below the baseline represent excellent value. In-network commercial rates commonly hover around 150% - 250% of Medicare, while rates exceeding 300% are elevated. Hover over the green and blue markers to view detailed calculations.

Elevated Commercial Rate Alert (Value-Gap)

The negotiated rate at this facility is 415% of the Medicare baseline (a markup of 315%). Patients with high-deductible plans or out-of-network benefits may face excessive out-of-pocket costs.

Consult Patient Advocate

Out-of-Pocket Cost Estimator

Estimate whether it is more economical to use your insurance or pay the upfront self-pay cash rate.

Billing Status

Remaining Deductible ($)

Your Coinsurance Rate (%)

Input your details and click calculate to compare out-of-pocket costs.

Commercial Insurance Negotiated Rates

Negotiated contract ranges established by major commercial carriers at this facility.

Carrier / Plan Group	Contract Rate Range	vs. Medicare Reference
California Health & Wellness	$148	94%
Health Plan San Mateo	$148	94%
Kaiser	$148 - $825	94%
Partnership Health Plan	$148	94%
Blue Cross Blue Shield	$184 - $1,086	117%
Sfhp	$207	132%
Brown Toland	$210	134%
Health Net	$217	138%
United	$263	168%
Magellan	$586 - $652	373%
Chinese Community	$635 - $706	405%
Healthsmart	$684 - $760	436%
Multiplan	$811 - $901	517%
Cigna	$822 - $875	524%
Aetna	$901	574%
Us Behavioral Health	$977 - $1,086	622%

Self-Pay Upfront Cash Action Plan

Request a "Self-Pay classification" with the billing desk before receiving care.
Ask for a written "Prompt-Pay Discount" agreement quoting the price of $1,032.
Request and sign a "Waiver of Insurance Submission" to prevent automatic billing.
Verify CPT Code matches exactly: 77066.

Insurance In-Network Protection Plan

Contact your insurance company to confirm UCSF Health St. Mary's Hospital is fully in-network.
Ask your insurer if "Prior Authorization" is required for CPT code 77066.
Confirm the specific physician or imaging center is also in-network (not just the hospital building).
Audit your Explanation of Benefits (EOB) against the final itemized hospital invoice.