CMS Price Transparency Data

Diagnostic mammogram (both breasts)

Facility: SSM Health Saint Louis University Hospital

Billing Code: 77066 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 77066
Insurance Median: $232
Cash Discount Price: $319
vs. Medicare Baseline: 1.48x Medicare

The contracted insurance negotiated median rate for a Diagnostic mammogram (both breasts) at SSM Health Saint Louis University Hospital is $232. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $319. Compared to the federal Medicare reimbursement reference rate of $156.98, this hospital’s rate is 1.48x the Medicare baseline. Located in 1201 S Grand Blvd, Saint Louis, MO.

Cash / Self-Pay

$319

Average discount available for prompt cash payment at this facility.

Insurance Median

$232

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: $319 (203%)

Insurance Median: $232 (148%)

Cash: $319 (203% of Medicare)

Ins. Median: $232 (148% 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.

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
Blue Cross Blue Shield	$102 - $480	65%
Aetna	$104 - $106	66%
Ambetter / Centene	$105	67%
Humana	$106	68%
Essence	$107	68%
Oscar	$125	80%
UnitedHealthcare	$148 - $251	94%
Cigna	$191	122%
Healthlink	$297	189%

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 $319.
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 SSM Health Saint Louis University 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.