CMS Price Transparency Data

Diagnostic mammogram (both breasts)

Facility: Shannon Medical Center

Billing Code: 77066 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 77066
Insurance Median: $426
Cash Discount Price: $473
vs. Medicare Baseline: 2.71x Medicare

The contracted insurance negotiated median rate for a Diagnostic mammogram (both breasts) at Shannon Medical Center is $426. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $473. Compared to the federal Medicare reimbursement reference rate of $156.98, this hospital’s rate is 2.71x the Medicare baseline. Located in 120 E Harris Ave., San Angelo, TX.

Cash / Self-Pay

$473

Average discount available for prompt cash payment at this facility.

Insurance Median

$426

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: $473 (301%)

Insurance Median: $426 (271%)

Cash: $473 (301% of Medicare)

Ins. Median: $426 (271% 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 271% of the Medicare baseline (a markup of 171%). 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
Care Improvement	$102	65%
Humana	$102 - $757	65%
Wellmed	$102	65%
City Of San Angelo	$131	83%
Wellpoint	$138	88%
Scott & White	$164	104%
Insurance Management Services	$167	106%
Insurance Services Of Lubbock	$167	106%
Kempton Group	$205	131%
Pdh/Texas Trust	$205	131%
Ambetter / Centene	$220	140%
90 Degree Benefits	$256	163%
Caprock	$256	163%
Blue Cross Blue Shield	$367 - $710	234%
Web Tpa	$426	271%
Aetna	$624	398%
Assurant Health	$624	398%
Cigna	$681	434%
First Health	$710	452%
UnitedHealthcare	$738	470%
Healthsmart	$842	536%

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 $473.
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 Shannon Medical Center 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.