CMS Price Transparency Data

Diagnostic mammogram (both breasts)

Facility: Ascension Saint Thomas Hospital

Billing Code: 77066 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 77066
Insurance Median: $101
Cash Discount Price: $208
vs. Medicare Baseline: 0.64x Medicare

The contracted insurance negotiated median rate for a Diagnostic mammogram (both breasts) at Ascension Saint Thomas Hospital is $101. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $208. Compared to the federal Medicare reimbursement reference rate of $156.98, this hospital’s rate is 0.64x the Medicare baseline. Located in 4220 Harding Rd, Po Box 380, Nashville, TN.

Cash / Self-Pay

$208

Average discount available for prompt cash payment at this facility.

Insurance Median

$101

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: $208 (133%)

Insurance Median: $101 (64%)

Cash: $208 (133% of Medicare)

Ins. Median: $101 (64% 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
Point Comfort Underwriters	$87	55%
Blue Cross Blue Shield	$89 - $231	57%
Amerigroup	$90	57%
Americhoice Mcr Replacement	$91 - $96	58%
Medicare (plans)	$91 - $102	58%
Tricare	$93	59%
Community Plan	$94 - $96	60%
Ascension Complete	$97	62%
Centurion Of Tn	$97	62%
Covid Uninsured Test Fund	$97	62%
Healthspring Mcr Replacement	$97	62%
Humana	$97 - $201	62%
Nhc Advantage	$97	62%
Triwest Va Pccc	$97	62%
UnitedHealthcare	$97 - $193	62%
Aetna	$99 - $232	63%
Amerigroup Mcr Replacement	$100	64%
Select Specialty West	$121	77%
Ambetter / Centene	$126	80%
Oscar Health	$136	87%
Oscar Health Plan	$136	87%
Smart Health	$136	87%
Cigna	$138 - $319	88%

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 $208.
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 Ascension Saint Thomas 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.