CMS Price Transparency Data

Total knee replacement

Facility: UCSF Health St. Mary's Hospital

Billing Code: 27447 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 27447
Insurance Median: $18,894
Cash Discount Price: Unavailable
vs. Medicare Baseline: 1.44x Medicare

The contracted insurance negotiated median rate for a Total knee replacement at UCSF Health St. Mary's Hospital is $18,894. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is unavailable. Compared to the federal Medicare reimbursement reference rate of $13,116.76, this hospital’s rate is 1.44x the Medicare baseline. Located in 450 Stanyan St, San Francisco, CA.

Cash / Self-Pay

Unavailable

Average discount available for prompt cash payment at this facility.

Insurance Median

$18,894

Median negotiated contract rate across all mapped commercial carriers.

Medicare Reference Rate

$13,116.76

Standard federal government reimbursement rate for this code.

Visual Cost Comparison vs. Medicare

Medicare Reference Baseline: $13,116.76 (100%)

Insurance Median: $18,894 (144%)

Ins. Median: $18,894 (144% of Medicare)

Understanding this gauge: We use the federal Medicare rate of $13,116.76 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
Brown Toland	$1,465 - $18,894	11%
California Health & Wellness	$1,709	13%
Kaiser	$1,709 - $18,894	13%
Partnership Health Plan	$1,709	13%
Health Net	$2,068 - $21,530	16%
Sfhp	$2,085	16%
Blue Cross Blue Shield	$2,649 - $32,997	20%
Health Plan San Mateo	$2,694 - $18,894	21%
Blue Shield Ca	$6,546 - $18,894	50%
Aetna	$18,894	144%
Chinese Community	$18,894	144%
Connected Care	$18,894	144%
Humana	$18,894	144%
Mhn	$18,894	144%
United	$18,894	144%
Kentfield	$54,792	418%
Oscar	$61,972	472%

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 $X.
Request and sign a "Waiver of Insurance Submission" to prevent automatic billing.
Verify CPT Code matches exactly: 27447.

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 27447.
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.