CMS Price Transparency Data

Blood test, sodium

Facility: Mercy Rehabilitation Hospital South

Billing Code: 84295 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 84295
Insurance Median: $18
Cash Discount Price: $18
vs. Medicare Baseline: 3.74x Medicare

The contracted insurance negotiated median rate for a Blood test, sodium at Mercy Rehabilitation Hospital South is $18. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $18. Compared to the federal Medicare reimbursement reference rate of $4.81, this hospital’s rate is 3.74x the Medicare baseline. Located in 10114 Kennerly Rd, Saint Louis, MO.

Cash / Self-Pay

$18

Average discount available for prompt cash payment at this facility.

Insurance Median

$18

Median negotiated contract rate across all mapped commercial carriers.

Medicare Reference Rate

$4.81

Standard federal government reimbursement rate for this code.

Visual Cost Comparison vs. Medicare

Medicare Reference Baseline: $4.81 (100%)

Cash / Self-Pay: $18 (374%)

Insurance Median: $18 (374%)

Cash: $18 (374% of Medicare)

Ins. Median: $18 (374% of Medicare)

Understanding this gauge: We use the federal Medicare rate of $4.81 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 374% of the Medicare baseline (a markup of 274%). 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
Aetna	$17 - $19	353%
Ambetter / Centene	$17 - $19	353%
Blue Cross Blue Shield	$17 - $19	353%
Cigna	$17 - $19	353%
Devoted Health	$17 - $19	353%
Essence	$17 - $19	353%
Healthlink Hmo	$17 - $19	353%
Healthlink Ppo	$17 - $19	353%
Healthy Blue (Missouri Care)	$17 - $19	353%
Homestate Health Plan	$17 - $19	353%
Humana	$17 - $19	353%
Medica	$17 - $19	353%
Medicaid / KanCare	$17 - $19	353%
Meritain Health Cpd	$17 - $19	353%
Meritain Health Ppo Cpd	$17 - $19	353%
Starmark Cpd	$17 - $19	353%
Tricare	$17 - $19	353%
UnitedHealthcare	$17 - $19	353%
Wellcare	$17 - $19	353%

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 $18.
Request and sign a "Waiver of Insurance Submission" to prevent automatic billing.
Verify CPT Code matches exactly: 84295.

Insurance In-Network Protection Plan

Contact your insurance company to confirm Mercy Rehabilitation Hospital South is fully in-network.
Ask your insurer if "Prior Authorization" is required for CPT code 84295.
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.