CMS Price Transparency Data

Blood test, magnesium

Facility: The Children's Mercy Hospital

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $51
Cash Discount Price: $38
vs. Medicare Baseline: 7.61x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at The Children's Mercy Hospital is $51. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $38. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 7.61x the Medicare baseline. Located in 2401 Gillham Road, Kansas City, MO.

Cash / Self-Pay

$38

Average discount available for prompt cash payment at this facility.

Insurance Median

$51

Median negotiated contract rate across all mapped commercial carriers.

Medicare Reference Rate

$6.7

Standard federal government reimbursement rate for this code.

Visual Cost Comparison vs. Medicare

Medicare Reference Baseline: $6.7 (100%)

Cash / Self-Pay: $38 (567%)

Insurance Median: $51 (761%)

Cash: $38 (567% of Medicare)

Ins. Median: $51 (761% of Medicare)

Understanding this gauge: We use the federal Medicare rate of $6.7 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 761% of the Medicare baseline (a markup of 661%). 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
UnitedHealthcare	$7 - $53	104%
Healthy Blue	$8 - $18	119%
Medicaid / KanCare	$8	119%
Home State Health	$16	239%
Blue Cross Blue Shield	$32 - $58	478%
Cigna	$38 - $55	567%
Medica	$46	687%
Aetna	$47 - $54	701%
Centivo	$51	761%
Health Midwest Comprehensive Care	$51	761%
Nebraska Furniture Mart	$51	761%
Orscheln	$51	761%
Quiktrip	$51	761%
Wellfit/Centrus	$51	761%
Wppa Providrs Care	$51	761%
Humana	$53	791%
Coventry Health Care Of Kansas	$58	866%
Coxhealth Network	$58	866%
Mercy Health	$59	881%
Multiplan	$60	896%
American Healthcare Alliance	$67	1000%
Healthlink	$70	1045%
National Preferred Provider Network	$71	1060%

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 $38.
Request and sign a "Waiver of Insurance Submission" to prevent automatic billing.
Verify CPT Code matches exactly: 83735.

Insurance In-Network Protection Plan

Contact your insurance company to confirm The Children's Mercy Hospital is fully in-network.
Ask your insurer if "Prior Authorization" is required for CPT code 83735.
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.