CMS Price Transparency Data

Blood test, magnesium

Facility: Cook Childrens Medical Center

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $125
Cash Discount Price: $1,041
vs. Medicare Baseline: 18.66x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at Cook Childrens Medical Center is $125. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $1,041. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 18.66x the Medicare baseline. Located in 801 Seventh Avenue, Fort Worth, TX.

Cash / Self-Pay

$1,041

Average discount available for prompt cash payment at this facility.

Insurance Median

$125

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: $1,041 (15537%)

Insurance Median: $125 (1866%)

Cash: $1,041 (15537% of Medicare)

Ins. Median: $125 (1866% 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 1866% of the Medicare baseline (a markup of 1766%). 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
Health Plan W. Uhrip	$6 - $995	90%
Aetna	$7 - $2,224	104%
Beacon	$7 - $628	104%
Blue Cross Blue Shield	$7 - $2,355	104%
El Paso Health First	$7	104%
Firstcare	$7 - $2,093	104%
Health Plan W/O Uhrip	$7 - $628	104%
Molina	$7	104%
Rightcare	$7 - $875	104%
Superior Health	$7	104%
Tx Children Health	$7	104%
United Community	$7	104%
Wellpoint	$7	104%
UnitedHealthcare	$71 - $2,224	1060%
S&W Health	$135 - $2,198	2015%
Cigna	$136 - $2,224	2030%
Healthscope	$136 - $2,224	2030%
Imagine Health	$136 - $2,224	2030%
Humana	$140 - $2,303	2090%
Multiplan	$140 - $2,276	2090%
First Health	$141 - $2,303	2104%
Galaxy Health	$144 - $2,355	2149%
Healthsmart	$144 - $2,355	2149%
Usamco	$148 - $2,407	2209%

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 $1,041.
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 Cook Childrens Medical Center 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.