CMS Price Transparency Data

Blood test, magnesium

Facility: Camc Greenbrier Valley Medical Center, Inc

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $19
Cash Discount Price: $61
vs. Medicare Baseline: 2.84x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at Camc Greenbrier Valley Medical Center, Inc is $19. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $61. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 2.84x the Medicare baseline. Located in 1320 Maplewood Avenue, Ronceverte, WV.

Cash / Self-Pay

$61

Average discount available for prompt cash payment at this facility.

Insurance Median

$19

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: $61 (910%)

Insurance Median: $19 (284%)

Cash: $61 (910% of Medicare)

Ins. Median: $19 (284% 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 284% of the Medicare baseline (a markup of 184%). 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
Sentra Health	$2 - $30	30%
Aetna	$6 - $147	90%
Blue Cross Blue Shield	$6 - $139	90%
Caresource	$6 - $120	90%
The Health Plan	$6 - $135	90%
Unicare	$6	90%
Ally Align	$7	104%
Clear Spring Health	$7	104%
Humana	$7 - $135	104%
UnitedHealthcare	$7 - $120	104%
Greenbrier Resort	$8 - $105	119%
Healthsmart	$8 - $105	119%
Multiplan	$9 - $130	134%
Fedmed	$11 - $135	164%
Integrated Medical Solutions	$12 - $13	179%
Naphcare	$12 - $13	179%

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 $61.
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 Camc Greenbrier Valley Medical Center, Inc 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.