CMS Price Transparency Data

Blood test, magnesium

Facility: St Marys Good Samaritan Hospital

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $22
Cash Discount Price: $48
vs. Medicare Baseline: 3.28x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at St Marys Good Samaritan Hospital is $22. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $48. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 3.28x the Medicare baseline. Located in 5401 Lake Oconee Parkway, Greensboro, GA.

Cash / Self-Pay

$48

Average discount available for prompt cash payment at this facility.

Insurance Median

$22

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: $48 (716%)

Insurance Median: $22 (328%)

Cash: $48 (716% of Medicare)

Ins. Median: $22 (328% 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 328% of the Medicare baseline (a markup of 228%). 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
Amerigroup	$8	119%
Blue Cross Blue Shield	$8 - $58	119%
Aetna	$11 - $64	164%
Ambetter / Centene	$11 - $22	164%
Care Improvement Plus	$11 - $22	164%
Caresource	$11 - $22	164%
Cigna	$11 - $66	164%
Coventry	$11 - $60	164%
Eon Health Plan	$11 - $22	164%
Humana	$11 - $60	164%
Kaiser Permanente	$11 - $22	164%
Molina	$11 - $22	164%
Pruitthealth Premier	$11 - $22	164%
Todays Options Pffs	$11 - $22	164%
Todays Options Ppo	$11 - $22	164%
UnitedHealthcare	$11 - $2,632	164%
Vaccn United	$11 - $22	164%
Wellcare	$11 - $22	164%
First Health	$31 - $60	463%
Phcs	$31 - $60	463%
Meritain	$33 - $64	493%
Multiplan	$35 - $70	522%
Nova	$35 - $72	522%
Three Rivers Provider Network	$37 - $72	552%

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 $48.
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 St Marys Good Samaritan 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.