CMS Price Transparency Data

Blood test, magnesium

Facility: Sanford Chamberlain Medical Center

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $39
Cash Discount Price: $42
vs. Medicare Baseline: 5.82x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at Sanford Chamberlain Medical Center is $39. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $42. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 5.82x the Medicare baseline. Located in 300 S Byron, Chamberlain, SD.

Cash / Self-Pay

$42

Average discount available for prompt cash payment at this facility.

Insurance Median

$39

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: $42 (627%)

Insurance Median: $39 (582%)

Cash: $42 (627% of Medicare)

Ins. Median: $39 (582% 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 582% of the Medicare baseline (a markup of 482%). 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
Sanford Health Plan Align	$9 - $42	134%
Aetna	$10 - $108	149%
Health Partners	$10 - $93	149%
Medicare (plans)	$10 - $46	149%
Primewest	$10 - $47	149%
Ucare	$10 - $109	149%
UnitedHealthcare	$10 - $104	149%
Wellmark Sd	$10 - $108	149%
Sanford Health Plan	$15 - $91	224%
Security Health Plan	$15 - $68	224%
Medica	$22 - $109	328%
First Choice Health Network	$24 - $112	358%
Healthez	$24 - $112	358%
Multiplan	$24 - $112	358%

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 $42.
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 Sanford Chamberlain 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.