CMS Price Transparency Data

Blood test, magnesium

Facility: Marshfield Medical Center - Beaver Dam (Mmc-Bd)

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $87
Cash Discount Price: $108
vs. Medicare Baseline: 12.99x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at Marshfield Medical Center - Beaver Dam (Mmc-Bd) is $87. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $108. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 12.99x the Medicare baseline. Located in 707 S University Ave, Beaver Dam, WI.

Cash / Self-Pay

$108

Average discount available for prompt cash payment at this facility.

Insurance Median

$87

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: $108 (1612%)

Insurance Median: $87 (1299%)

Cash: $108 (1612% of Medicare)

Ins. Median: $87 (1299% 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 1299% of the Medicare baseline (a markup of 1199%). 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
Blue Cross Blue Shield	$7 - $35	104%
Group Health Cooperative Of Eau Claire	$7 - $175	104%
Humana	$7 - $164	104%
Icare	$7 - $8	104%
Managed Health Services	$7	104%
Molina Healthcare Of Wi	$7 - $156	104%
My Choice	$7	104%
Network Health Plan	$7 - $154	104%
Quartz	$7 - $105	104%
Security Health Plan (Shp)	$7 - $106	104%
Trilogy	$7 - $166	104%
UnitedHealthcare	$7 - $23	104%
Veteran'S Administration (Va Ccn)	$7	104%
The Alliance	$18 - $93	269%
Amish/Mennonite	$20 - $101	299%
Wps Health Insurance	$24 - $124	358%
Cigna	$25 - $136	373%
Health Payment Systems	$25 - $128	373%
First Health	$31 - $156	463%
Health Partners	$34 - $175	507%
Healtheos By Multiplan Inc.	$34 - $175	507%
Coventry	$35 - $177	522%

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 $108.
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 Marshfield Medical Center - Beaver Dam (Mmc-Bd) 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.