CMS Price Transparency Data

Blood test, magnesium

Facility: Stonesprings Hospital Center

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)
  • CPT Billing Code: 83735
  • Insurance Median: $37
  • Cash Discount Price: $591
  • vs. Medicare Baseline: 5.52x Medicare
The contracted insurance negotiated median rate for a Blood test, magnesium at Stonesprings Hospital Center is $37. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $591. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 5.52x the Medicare baseline. Located in 24440 Stone Springs Boulevard, Dulles, VA.
Cash / Self-Pay
$591

Average discount available for prompt cash payment at this facility.

Insurance Median
$37

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: $591 (8821%)
Insurance Median: $37 (552%)
Cash: $591 (8821% of Medicare)
Ins. Median: $37 (552% 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 552% of the Medicare baseline (a markup of 452%). Patients with high-deductible plans or out-of-network benefits may face excessive out-of-pocket costs.

Out-of-Pocket Cost Estimator

Estimate whether it is more economical to use your insurance or pay the upfront self-pay cash 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
Humana $5 - $7 75%
Devoted $7 104%
Blue Cross Blue Shield $7 - $35 104%
Clear Spring Health Plan $7 104%
United $7 - $323 104%
Johns Hopkins $7 104%
Cigna $7 - $27 104%
Sentara Health $7 104%
Align Senior Care $7 104%
Virginia Premier Health $7 104%
Aetna $7 104%
Bright Health $14 209%
Carefirst $38 567%
Lifeworks $88 - $136 1313%
Greenvbrier Sporting Club $279 - $430 4164%
Virginia Health Network $330 - $509 4925%
Corvel $334 - $516 4985%
Three Rivers Provider Network $395 - $610 5896%

Self-Pay Upfront Cash Action Plan

Insurance In-Network Protection Plan

Facility Profile & Credentials

  • Address: 24440 Stone Springs Boulevard, Dulles, VA 20166
  • CMS Rating: ★★★★☆
  • Ownership Type: Proprietary
  • Hospital Type: Acute Care Hospitals