CMS Price Transparency Data

Blood test, magnesium

Facility: Sharp Chula Vista Medical Center

Billing Code: 83735 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 83735
Insurance Median: $25
Cash Discount Price: $30
vs. Medicare Baseline: 3.73x Medicare

The contracted insurance negotiated median rate for a Blood test, magnesium at Sharp Chula Vista Medical Center is $25. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $30. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 3.73x the Medicare baseline. Located in 751 Medical Center Court, Chula Vista, CA.

Cash / Self-Pay

$30

Average discount available for prompt cash payment at this facility.

Insurance Median

$25

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: $30 (448%)

Insurance Median: $25 (373%)

Cash: $30 (448% of Medicare)

Ins. Median: $25 (373% 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 373% of the Medicare baseline (a markup of 273%). 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
Aetna	$1 - $2,059	15%
Blue Cross Blue Shield	$1 - $140	15%
Epic Americas	$1 - $130	15%
UnitedHealthcare	$1 - $105	15%
County Medical Services	$2 - $305	30%
Health Net	$2 - $149	30%
Community Health Group	$3 - $143	45%
Molina	$3 - $204	45%
San Diego Pace	$3 - $25	45%
Humana	$4 - $130	60%
Managed Health Network	$4 - $140	60%
Blue Shield	$6 - $93	90%
Interplan	$6 - $119	90%
Cigna	$7 - $105	104%
Indian Health Council	$7 - $93	104%
Kaiser	$7 - $119	104%
Medicare (plans)	$8 - $55	119%
Multiplan	$8 - $116	119%
Allianz Global Assistance	$10 - $26	149%
Medi-Cal	$63	940%
California Health And Wellness	$70 - $4,117	1045%

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 $30.
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 Sharp Chula Vista 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.