CMS Price Transparency Data

Blood test, magnesium

Facility: Rockcastle County Hospital, Inc.

Billing Code: 83735 (CPT)

The BaseRate · fair price medium confidence

A fair price for this

$15

about 2.1× the $7 Medicare rate · typically $7–$49

modeled estimate · not a bill or quote

Medicare pays $7 Fair price $15 Cash price $71 Hospital's list price $93

How we calculate the fair BaseRate →

What each insurance company pays

Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.

5 of 6 major insurers have a published price at this hospital

✓ UnitedHealthcare✓ Blue Cross Blue Shield✓ Aetna✓ Cigna✓ Humana Kaiser Permanente

Crossed out = this hospital hasn’t published a negotiated price for that insurer for this procedure. It doesn’t necessarily mean they aren’t accepted — ask your insurer.

Insurance company	Price range	vs. Medicare
UnitedHealthcaremajor	$32 - $139	478%
Blue Cross Blue Shieldmajor	$6 - $96	90%
Aetnamajor	$32 - $139	478%
Cignamajor	$31 - $135	463%
Humanamajor	$7	104%
CareSource	$7 - $139	104%
Molina	$7 - $139	104%
WellCare	$7	104%
+ 4 smaller / regional plans	$7 - $132

Government programs also on file: Medicaid, Military & VA.

Excludes 3 rental-network / third-party entries (e.g. Multiplan, PHCS) — these are pricing networks, not insurers.

Self-Pay How to get the cash price

Tell the billing desk you want to be billed as self-pay — not through insurance — before your visit.
Ask for the cash / prompt-pay discount in writing, with the exact price (about 71), before you agree to anything.
Get it in writing that they won’t also bill your insurance, so the cash price is what you owe.
Check the CPT code on your bill matches exactly: 83735.

Insurance Before you use insurance

Call your insurance company to confirm Rockcastle County Hospital, Inc. is in-network.
Ask your insurer whether prior approval is required for CPT code 83735.
Confirm the doctor or provider is in-network too — not just the hospital building.
Check your Explanation of Benefits against the hospital’s final itemized bill.

Estimate your out-of-pocket cost

A rough estimate of what you’d pay with insurance (deductible + coinsurance) versus paying the cash price yourself.

How you’d pay

Deductible left to meet ($)

Your coinsurance (%)

Enter your details and press estimate to compare.

Other Procedures at Rockcastle County Hospital, Inc.

Compare: Blood test, magnesium at other KY hospitals

Insurance negotiated median for the same procedure, sorted lowest first.