CMS Price Transparency Data

Blood test, urea nitrogen (BUN, kidney)

Facility: Tristar Skyline Medical Center

Billing Code: 84520 (CPT)

The BaseRate · fair price high confidence

A fair price for this

about 1.0× the $4 Medicare rate · typically $4–$4

modeled estimate · not a bill or quote

What this hospital charges insurers

About the fair price

1.0× Medicare

Medicare pays $4 Fair price $4 This hospital $4 Cash price $314 Hospital's list price $314

How we calculate the fair BaseRate →

How this hospital compares to other TN hospitals

One of the lower prices — 0 of 8 other TN hospitals charge more for the same procedure.

Cheapest $4 Priciest $4

Black dot = this hospital, among the 9 TN hospitals with a price for this procedure. Full list below.

⚠ The cash price looks unusually high next to the insurance price — it may be the full list price, not a real cash discount. Call to confirm the self-pay rate.

A fair price for a Blood test, urea nitrogen (BUN, kidney) is about $4 (about 1.0× the $4 Medicare rate). Tristar Skyline Medical Center charges insurers about $4, or about $314 in cash — about the fair price. Located in Nashville, TN.

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	$4 - $141	101%
Blue Cross Blue Shieldmajor	$2 - $22	51%
Aetnamajor	$3 - $157	76%
Cignamajor	$7 - $102	177%
Humanamajor	$4 - $204	101%
Ambetter (Centene)	$4	101%
Amerigroup	$4	101%
Bright Health	$4 - $5	101%
Cigna HealthSpring	$4	101%
Devoted Health	$4	101%
Health Net	$220	5570%
Oscar Health	$12	304%
WellCare	$4	101%
+ 16 smaller / regional plans	$4 - $267

Government programs also on file: Military & VA.

Excludes 4 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 314), 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: 84520.

Insurance Before you use insurance

Call your insurance company to confirm Tristar Skyline Medical Center is in-network.
Ask your insurer whether prior approval is required for CPT code 84520.
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 Tristar Skyline Medical Center

Compare: Blood test, urea nitrogen (BUN, kidney) at other TN hospitals

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