CMS Price Transparency Data

Hepatitis B immune globulin

Facility: Williamson Medical Center

Billing Code: 90371 (HCPCS)

The BaseRate · fair price high confidence

A fair price for this

$143

about 1.0× the $140 Medicare rate · typically $130–$175

modeled estimate · not a bill or quote

What this hospital charges insurers

$128

Below the fair price — a good deal

about $15 under the fair price · 0.9× Medicare

Medicare pays $140 Fair price $143 This hospital $128 Cash price $843 Hospital's list price $1,505

How we calculate the fair BaseRate →

How this hospital compares to other TN hospitals

One of the lower prices — 7 of 8 other TN hospitals charge more for the same procedure.

Cheapest $72 Priciest $140

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 Hepatitis B immune globulin is about $143 (about 1.0× the $140 Medicare rate). Williamson Medical Center charges insurers about $128, or about $843 in cash — below the fair price — a good deal. Located in Franklin, 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	$56 - $632	40%
Blue Cross Blue Shieldmajor	$60 - $1,084	43%
Aetnamajor	$128 - $1,021	91%
Cignamajor	$128 - $973	91%
Humanamajor	$128 - $708	91%
Ambetter (Centene)	$128 - $221	91%
Amerigroup	$128 - $138	91%
Devoted Health	$128 - $137	91%
Oscar Health	$753	537%
WellCare	$128 - $137	91%
+ 10 smaller / regional plans	$128 - $1,430

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 843), 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 HCPCS code on your bill matches exactly: 90371.

Insurance Before you use insurance

Call your insurance company to confirm Williamson Medical Center is in-network.
Ask your insurer whether prior approval is required for HCPCS code 90371.
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 Williamson Medical Center

Compare: Hepatitis B immune globulin at other TN hospitals

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