CMS Price Transparency Data

Hepatitis B immune globulin

Facility: Mercy Health Saint Mary's

Billing Code: 90371 (HCPCS)

The BaseRate · fair price high confidence

A fair price for this

$167

about 1.2× the $140 Medicare rate · typically $136–$327

modeled estimate · not a bill or quote

Medicare pays $140 Fair price $167 Cash price $2,047

How we calculate the fair BaseRate →

Insurer prices not shown for this procedure

This hospital’s published rates for this billing code don’t look like a per-visit price — they appear to be a full-stay total filed under an hourly code — so we’re not showing a per-insurer breakdown we can’t stand behind. The fair price above is your best reference; call the hospital’s billing office to confirm the actual charge.

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 2,047), 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 Mercy Health Saint Mary's 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 Mercy Health Saint Mary's

Compare: Hepatitis B immune globulin at other MI hospitals

McLaren Bay Region · Bay City $131
McLaren Central Michigan · Mount Pleasant $131
McLaren Northern Michigan · Petoskey $131
McLaren Flint · Flint $131
McLaren Greater Lansing · Lansing $131
McLaren Lapeer Region · Lapeer $131
McLaren Oakland · Pontiac $131
McLaren Macomb · Mount Clemens $131

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