go back

Immune Globulin (Gammaplex) Injection

Connecticut rates for HCPCS J1557

Injection, immune globulin, (Gammaplex), intravenous, nonlyophilized (e.g., liquid), 500 mg

Rates data updated July 2026.

How much does Gammaplex (human immunoglobulin g) cost?

$72.44per 500 mg

Typical negotiated rate. In Connecticut, July 2026.

Insurers have agreed to pay about $72.44 for each 500 mg of this drug. The price depends on where it is billed: about $64.57 from a physician practice, and about $107 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

Work out the cost of a dose

This drug is priced per 500 mg. Enter the amount given to see what insurers have agreed to pay for it.

mg
In a doctor's office or clinic
$64.57
At a hospital outpatient department
$107

The same drug, in the same amount, costs 66% more at a hospital than at a doctor's office.

Drug cost only. Giving the drug, the visit itself and any monitoring are billed on their own codes. We do not publish dosing guidance: use the amount from your own prescription or treatment plan.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 5 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$64.57$64.57 to $67.61
FacilityA hospital or hospital-owned outpatient department$107$83.18 to $174

How much rates vary

Facilitymedian $107 · 10th to 90th $72 to $191Professionalmedian $65 · 10th to 90th $65 to $68
$100$200facility $107professional $65

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$72.44
Median
$134.90
Typical High
$194.98
Aetna
Setting
Professional
Modifier
Global
Typical Low
$64.57
Median
$64.57
Typical High
$67.61
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$72.44
Median
$102.33
Typical High
$151.36
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$64.57
Median
$64.57
Typical High
$64.57
Cigna
Setting
Facility
Modifier
Global
Typical Low
$72.44
Median
$72.44
Typical High
$123.03
Cigna
Setting
Professional
Modifier
Global
Typical Low
$64.57
Median
$64.57
Typical High
$64.57
ConnectiCare
Setting
Professional
Modifier
Global
Typical Low
$67.61
Median
$70.79
Typical High
$81.28
United
Setting
Professional
Modifier
Global
Typical Low
$57.54
Median
$64.57
Typical High
$125.89

Where Connecticut sits

The same service costs 2.1 times more in Wyoming than in Louisiana. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Connecticut· 16th of 51

$72.44

WY $138LA $64.57

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.