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Ado-Trastuzumab Emtansine Injection

Massachusetts rates for HCPCS J9354 · Kadcyla

Injection, ado-trastuzumab emtansine, 1 mg

Rates data updated October 2026.

How much does Kadcyla (ado-trastuzumab emtansine) cost?

$43.65per mg

Typical negotiated rate. In Massachusetts, October 2026.

Insurers have agreed to pay about $43.65 for each mg of this drug. The price depends on where it is billed: about $43.65 from a physician practice, and about $56.23 from a hospital or other facility.

Work out the cost of a dose

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

mg
In a doctor's office or clinic
$43.65
At a hospital outpatient department
$56.23

The same drug, in the same amount, costs 29% 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 We do not publish dosing guidance: use the amount from your own prescription or treatment plan.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 9 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$43.65$42.66 to $44.67
FacilityA hospital or hospital-owned outpatient department$56.23$43.65 to $83.18

How much rates vary

Facilitymedian $56 · 10th to 90th $43 to $120Professionalmedian $44 · 10th to 90th $43 to $50
$50$100facility $56professional $44

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$43.65
Median
$43.65
Typical High
$60.26
Aetna
Setting
Professional
Modifier
None
Typical Low
$43.65
Median
$43.65
Typical High
$45.71
AllWays Health Partners
Setting
Facility
Modifier
None
Typical Low
$35.48
Median
$47.86
Typical High
$141.25
AllWays Health Partners
Setting
Professional
Modifier
None
Typical Low
$42.66
Median
$43.65
Typical High
$45.71
BCBS Massachusetts
Setting
Facility
Modifier
None
Typical Low
$43.65
Median
$50.12
Typical High
$89.13
BCBS Massachusetts
Setting
Professional
Modifier
None
Typical Low
$43.65
Median
$43.65
Typical High
$77.62
Cigna
Setting
Facility
Modifier
None
Typical Low
$42.66
Median
$77.62
Typical High
$190.55
Cigna
Setting
Professional
Modifier
None
Typical Low
$43.65
Median
$43.65
Typical High
$43.65
Fallon Health
Setting
Facility
Modifier
None
Typical Low
$43.65
Median
$56.23
Typical High
$67.61
Harvard Pilgrim
Setting
Professional
Modifier
None
Typical Low
$42.66
Median
$43.65
Typical High
$50.12
Mass General Brigham
Setting
Facility
Modifier
None
Typical Low
$35.48
Median
$47.86
Typical High
$141.25
Mass General Brigham
Setting
Professional
Modifier
None
Typical Low
$42.66
Median
$43.65
Typical High
$45.71
United
Setting
Facility
Modifier
None
Typical Low
$43.65
Median
$43.65
Typical High
$43.65
United
Setting
Professional
Modifier
None
Typical Low
$42.66
Median
$42.66
Typical High
$44.67
Well Sense
Setting
Facility
Modifier
None
Typical Low
$46.77
Median
$64.57
Typical High
$102.33
Well Sense
Setting
Professional
Modifier
None
Typical Low
$43.65
Median
$43.65
Typical High
$58.88
4 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$21.88
Median
$21.88
Typical High
$21.88
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$8.71
Median
$8.71
Typical High
$8.71
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$6.61
Median
$6.61
Typical High
$6.61
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$4.37
Median
$4.37
Typical High
$4.37

Where Massachusetts sits

Rates are fairly even across states for this service. 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.

Massachusetts· 34th of 51

$43.65

AK $54.95OR $43.65

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.