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Ongoing Blood-Thinner Management, Later Months

Wisconsin rates for HCPCS 99364

This covers the ongoing work involved in managing a patient's warfarin (a blood-thinning medication) for each additional three-month period after the first, in the outpatient setting. It includes reviewing regular blood clotting test results, adjusting the medication dose as needed, giving the patient instructions, and ordering follow-up testing. This reflects the continued coordination needed to keep the blood-thinning level in a safe range over the long term.

Rates data updated October 2026.

How much does Ongoing Blood-Thinner Management, Later Months cost?

$155

Typical facility fee. In Wisconsin, October 2026.

Insurers have agreed to pay about $155 for this service. Most negotiated rates run $77.62 to $200.

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 4 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $123 · 10th to 90th $63 to $166Professionalmedian $155 · 10th to 90th $62 to $200
$50$100$200facility $123professional $155

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

Rates by insurance carrier

Insurance Carrier
Cigna
Setting
Facility
Modifier
None
Typical Low
$107.15
Median
$123.03
Typical High
$181.97
Cigna
Setting
Professional
Modifier
None
Typical Low
$53.70
Median
$69.18
Typical High
$95.50
DeanCare
Setting
Facility
Modifier
None
Typical Low
$63.10
Median
$63.10
Typical High
$83.18
Medica
Setting
Facility
Modifier
None
Typical Low
$63.10
Median
$63.10
Typical High
$83.18
Medica
Setting
Professional
Modifier
None
Typical Low
$154.88
Median
$199.53
Typical High
$199.53
Prevea360
Setting
Facility
Modifier
None
Typical Low
$63.10
Median
$63.10
Typical High
$83.18

Where Wisconsin sits

The same service costs 22.4 times more in Hawaii than in South Carolina. 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.

Wisconsin· 9th of 47

$155

HI $676SC $30.20

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.