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Ongoing Blood-Thinner Dose Management, First 3 Months

California rates for HCPCS 99363

This covers the work involved in managing a patient's warfarin (a blood-thinning medication) over the first three months of therapy 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 service reflects the ongoing coordination needed to keep the blood-thinning level in a safe range.

Rates data updated July 2026.

How much does Ongoing Blood-Thinner Dose Management, First 3 Months cost?

$174

Typical physician fee. In California, July 2026.

Insurers have agreed to pay about $174 for this service. Most negotiated rates run $126 to $457.

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 6 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $155 · 10th to 90th $98 to $331Professionalmedian $575 · 10th to 90th $331 to $575
$100$200$500facility $155professional $575

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
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$120.23
Median
$120.23
Typical High
$151.36
Cigna
Setting
Professional
Modifier
Global
Typical Low
$229.09
Median
$354.81
Typical High
$512.86
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$128.82
Median
$398.11
Typical High
$831.76
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$457.09
Median
$457.09
Typical High
$457.09
Lucent Health
Setting
Professional
Modifier
Global
Typical Low
$575.44
Median
$575.44
Typical High
$575.44
Molina
Setting
Professional
Modifier
Global
Typical Low
$724.44
Median
$724.44
Typical High
$724.44
Providence
Setting
Facility
Modifier
Global
Typical Low
$95.50
Median
$147.91
Typical High
$234.42

Where California sits

The same service costs 4.8 times more in Tennessee than in New Hampshire. 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.

California· 39th of 49

$174

TN $575NH $120

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.