Ongoing Blood-Thinner Management, Later Months

Pennsylvania 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?

$95.50

Typical physician fee. In Pennsylvania, October 2026.

Insurers have agreed to pay about $95.50 for this service. Most negotiated rates run $87.10 to $95.50.

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 3 insurance carriers under federal price transparency rules.

How much rates vary

Professionalmedian $95 · 10th to 90th $71 to $120

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	Facility/Professional	Modifier	Typical Low	Median	Typical High
Cigna Setting Professional Modifier None Typical Low $69.18 Median $95.50 Typical High $131.83	Professional	None	$69.18	$95.50	$131.83
Geisinger Setting Professional Modifier None Typical Low $63.10 Median $70.79 Typical High $89.13	Professional	None	$63.10	$70.79	$89.13
Oscar Health Setting Professional Modifier None Typical Low $83.18 Median $95.50 Typical High $95.50	Professional	None	$83.18	$95.50	$95.50

Where Pennsylvania 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.

Pennsylvania· 15th of 47

$95.50

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.