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Ongoing Blood-Thinner Management, Later Months

Massachusetts 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 July 2026.

Facilitymedian $162 · 10th–90th $162$1620%50%100%$162Professionalmedian $200 · 10th–90th $174$2000%50%10th$200$100.0$200.0

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Small sample; interpret with caution. Need provider-level prices? Contact us.

Insurance Carrier
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$162.18
Median
$162.18
Typical High
$162.18
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$199.53
Median
$199.53
Typical High
$199.53
Cigna
Setting
Professional
Modifier
Global
Typical Low
$89.13
Median
$125.89
Typical High
$194.98
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$162.18
Median
$162.18
Typical High
$162.18
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$199.53
Median
$199.53
Typical High
$199.53