Top billers · Codes · J9144

Who bills J9144?

J9144 is the HCPCS code for: Injection, daratumumab, 10 mg and hyaluronidase-fihj. In 2024, 765 providers billed J9144 8,288,764 times, with an estimated $323.0M paid by Medicare.

$57.05
per 10 mg (2026 ASP file)
765
Providers billing it (2024)
8,288,764
Services billed
$323.0M
Est. Medicare paid
The fee

What does Medicare pay for J9144?

J9144 is a Part B drug code: Medicare pays an ASP-based rate of $57.05 per 10 mg (2026 Q3 ASP drug pricing file). Total payment per patient depends on the dose billed.

ASP-based payment limit$57.05 per 10 mg
Pricing file2026 Q3 Average Sales Price (ASP)

A billed "service" on this code is one 10 mg unit, not one patient visit — that's why the service counts below run high.

What Medicare actually paid per service in 2024, on average: $38.97 (observed payment across all settings and modifiers — not a fee-schedule rate).

The list

Who bills J9144 the most.

The top 5 billers nationally, ranked by 2024 Medicare service volume.

#ProviderSpecialtyLocationServicesEst. Medicare paid
1Stefano Tarantolo, M.D.Medical OncologyOmaha, NE54,900$2.1M
2Anuj Mahindra, MDHematology-OncologyLa Jolla, CA49,680$1.9M
3Ruben Niesvizky, MDMedical OncologyNew York, NY48,240$1.9M
4William Sharfman, M.D.Medical OncologyLutherville, MD45,540$1.8M
5Robert Vescio, M.D.Hematology-OncologyLos Angeles, CA41,220$1.6M

760 more providers billed J9144 in 2024. The full ranked list — filtered to your exact territory, with phone numbers and year-over-year history — is one search in Prospect 811.

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The breakdown

Where J9144 gets billed.

Top states by volume

Florida939,302 services
California759,190 services
Virginia664,200 services
Maryland540,900 services
Arizona518,220 services
Illinois507,420 services
Texas379,980 services
New York367,200 services

About this code

CMS descriptionInjection, daratumumab, 10 mg and hyaluronidase-fihj
Code typeHCPCS Level II
Providers billing it (2024)765
Services billed (2024)8,288,764
Avg. Medicare payment per service (2024)$38.97
Where these numbers come from. Rates are CMS's own public fee-schedule files — the Physician Fee Schedule, Clinical Laboratory Fee Schedule, ASP drug pricing, DMEPOS, and the OPPS/ASC addenda — each labeled with its file year on this page; national amounts are shown before geographic adjustment. Codes with no separate rate render the fee schedule's own status in words, never a fake $0. Utilization comes from CMS's public Medicare Provider Utilization & Payment data for 2024, the most recent year released. It covers traditional Medicare fee-for-service only (no commercial insurance, no Medicare Advantage), and CMS suppresses any provider-and-code line with fewer than 11 beneficiaries before publishing, so low-volume billers don't appear at all. "Est. Medicare paid" is each billing line's average Medicare payment times its service count, summed — actual per-claim payment varies by setting and modifiers. For drug and supply codes, a "service" is a billed unit (a milligram, a milliliter, a square centimeter), not a patient visit. Code descriptions are CMS's own, from the utilization files. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

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