Top billers · Codes · J9312

Who bills J9312?

J9312 is the HCPCS code for: Injection, rituximab, 10 mg. In 2024, 336 providers billed J9312 1,277,588 times, with an estimated $76.9M paid by Medicare.

$73.28
per 10 mg (2026 ASP file)
336
Providers billing it (2024)
1,277,588
Services billed
$76.9M
Est. Medicare paid
The fee

What does Medicare pay for J9312?

J9312 is a Part B drug code: Medicare pays an ASP-based rate of $73.28 per 10 mg (2026 Q3 ASP drug pricing file). Total payment per patient depends on the dose billed.

ASP-based payment limit$73.28 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: $60.20 (observed payment across all settings and modifiers — not a fee-schedule rate).

The list

Who bills J9312 the most.

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

#ProviderSpecialtyLocationServicesEst. Medicare paid
1Barry Eibschutz, M.D.RheumatologySan Luis Obispo, CA24,500$1.5M
2Thomas Niederman, MD,PHDMedical OncologyBoynton Beach, FL18,790$1.2M
3Vinh-Linh Nguyen, MDHematology-OncologyBakersfield, CA13,760$834K
4Sona Kamat, M.D.Internal MedicineSaint Louis, MO13,300$806K
5Theerapol Prasertsuntarasai, MDRheumatologyLubbock, TX13,050$794K

331 more providers billed J9312 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 J9312 gets billed.

Top states by volume

Florida116,903 services
Texas111,376 services
California105,112 services
South Carolina79,668 services
New York69,291 services
Kansas68,490 services
Georgia59,388 services
Missouri57,465 services

About this code

CMS descriptionInjection, rituximab, 10 mg
Code typeHCPCS Level II
Providers billing it (2024)336
Services billed (2024)1,277,588
Avg. Medicare payment per service (2024)$60.20
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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