J9299 is the HCPCS code for: Injection, nivolumab, 1 mg. In 2024, 441 providers billed J9299 7,881,796 times, with an estimated $191.3M paid by Medicare.
J9299 is a Part B drug code: Medicare pays an ASP-based rate of $34.22 per 1 mg (2026 Q3 ASP drug pricing file). Total payment per patient depends on the dose billed.
A billed "service" on this code is one 1 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: $24.27 (observed payment across all settings and modifiers — not a fee-schedule rate).
The top 5 billers nationally, ranked by 2024 Medicare service volume.
| # | Provider | Specialty | Location | Services | Est. Medicare paid |
|---|---|---|---|---|---|
| 1 | Vinh-Linh Nguyen, MD | Hematology-Oncology | Bakersfield, CA | 113,860 | $2.8M |
| 2 | Carl Gray, M.D. | Hematology | Ogden, UT | 71,260 | $1.8M |
| 3 | Ronald Drengler, M.D. | Medical Oncology | San Antonio, TX | 71,260 | $1.8M |
| 4 | Thomas Buroker, DO | Medical Oncology | Ankeny, IA | 67,720 | $1.7M |
| 5 | William Sharfman, M.D. | Medical Oncology | Lutherville, MD | 61,760 | $1.4M |
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