Q5110 is the HCPCS code for: Injection, filgrastim-aafi, biosimilar, (nivestym), 1 microgram. In 2024, 228 providers billed Q5110 5,691,064 times, with an estimated $1.2M paid by Medicare.
Q5110 is a Part B drug code: Medicare pays an ASP-based rate of $0.32 per 1 mcg (2026 Q3 ASP drug pricing file). Total payment per patient depends on the dose billed.
A billed "service" on this code is one 1 mcg unit, not one patient visit — that's why the service counts below run high.
What Medicare actually paid per service in 2024, on average: $0.22 (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 | Bassam Mattar, MD | Hematology-Oncology | Wichita, KS | 137,640 | $30K |
| 2 | Vikas Malhotra, M.D. | Hematology-Oncology | Spring Hill, FL | 99,420 | $22K |
| 3 | Richard Conklin, MD | Hematology-Oncology | Aberdeen, SD | 97,860 | $22K |
| 4 | Noel Maun, MD, PHD | Hematology-Oncology | Venice, FL | 90,780 | $20K |
| 5 | Samer Suki, MD | Hematology-Oncology | Kingwood, TX | 78,840 | $17K |
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