Biologics & Immunotherapy
10 drugs in this class, prescribed by 26,855 Medicare Part D providers.
Data: CMS Medicare Part D, 2023 (most current available) · Updated March 2026
$5.75B
Total Cost
738,787
Claims
10
Drugs
$7,782
Avg Cost/Claim
Key Insights
- Most expensive per prescription: Stelara at $27K/claim
- Most prescribed: Humira(Cf) Pen with 240,925 claims
- This class represents 2.1% of total Medicare Part D spending
All Biologics & Immunotherapy Drugs
| Drug | Cost | Claims |
|---|---|---|
| Adalimumab | $2.17B | 240,925 |
| Etanercept | $1.12B | 145,737 |
| Ustekinumab | $852.3M | 31,974 |
| Dupilumab | $609.1M | 156,267 |
| Secukinumab | $347.7M | 45,496 |
| Tofacitinib Citrate | $294.4M | 49,478 |
| Abatacept | $216.6M | 36,753 |
| Tocilizumab | $99.5M | 24,891 |
| Infliximab | $25.3M | 3,457 |
| Abatacept/Maltose | $17.2M | 3,809 |