Medicare Coverage for Asthma (2026)

What Medicare covers for asthma

• Rescue inhalers (albuterol): Tier 1 on most Part D plans — typically $0–$10/mo.
• Controller inhalers (Advair, Symbicort, Trelegy, Breo): Brand names typically Tier 3; generic equivalents (fluticasone-salmeterol) often Tier 2.
• Biologics (Xolair, Dupixent, Tezspire, Nucala): Tier 5 specialty under Part D, but capped at $2,000 annual out-of-pocket in 2026.
• Pulmonologist visits: Under Part B at 80% after deductible.
• Pulmonary function tests: Spirometry, FeNO covered under Part B.
• Allergy testing/immunotherapy: Skin testing + allergy shots covered.

Best plan structure for asthma

For mild-to-moderate asthma, almost any plan works — generic albuterol is cheap, controller inhalers covered everywhere. Choose based on other factors.

For severe asthma on biologics, dig into the Part D formulary. Some plans require step therapy through cheaper inhalers first. The $2,000 cap means biologic costs are predictable in 2026 regardless of plan, but speed of access varies.