Doctor Knows Best Act of 2025

HR 639, the "Doctor Knows Best Act of 2025," prohibits health insurers and federal health programs (like Medicare) from requiring prior authorization, step therapy, or medical necessity reviews for covered medical services. This directly affects patients (who would face fewer delays in care), doctors (who gain more autonomy in treatment decisions), and insurers/federal programs (which must eliminate these review processes). The bill bans these requirements for all covered items/services under private health plans starting January 1, 2026, and for federal programs beginning the same date. It does not change coverage eligibility but removes administrative barriers to accessing approved treatments.