Title 42 › CHAPTER 7 — SOCIAL SECURITY › SUBCHAPTER XVIII — HEALTH INSURANCE FOR AGED AND DISABLED › Part D — Voluntary Prescription Drug Benefit Program › subpart 3 — application to medicare advantage program and treatment of employer-sponsored programs and other prescription drug plans › § 1395w–131
Starting January 1, 2006, Medicare Advantage (MA) organizations must make sure that any MA plan they offer in a given area either includes required prescription drug coverage or that the organization offers another plan in the same area that does. MA organizations may not offer prescription drug benefits (beyond original Medicare Parts A and B) through MSA plans. Other MA plans can only offer drug coverage if that coverage meets the rules for qualified prescription drug coverage. "Required coverage" for an MA–PD plan means either basic prescription drug coverage or supplemental drug coverage that does not charge a monthly supplemental premium because a rebate is used to offset that premium. The rules also say that people are only treated as having been moved into an MA–PD plan by default if their prior plan already had some drug coverage. If someone stops an MA–PD plan in their first year, they may sign up for a standalone Part D plan when they return to original Medicare. If an organization stops offering MA plans that lack qualified drug coverage, affected enrollees are assumed to go back to original Medicare unless they actively pick an MA–PD plan; that move counts as an involuntary termination for certain purposes and must be explained in plan materials. Part D rules generally apply to MA–PD drug benefits, though the Secretary can waive duplicate or conflicting rules and may allow MA-owned pharmacies (not mail-order) to count as sufficient access if the network is adequate. Special exceptions apply to private fee-for-service plans that offer drug coverage: they are not required to provide negotiated pharmacy prices, may be exempt from some pharmacy access and disclosure rules if they cover drugs from all pharmacies without extra cost-sharing, are not required to have certain drug management or therapy programs, have reinsurance and other financial rules adjusted by the Secretary, and are exempt from some bidding and risk corridor rules. Organizations providing drugs under reasonable cost contracts or PACE programs may follow similar Part D rules if they choose to offer qualified drug coverage, but they cannot enroll people who are not already in that contract or program, and their bids are not counted in the national or benchmark bid calculations.
Full Legal Text
The Public Health and Welfare, Source: USLM XML via OLRC
Legislative History
Reference
Citation
42 U.S.C. § 1395w–131
Title 42, The Public Health and Welfare
Last Updated
Sep 22, 2026
Release point: 119-110