Medicare Advantage plans face tightening restrictions on extra benefits, as federal regulators reject proposals to cover unconventional perks like medical marijuana, streaming services, and shopping club memberships.

The Centers for Medicare and Medicaid Services (CMS) denied several insurers' requests to add these supplemental benefits to their 2025 plans. The rejections signal a shift in regulatory posture toward limiting what Medicare Advantage plans can offer beyond core medical coverage. Major insurers including UnitedHealth Group (UNH), Humana (HUM), and Anthem (ANTM) operate extensive Medicare Advantage networks, which have grown to cover roughly 28 million beneficiaries, or half of all Medicare enrollees.

Medicare Advantage plans legally bundle government-funded medical benefits with additional perks designed to attract seniors. Historically, CMS approved supplements including fitness programs, meal delivery, transportation, and dental coverage. But the agency now applies stricter scrutiny to what qualifies as a reasonable supplemental benefit tied to health outcomes.

The marijuana proposal failed because CMS determined insufficient evidence linked the benefit to improved health management. Streaming services and shopping clubs fell outside CMS's interpretation of medically necessary add-ons altogether. The agency views these benefits as lifestyle enhancements rather than clinical supports.

More consequential changes arrive in 2027. CMS announced plans to revise supplemental benefit rules, likely narrowing what plans can offer. The shift reflects mounting pressure on Medicare Advantage's financial sustainability. Plans have suffered margin compression from medical loss ratios climbing above targets, and the government tightens reimbursement rates annually. Extra benefits drive enrollment but increase costs. Regulators appear concerned that aggressive benefit packages mask deteriorating plan profitability or transfer risk inadequately priced into federal payments.

Insurers face a delicate trade-off. Scaled-back benefits risk enrollment declines as seniors compare plan options during open enrollment. Yet overly generous supplements invite regulatory pushback and audit scrutiny. The 2027 rule changes will clarify boundaries, but uncertainty persists on how aggressively CMS will restrict supplemental offerings.

Wall Street watches UNH, HUM, and ANTM closely on this front. Investors monitor Medicare Advantage enrollment trends, medical loss ratios, and CMS reimbursement rates annually. Watch for how aggressively insurers defend premium supplemental benefits against forthcoming 2027 regulatory guidance.