Medicare and schizophrenia: Part B, Part D, and the donut hole

Medicare is the federal health insurance program for people 65 and older — and for people of any age who have been on SSDI for 24 months. Many people with schizophrenia end up on Medicare in their 30s or 40s through that SSDI route. The program covers a lot more mental health care than it used to, but it is divided into four parts that interact in complicated ways. This article walks through each.

How people with schizophrenia end up on Medicare

• Turning 65
• Approved for SSDI for 24 months (Medicare kicks in automatically)
• End-stage renal disease or ALS (immediate eligibility)

Many people with schizophrenia have dual eligibility — both Medicare and Medicaid — which dramatically reduces out-of-pocket costs. See our Medicaid article for that side.

Part A — Hospital insurance

Covers inpatient hospitalisation, including psychiatric hospitalisation, plus skilled nursing and some home health. Most people pay no premium for Part A because it was funded through Medicare taxes during their working years (or a spouse's).

Important psychiatric-specific rule: there is a 190-day lifetime limit on inpatient care in a freestanding psychiatric hospital. This limit does not apply to psychiatric care in a general hospital. Plan accordingly with your care team.

Part B — Outpatient medical insurance

This is the workhorse for schizophrenia care. Part B covers:

• Outpatient psychiatry visits
• Therapy with a psychologist, clinical social worker, or now (as of recent expansions) a marriage and family therapist or mental health counsellor
• Partial hospitalisation programs
• Most long-acting antipsychotic injections administered in a clinic (paliperidone, aripiprazole long-acting, risperidone Consta, etc.)
• Lab work — including clozapine ANC monitoring
• Annual wellness visit
• Annual depression screening (no copay)

Part B has a monthly premium (income-based) and a deductible, then 20% coinsurance for most services. People who can't afford the cost-sharing should look at Medicaid (for dual eligibles) or a Medicare Savings Program — see medicare.gov/basics/costs/help/medicare-savings-programs.

Part D — Prescription drug coverage

Part D is what pays for your oral antipsychotics: olanzapine, risperidone, aripiprazole, clozapine, lurasidone, paliperidone tablets, and so on. Most long-acting injectable antipsychotics that are administered in clinic are billed under Part B instead — confusing but important to know.

Plans vary significantly in:

• Which drugs are on the formulary
• Tier placement (and therefore copay)
• Prior authorisation requirements
• Step therapy rules
• Pharmacy network

Antipsychotics are one of the "protected classes" in Medicare Part D — meaning Part D plans must cover essentially all antipsychotic drugs. This is a critical protection. If a plan refuses to cover your specific medication, you may have grounds for an exception or appeal.

The donut hole — what's left of it

The infamous Part D "donut hole" (coverage gap) was the donut-shaped stretch where you paid much more for drugs after hitting an initial threshold. Recent reforms — including the Inflation Reduction Act — have largely closed it. Starting in 2025, there is now an annual out-of-pocket cap on Part D drug costs of $2,000 (indexed annually). After you hit that cap, Medicare covers your prescriptions for the rest of the year.

For someone on multiple antipsychotics or expensive medications like long-acting paliperidone tablets, this cap is a substantial financial protection. Always confirm current rules at medicare.gov/drug-coverage-part-d.

Extra Help (Low-Income Subsidy)

If your income is below roughly 150% of the federal poverty level, you may qualify for "Extra Help" — also called the Low-Income Subsidy (LIS). It dramatically lowers Part D premiums, deductibles, and copays. Many dual-eligible people qualify automatically.

Apply at ssa.gov/medicare/part-d-extra-help. This single benefit is worth thousands of dollars per year for many people with schizophrenia.

Part C — Medicare Advantage

A private plan that bundles A, B, and usually D into one product. Often includes extras (vision, dental, gym memberships). Tradeoffs:

• Often lower upfront cost
• Network restrictions — your psychiatrist may not be in network
• Prior authorisation more common
• Out-of-pocket maximum, which Original Medicare doesn't have

For people with established psychiatry relationships and complex medication needs, Original Medicare plus a standalone Part D plan often gives more flexibility. For people with simpler needs and tight budgets, Medicare Advantage may be cheaper. There is no universal answer.

How to choose a Part D plan

1. List every medication you take, with dose and frequency
2. List your preferred pharmacy
3. Use the Medicare Plan Finder — enter your meds and zip code, and it ranks plans by your projected total annual cost
4. Look at the formulary, not just premium
5. Check whether your antipsychotic requires prior authorisation
6. Re-shop annually during open enrollment (Oct 15 – Dec 7)

State Health Insurance Assistance Programs (SHIPs)

Every state has a free SHIP that provides one-on-one Medicare counselling. They are not affiliated with insurance companies, do not sell anything, and can walk you through the choice. Find yours at shiphelp.org.

Common pitfalls

• Missing your Initial Enrollment Period — this can lead to lifelong premium penalties
• Not realising long-acting injectables are billed under Part B
• Choosing a plan based on premium alone, then getting hit with high copays for your antipsychotic
• Not applying for Extra Help when income qualifies
• Failing to update plan choice during open enrollment as drug needs change

Getting help

• medicare.gov — official portal
• 1-800-MEDICARE (1-800-633-4227)
• SHIP counsellors (free, unbiased)
• NAMI HelpLine
• For Part D appeals: CMS Part D appeals page

This article is for educational purposes only and is not medical advice, legal advice, or financial advice. Rules and benefit amounts change; verify current details with the relevant agency or a qualified professional. If you or someone you know is in crisis, call or text 988 in the US, or your local emergency number.