Prescription drug costs in Hawaii Medicare
Hawaii Medicare beneficiaries face some of the highest medication costs in the country, but the 2026 Part D structure — particularly the new $2,100 out-of-pocket cap — has dramatically improved affordability.
The 2026 Part D structure
| Phase | What you pay |
|---|---|
| Deductible (up to $615 max) | 100% until you meet the deductible |
| Initial coverage | Plan copays/coinsurance until you reach $2,100 in OOP costs |
| Catastrophic coverage (after $2,100) | $0 — Medicare and the plan cover everything |
The $2,100 annual out-of-pocket cap is new for 2026 — and a major change from the old "donut hole" structure that ended in 2024. No matter how expensive your medications, you'll never pay more than $2,100 out of pocket for Part D drugs in 2026.
Insulin and vaccine caps
- Insulin: Maximum $35 per 30-day supply (federal cap)
- ACIP-recommended vaccines: $0 cost (shingles, RSV, flu, COVID, pneumonia, hepatitis, others)
The Medicare Prescription Payment Plan
Starting in 2025, Medicare Part D enrollees can opt into the Medicare Prescription Payment Plan, which lets you spread Part D out-of-pocket costs across the calendar year in monthly installments instead of paying all at once at the pharmacy. Useful if you have expensive medications early in the year.
Enrollment is optional and free. Contact your Part D plan to opt in.
Extra Help dramatically reduces costs
If you qualify for Extra Help (LIS), your Part D costs drop further:
- $0 plan premium (for benchmark plans)
- $0 deductible
- $1.55 max generic / $11.20 max brand copay
- $0 cost after the catastrophic threshold
Strategies to lower your prescription costs
- Choose your Part D plan based on YOUR medications. Use Medicare.gov Plan Finder with your specific drug list. The cheapest plan overall is rarely the cheapest for your specific medications.
- Use generic alternatives when available. Most generics are tier 1 with low or $0 copays.
- Use mail-order pharmacy for 90-day supplies. Most plans charge less per pill for 90-day refills.
- Use preferred network pharmacies. Plans often have a "preferred" pharmacy tier with the lowest copays.
- Apply for Extra Help. Even partial Extra Help can save thousands.
- Apply for manufacturer patient assistance programs. Most major drug manufacturers have programs for low-income patients.
- Ask your doctor about therapeutic alternatives. Sometimes a different drug in the same class is much cheaper.
- Shop around within your plan's network. Pharmacy prices for the same drug under the same plan can vary.
Hawaii-specific considerations
- Mail-order pharmacy is especially valuable for neighbor-island residents — no need to physically visit a pharmacy that may be far from home
- Major Hawaii pharmacies in most plan networks: Longs Drugs (CVS-owned), Walmart, Safeway, Foodland, Times, KTA Super Stores, Costco
- Native Hawaiian Health Care System pharmacies may participate in some plan networks
- VA pharmacy for veterans — generally creditable coverage that doesn't require Part D
- TRICARE Pharmacy for military retirees — generally creditable coverage
If you can't afford your medications
- Call your Part D plan's pharmacy line — they may identify lower-cost alternatives
- Apply for Extra Help (LIS) if you haven't
- Apply for manufacturer assistance programs at needymeds.org
- Contact your local Native Hawaiian Health Care System or community health center about prescription assistance
- Sage PLUS at 1-888-875-9229 can help identify resources
Frequently asked questions
$2,100. After you reach $2,100 in out-of-pocket Part D costs, you pay $0 for covered medications for the rest of the calendar year.
Part D premiums vary by region. Hawaii pricing is generally similar to other regions. The cheapest plan for you depends on your specific medications, not the average premium.
Most major Part D plans operate nationally and your coverage continues if you move. However, you should review the new pharmacy network in Hawaii — your usual mainland pharmacy may not be local. Moving triggers an SEP if you want to switch plans.
Worth considering if you have high prescription costs concentrated in a few months (early in the year, for example). It spreads costs evenly across the year. There's no extra fee. Contact your Part D plan to opt in.