Managing prescription drug costs is one of the biggest concerns for Medicare beneficiaries in New Mexico. Understanding how Part D formularies work, how to compare drug costs across plans, and how to access savings programs can significantly reduce your out-of-pocket spending.
Understanding Formularies
Every Part D and Medicare Advantage plan has a formulary—a list of covered drugs organized into tiers. Lower tiers generally have lower copays:
| Tier | Drug Type | Typical Cost |
|---|---|---|
| Tier 1 | Preferred generics | Lowest copay ($0–$15) |
| Tier 2 | Non-preferred generics | Low copay ($15–$40) |
| Tier 3 | Preferred brand-name | Moderate copay ($40–$90) |
| Tier 4 | Non-preferred brand-name | Higher copay or coinsurance |
| Tier 5 | Specialty drugs | Highest cost (25–33% coinsurance) |
2026 Part D Out-of-Pocket Cap
New protection: Starting in 2026, your total out-of-pocket spending on Part D drugs is capped at $2,100 per year. After reaching this amount, you pay $0 for covered drugs for the rest of the year. You can also spread costs monthly through the Medicare Prescription Payment Plan.
Tips for Lowering Drug Costs in New Mexico
- Compare plans annually: Formularies change every year. A drug that was Tier 1 last year could move to Tier 3. Compare Part D plans.
- Ask about generics: Generic drugs can cost 80-85% less than brand-name equivalents
- Use preferred pharmacies: Many plans offer lower copays at preferred pharmacies
- Mail-order options: 90-day supplies through mail order often cost less than 3 monthly fills
- Apply for Extra Help: If you have limited income, Extra Help can reduce your drug costs dramatically
- Check manufacturer programs: Many drug manufacturers offer patient assistance programs
Find the Plan That Covers Your Medications Best
Enter your specific medications and preferred pharmacy to see which plans offer the lowest total annual cost in your NM county.