Medicare in New Mexico: 2026 Plans, Costs, and Enrollment Guide
- 69 Medicare Advantage plans available statewide (New Mexico: 33 counties; CMS 2026 Fact Sheet)
- 25 Medigap carriers offering Plan G (TPP rate database, CY2026)
- 12 standalone Part D plans in PDP Region 22 (New Mexico-only)
- Avg MA premium $14.14/mo in 2026 (was $28.79 in 2025) (CMS 2026 Fact Sheet)
- LIS benchmark: $28.41/mo (Region 22)
New Mexico Medicare Snapshot
New Mexico has 69 Medicare Advantage plans available statewide for 2026 (CMS 2026 Medicare MA & Part D Landscape State-by-State Fact Sheet), with the specific plans offered varying by county within New Mexico’s 33 counties. Most New Mexico Medigap policies are attained-age rated.
The average monthly MA premium in New Mexico is $14.14 in 2026 (changed from $28.79 in 2025; CMS 2026 Fact Sheet). The standard Medicare Part B premium is $202.90/month in 2026.
| Metric | New Mexico 2026 | Source |
|---|---|---|
| MA plans available | 69 statewide (New Mexico: 33 counties) | CMS 2026 MA & Part D Landscape Fact Sheet |
| Avg MA premium | $14.14/mo (2025: $28.79) | CMS 2026 MA & Part D Landscape Fact Sheet |
| Medigap carriers (Plan G) | 25 (most carriers use attained-age) | TPP internal data, CY2026 |
| HDG carriers | 20 (most carriers use attained-age) | TPP internal data, CY2026 |
| Standalone Part D plans | 12 (PDP Region 22 — New Mexico-only) | CMS 2026 MA & Part D Landscape Fact Sheet |
| Part D LIS benchmark (Region 22) | $28.41/mo | CMS CY2026 Regional Rates & Benchmarks |
Plan Types Available in New Mexico
Medicare Advantage (Part C)
New Mexico offers 69 Medicare Advantage plans statewide for 2026 (CMS 2026 Fact Sheet). Top MA carriers include UnitedHealthcare, Humana, and Devoted Health. Check Medicare Plan Finder for per-plan star ratings in your county.
Medigap (Medicare Supplement)
New Mexico uses the standard federal Medigap plan letters (A, B, C, D, F, G, K, L, M, N, plus HDG and HDF). 25 carriers offer Plan G in New Mexico in the TPP rate database (CY2026, non-tobacco, ages 65–85). Plans C, F, and High-Deductible Plan F (HDF) are closed to anyone who first became Medicare-eligible on or after January 1, 2020 (under MACRA 2015); beneficiaries who were Medicare-eligible before that date may still buy Plans C, F, or HDF from carriers that continue to offer them. High-Deductible Plan G (HDG) is the post-2020 high-deductible Medigap option and is offered by 20 New Mexico carriers.
Most New Mexico Medigap policies are attained-age rated. See our MA vs Medigap comparison →
Standalone Part D (Prescription Drug Plans)
New Mexico is in CMS PDP Region 22 (New Mexico-only). For 2026, there are 12 standalone PDP plans available (CMS 2026 Fact Sheet).
Costs in New Mexico
Medicare Advantage Premiums
The average monthly MA premium in New Mexico is $14.14 in 2026 (changed from $28.79 in 2025; CMS 2026 Fact Sheet). The standard Medicare Part B premium is $202.90/month in 2026.
Medigap Premiums — Plan G and HDG
Most New Mexico Medigap policies are attained-age rated. Across the 25 New Mexico Plan G carriers (non-tobacco, ages 65–85), Plan G monthly premiums in 2026 range from approximately $115 to $528/month(TPP rate database, CY2026).
High-Deductible Plan G (HDG) is offered by 20 New Mexico carriers; premiums range from approximately $95 to $491/month(TPP rate database, CY2026). HDG works well for beneficiaries who want catastrophic protection at a lower monthly cost and can absorb the high-deductible amount (CMS’s 2026 Medigap high-deductible options notice publishes the current dollar figure).
Part D Costs and the LIS Benchmark
For 2026, New Mexico (PDP Region 22 — New Mexico-only) has 12 standalone PDP plans (CMS 2026 Fact Sheet). The CMS Low Income Subsidy (LIS / Extra Help) benchmark premium for Region 22 is$28.41/month (CMS CY2026 Regional Rates and Benchmarks).
New Mexico-Specific Medicare Rules
No State Medigap Birthday Rule
New Mexico does not have a state Medigap Birthday Rule or Anniversary Rule. Outside of the federal 6-month Medigap Open Enrollment Period and qualifying federal guaranteed-issue events, most Medigap purchases in New Mexico are subject to medical underwriting at the carrier's discretion.
Medicare Savings Programs (MSPs)
New Mexico offers Medicare Savings Programs (MSPs) through New Mexico Medicaid (Centennial Care):
- QMB (Qualified Medicare Beneficiary): Covers Part A and Part B premiums, deductibles, and cost-sharing.
- SLMB (Specified Low-Income Medicare Beneficiary): Covers Part B premiums only.
- QI (Qualifying Individual): Also covers Part B premiums; subject to annual appropriations.
Apply through New Mexico Medicaid (Centennial Care) or contact New Mexico SHIP (1-800-432-2080) for free enrollment assistance. MSP enrollment also automatically qualifies you for Extra Help / LIS on Part D. Learn more about MSPs →
New Mexico SHIP
New Mexico SHIP is New Mexico's federally designated State Health Insurance Assistance Program (SHIP). It provides free, unbiased Medicare counseling statewide through trained volunteers.
Phone: 1-800-432-2080
Website: nmaging.state.nm.us/ship.aspx
Enrolling in Medicare in New Mexico
Standard Enrollment Periods
- Initial Enrollment Period (IEP): 7-month window centered on your 65th birthday month. Enroll at ssa.gov or call 1-800-772-1213.
- Annual Election Period (AEP): October 15 – December 7 each year.
- Medicare Advantage Open Enrollment Period (OEP): January 1 – March 31.
- Federal 6-month Medigap OEP: Starts when you are 65+ and enrolled in Part B.
- Special Enrollment Periods (SEPs): Learn more →
New Mexico SHIP Counseling
Contact New Mexico SHIP at 1-800-432-2080 for free one-on-one Medicare guidance statewide.