Medicare in New Mexico
Original Medicare, Medicare Advantage, Part D prescription drug, and Medigap coverage in New Mexico

In this article
- Medicare enrollment in New Mexico
- Medicare Advantage plan availability and enrollment in New Mexico
- Medicare supplement (Medigap) plan availability in New Mexico
- Medicare Part D availability and enrollment in New Mexico
- What additional resources are available for Medicare beneficiaries and their caregivers in New Mexico?
Medicare enrollment in New Mexico
There were 473,506 residents enrolled in Medicare in New Mexico as of January 2026.1
Most individuals become eligible for Medicare enrollment at age 65, but younger individuals become eligible for Medicare if they have been receiving disability benefits for 24 months, or if they have end-stage renal disease (ESRD) or amyotrophic lateral sclerosis (ALS). About 10% of New Mexico Medicare beneficiaries are under 65, compared to about 9% nationwide.12
- Read our guide to Medicare’s open enrollment.
- Understand the difference between Medigap, Medicare Advantage, and Medicare Part D.
- Learn about how New Mexico Medicaid can help Medicare beneficiaries with limited income and assets.
Medicare Advantage plan availability and enrollment in New Mexico
Medicare Advantage plans are available statewide in New Mexico,3 but availability varies by county: On average, there are 24 Medicare Advantage plans from which to choose for 2026 coverage.4
For 2026, the total number of Medicare Advantage plans available in New Mexico is 73 – up from 66 in 2025 (but again, not all plans are available in all areas).5
As of January 2026, there were 239,822 New Mexico Medicare beneficiaries with Medicare Advantage coverage.6 The other 233,684 New Mexico Medicare beneficiaries had Original Medicare as of early 20264.1
Learn more about Medicare Advantage, Medicare’s annual open enrollment period, and the Medicare Advantage open enrollment period.

Learn about Medicare plan options in New Mexico by contacting a licensed agent.
Medicare supplement (Medigap) enrollment and regulations in New Mexico
Medigap policies (also known as Medicare Supplement insurance plans) will pay some or all of the out-of-pocket costs that beneficiaries would otherwise have to pay if they had only Original Medicare.
Learn more about what Medigap covers and how the plans are standardized.
According to an AHIP analysis, there were 70,563 New Mexico Medicare beneficiaries with Medigap coverage as of December 2023.7
According to Medicare’s Medigap plan finder tool, there are 21 insurers that offer Medigap plans in New Mexico in 2026.8
Unlike other Medicare plan coverage (Medicare Advantage and Medicare Part D prescription drug plans), there is no annual enrollment period window for Medigap plans. Instead, federal rules provide a one-time six-month window when Medigap coverage is guaranteed issue. This window starts when a person is at least 65 and enrolled in Medicare Part B. (You must be enrolled in both Medicare Part A and Medicare Part B to buy a Medigap plan.)
But starting in 2027, New Mexico will join the list of states with a Medigap “birthday rule.” This will allow people with Medigap an annual guaranteed-issue opportunity, linked to their birthday, to switch to any other Medigap plan that offers equal or lesser benefits. This is a result of legislation enacted in New Mexico in 2026.9
Individuals who aren’t yet 65 can enroll in Medicare if they’re disabled and have been receiving disability benefits for at least two years. About 10% of New Mexico Medicare beneficiaries are under age 65.10 Federal rules do not guarantee access to Medigap plans for people who are under 65. Although the majority of the states have taken action to ensure access to Medigap coverage for disabled enrollees, New Mexico is not among them.
The New Mexico Office of the Superintendent of Insurance confirmed that Medigap insurers in the state are not required to offer coverage to applicants under the age of 65. Insurers can do so voluntarily, but none were doing so as of 2026.8
However, New Mexico is one of several states where pre-Affordable Care Act (ACA) high-risk pools remain operational, with coverage available to supplement Medicare if the enrollee is unable to obtain Medigap coverage. This program is called the New Mexico Medical Insurance Pool.
Disabled Medicare beneficiaries have access to the regular six-month Medigap Open Enrollment Period when they turn 65. At that point, they can enroll in any Medigap plans available in their area.
Medicare Part D plan availability and enrollment in New Mexico
In terms of plan availability, there are 11 stand-alone Medicare Part D prescription drug plans in New Mexico in 2026, with premiums that start at $0 per month.5
A total of 374,574 New Mexico Medicare beneficiaries had Medicare Part D prescription drug coverage as of January 2026.1 That included 147,306 with stand-alone Medicare Part D prescription drug plans, and 227,268 with Part D prescription drug coverage integrated with Medicare Advantage.1
Learn how Medicare Part D prescription drug coverage works, what it pays for, how and when to enroll.

What additional resources are available for Medicare beneficiaries and their caregivers in New Mexico?
- You can contact the New Mexico State Health Insurance Assistance Program with questions related to Medicare eligibility in New Mexico and Medicare enrollment in New Mexico.
- The New Mexico Office of the Superintendent of Insurance (Russell Toal) can provide assistance and customer service with a variety of insurance-related issues, and they license and oversee the health insurers, brokers, and agents that offer coverage in the state.
- The page details how New Mexico Medicaid can provide assistance to Medicare beneficiaries in the state who have limited financial means.
Looking for more information about other options in your state?
Need help navigating health insurance options in New mexico?
Explore more resources for options in NM including ACA coverage, short-term health insurance, dental and Medicaid.
Speak to a sales agent at a licensed insurance agency.
Footnotes
- “Medicare Monthly Enrollment – New Mexico” Centers for Medicare & Medicaid Services Data. Accessed May 2026. ⤶ ⤶ ⤶ ⤶ ⤶
- “Medicare Monthly Enrollment – US” Centers for Medicare & Medicaid Services Data. Accessed May 2026 ⤶
- “Medicare Open Enrollment in New Mexico, 2026” Centers for Medicare & Medicaid Services. Sep. 26, 2025 ⤶
- “Medicare Advantage 2026 Spotlight: First Look” KFF.org. Dec. 9, 2025 ⤶
- “Fact Sheet: Medicare Open Enrollment for 2026” Centers for Medicare & Medicaid Services. Sep. 26, 2025 ⤶ ⤶
- “Medicare Monthly Enrollment – New Mexico” Centers for Medicare & Medicaid Services Data. Accessed April 2026. ⤶
- “The State of Medicare Supplement Coverage” AHIP. May 2025 ⤶
- “Explore your Medicare coverage options” Medicare.gov. Accessed May 10, 2026 ⤶ ⤶
- “Expanding Medicare Supplemental Consumer Protections to over 70,000 New Mexicans” New Mexico Aging Services. Accessed May 10, 2026 ⤶
- “Medicare Monthly Enrollment – New Mexico” Centers for Medicare & Medicaid Services Data. Accessed May 10, 2026 ⤶