Medigap in Arizona: 2026 Average Premiums
| Plan | Estimated Monthly Premium | Part A Deductible | Part B Coinsurance |
|---|---|---|---|
| Plan G (most popular) | $128/month | Covered | 100% covered |
| Plan N | $105/month | Covered | Covered (with copays up to $20) |
| Plan F (pre-2020 only) | $147/month | Covered | 100% covered |
| Plan K | $58/month | 50% covered | 50% covered |
| Plan L | $77/month | 75% covered | 75% covered |
Medicare Supplement Insurance in Arizona
Medicare Supplement (Medigap) insurance fills the gaps in Original Medicare coverage in Arizona. The most popular plan — Plan G — has an average monthly premium of $128 in Arizona, covering the Part A deductible ($1,676 per benefit period in 2026), Part B coinsurance (20% of all covered services), skilled nursing facility coinsurance, and foreign travel emergency coverage. The only gap Plan G leaves is the Part B deductible ($240/year).
Medigap Plan Comparison in Arizona
| Benefit | Plan G | Plan N | Plan F* | Plan K | Plan L |
|---|---|---|---|---|---|
| Part A coinsurance and hospital costs | ✓ | ✓ | ✓ | ✓ | ✓ |
| Part B coinsurance/copayment | ✓ | ✓ (copays) | ✓ | 50% | 75% |
| Blood (first 3 pints) | ✓ | ✓ | ✓ | 50% | 75% |
| Part A hospice coinsurance | ✓ | ✓ | ✓ | 50% | 75% |
| Skilled nursing facility coinsurance | ✓ | ✓ | ✓ | 50% | 75% |
| Part A deductible | ✓ | ✓ | ✓ | 50% | 75% |
| Part B deductible | ✗ | ✗ | ✓ | ✗ | ✗ |
| Part B excess charges | ✓ | ✗ | ✓ | ✗ | ✗ |
| Foreign travel emergency (80%) | ✓ | ✓ | ✓ | ✗ | ✗ |
| Estimated monthly premium in Arizona | $128 | $105 | $147* | $58 | $77 |
*Plan F is only available to people who became eligible for Medicare before January 1, 2020.
When to Buy Medigap in Arizona
The best time to buy Medigap in Arizona is during your 6-month Medigap Open Enrollment Period, which begins the month you turn 65 and are enrolled in Medicare Part B. During this period, insurers in Arizona cannot deny you coverage or charge higher premiums based on pre-existing conditions. After this window closes, insurers can use medical underwriting in most states, potentially denying coverage or charging significantly higher premiums.
Medigap vs. Medicare Advantage in Arizona
Choosing between Medigap and Medicare Advantage in Arizona depends on your health needs and preferences. Medigap + Part D gives you nationwide provider access, predictable costs, and no prior authorization requirements — ideal for people with complex health needs or who travel frequently. Medicare Advantage (average premium: $8.2/month in Arizona) typically has lower premiums but network restrictions and prior authorization requirements. The average MA plan in Arizona is rated 4.1 stars by CMS.
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