Medicare Supplement Plan N in California — 2026 Rates & Guide

This guide covers Medicare Supplement Plan N in California — 2026 average premiums by age, the copay structure you'll pay, how Plan N compares to Plan G in California, and step-by-step enrollment guidance.

Plan N Coverage Overview

Medicare Supplement Plan N provides broad coverage at premiums typically 15–25% lower than Plan G. The trade-off: you pay small copayments for certain doctor and emergency room visits, and Plan N does not cover Part B excess charges.

Plan N benefits are federally standardized — every insurer selling Plan N in California must provide identical coverage. The only differences between insurers are the monthly premium and their premium increase track record.

What Plan N Covers

• Part A coinsurance & hospital costs (up to 365 days after Medicare): ✓ Fully covered
• Part A deductible ($1,676 in 2026): ✓ Fully covered
• Part A hospice care coinsurance or copayment: ✓ Fully covered
• Part B coinsurance or copayment (20% of outpatient costs): ✓ Fully covered — Up to $20 copay for some office visits; up to $50 ER copay if not admitted
• Part B deductible ($257 in 2026): ✗ Not covered — you pay this cost
• Part B excess charges (above Medicare-approved amount): ✗ Not covered — you pay this cost
• Skilled nursing facility care coinsurance: ✓ Fully covered
• Foreign travel emergency coverage (up to plan limits): ✓ Fully covered

Source: CMS standardized Medigap benefit chart. CMS Publication 02110.

Understanding Plan N Copayments

Plan N's lower premium comes with two types of cost-sharing to understand before enrolling:

Breakeven analysis for California: At ~$30/month premium savings, Plan N saves $$360/year vs Plan G. If you have 10 doctor visits per year (worst case: 10 × $20 = $200 in copays) plus the $257 Part B deductible, your net savings would still be approximately $breakeven/year. Plan N is typically better value unless you have very frequent doctor visits.

Plan N Premiums in California by Age (2026)

Premiums for Plan N in California vary by insurer, age, gender, and tobacco use. Estimates below are for a non-smoking female. Men typically pay 5–10% more.

* Estimates use typical progression factors for community-rated states. California uses community rating — premiums are the same regardless of age at enrollment. Verify current rates at Medicare.gov.

California Medigap Rating Rules: Community Rating

California requires community rating — all policyholders pay the same premium regardless of age. Your Plan N premium won't automatically increase just because you get older, although it may increase due to general medical cost trends. This is a meaningful advantage in California compared to attained-age states.

California's Birthday Rule Applies to Plan N

California has a Birthday Rule: during the 30 days following your birthday each year, you may switch to any Medigap plan with equal or lesser benefits without medical underwriting, regardless of health status. This means you can shop for a lower-premium Plan N each year without medical underwriting. If you enroll in Plan N and find your insurer is raising rates faster than competitors, you can switch to another insurer's Plan N (equal benefits) during your birthday window without any health questions.

Top Plan N Insurers in California

Leading insurers offering Medicare Supplement Plan N in California include: UnitedHealthcare, Blue Shield of California, Anthem BCBS.

Since Plan N coverage is identical across insurers, focus your comparison on:

• Current monthly premium (get quotes from all)
• Annual premium increase history for Plan N in California
• A.M. Best financial strength rating (look for A- or better)
• NAIC complaint ratio (lower is better)

How to Enroll in Plan N in California

1. Confirm you're enrolled in Medicare Parts A and B. You must have both to be eligible for any Medigap plan.
2. Enroll during your Open Enrollment Period — the 6-month window starting when you're both age 65 and enrolled in Part B. Guaranteed issue rights apply: no insurer in California can deny you Plan N or charge more based on health.
3. Get quotes from multiple insurers. Use Medicare.gov Plan Finder or a licensed broker who represents multiple companies in California.
4. Confirm your doctors accept Medicare assignment. Since Plan N doesn't cover excess charges, verify that your regular doctors and specialists accept Medicare assignment before enrolling.
5. Add a Part D drug plan. Plan N does not cover prescription drugs — enroll in a separate Part D plan during your Initial Enrollment Period to avoid late enrollment penalties.