Best Supplemental Health Insurance for Seniors With Medicare

The best supplemental health insurance for seniors with Medicare depends on the balance you want between monthly premiums and out-of-pocket costs. Plan G offers broad cost-sharing coverage but leaves the Part B deductible to you; Plan N may cost less but includes certain visit copayments and does not cover Part B excess charges. Compare the same plan letter across insurers, then check enrollment rights and local prices.
What is the best supplemental insurance to go along with Medicare?
Plan G, Plan N, and high-deductible Plan G are options to compare with Original Medicare, but the best fit depends on which costs you want to insure and what premium you can obtain. Medigap supplements Original Medicare by helping pay certain Medicare cost-sharing expenses. It does not work alongside Medicare Advantage: Medicare.gov says a person enrolled in Medicare Advantage cannot have Medigap coverage.
According to Medicare.gov’s benefits comparison, Plan G covers Part A coinsurance and hospital costs for up to 365 additional days, Part B coinsurance, the Part A deductible, and Part B excess charges. It does not pay the Part B deductible. Plan N covers the Part B coinsurance or copayment benefit, but you may owe up to $20 for some office visits and up to $50 for emergency room visits that do not result in inpatient admission. Plan N also does not cover Part B excess charges.
In 2026, Medicare.gov says the high-deductible versions of Plans F and G require you to pay up to $2,950 in Medicare-covered costs before the policy pays. That deductible changes the trade-off: the option may suit someone prioritizing a lower premium, but the deductible creates a larger amount to cover before benefits begin. Plan G and Plan N both cover 80% of foreign-travel emergency care, subject to plan limits, according to Medicare.gov.
| Option | Who it may suit | Cost information | Key limitation |
|---|---|---|---|
| Plan G | Someone seeking coverage for several listed Medicare cost-sharing items, including Part B excess charges | Premium varies by insurer and location; specific average not published | Does not cover the Part B deductible |
| Plan N | Someone willing to pay certain visit copayments and account for possible excess charges | Premium varies by insurer and location; specific average not published | Up to $20 for some office visits and up to $50 for qualifying emergency room visits; no Part B excess-charge coverage |
| High-deductible Plan G | Someone considering a high-deductible version of Plan G | Premium varies; specific average not published | In 2026, beneficiary pays up to $2,950 in Medicare-covered costs before the policy pays |
| Medicare Advantage | Someone comparing a private Medicare plan with Original Medicare and Medigap | Not published in the provided sources | May require network and service-area providers for non-emergency care; cannot be paired with Medigap |
A practical annual-cost worksheet can keep the comparison grounded in your circumstances. For each available quote, add twelve months of premium to your expected visit copayments and any Part B excess charges you may owe. For high-deductible Plan G, also account for the deductible amount that applies before the policy pays. The provided sources do not give local premiums or your expected use, so obtain official quotes and use your own likely care pattern rather than assuming one plan is always cheaper overall.

What is the best health insurance for seniors on Medicare?
The best arrangement depends on whether provider flexibility, added cost protection, prescription coverage, or network-based coverage matters most. With Original Medicare, beneficiaries can generally use any doctor or hospital that takes Medicare anywhere in the United States. Adding Medigap can help with specified cost sharing, while a separate Part D plan can provide prescription drug coverage.
Medigap policies sold after 2005 do not include prescription coverage, Medicare.gov explains. Original Medicare beneficiaries who want drug coverage can join a separate Medicare drug plan. Most Medicare Advantage plans include Part D, but Medicare Advantage may require use of a provider network and service area for non-emergency care. Medigap cannot pay Medicare Advantage plan costs.
Original Medicare usually has no yearly out-of-pocket limit unless you have supplemental coverage. Medicare Advantage plans do have a yearly limit for covered Medicare services, according to Medicare.gov. These arrangements solve different problems: Medigap supplements cost sharing while preserving access to participating Medicare providers, whereas Medicare Advantage combines Medicare coverage through a plan that may use networks. Review drug coverage separately if choosing Original Medicare with Medigap.
For a location-specific view of which standardized options are sold, see Medicare Supplement Plans by State: What Can I Buy? A useful comparison sequence is to identify the coverage arrangement first, confirm that your providers participate where applicable, then compare the plan benefits and total expected cost.
Do doctors prefer Medigap or Medicare Advantage?
Doctors do not have a single preference established by the provided sources; what matters to a patient is whether a provider accepts Medicare or participates in a particular Medicare Advantage network. With Original Medicare, you can generally use any doctor or hospital that takes Medicare anywhere in the U.S. Medicare Advantage plans may limit non-emergency care to a network and service area.
KFF analyzed 2022 physician and plan-directory data and found that Medicare Advantage enrollees had access, on average, to 48% of the physicians available to traditional Medicare beneficiaries in their area. The range varied: one-fifth of enrollees were in plans that included 32% or fewer of locally available traditional Medicare physicians, while one-fifth had access to plans including at least 63%. Across the 30 counties with the largest Medicare Advantage enrollment, average access ranged from 18% in San Diego, California, to 58% in Pima County, Arizona.
Those figures describe network breadth, not a doctor’s personal preference or the availability of a specific clinician today. KFF notes that traditional Medicare beneficiaries can generally see participating Medicare physicians who accept new patients, while Medicare Advantage enrollees may face higher cost sharing for providers outside their plan network. Before choosing, check whether your clinicians accept Medicare or appear in the specific plan’s network, and verify the terms for non-emergency care.
What is the average cost of supplemental insurance with Medicare?
The provided sources do not publish a national average premium for Medigap, and a single average would not tell you what a policy costs in your area. Medicare.gov says premiums vary widely by insurer, plan, and location, and typically increase each year. The beneficiary pays the private insurer monthly for Medigap in addition to the Medicare Part B premium; Medicare does not pay the Medigap premium.
Because benefits for the same lettered plan are standardized across insurers, the central price comparison is between policies with the same letter. Medicare.gov notes that companies can charge substantially different premiums for the same coverage. Discounts, medical underwriting when you do not have protected enrollment rights, and whether the policy has a high-deductible option can also affect the premium.
Use this four-step comparison to turn quotes into a decision:
- Choose the plan letter. Compare Plan G with Plan G, or Plan N with Plan N, so the benefit design stays consistent.
- Get official quotes. Record each monthly premium and ask how the insurer prices the policy. Medicare.gov recommends comparing the same standardized plan across insurers and obtaining official quotes.
- Check future pricing. Premiums typically increase each year. Ask each insurer for its rate-increase history; the provided sources establish that premiums typically rise but do not publish individual companies’ histories.
- Estimate annual spending. Multiply the premium by twelve, then add likely copayments and any relevant uncovered amounts. For Plan N, include possible office or emergency-room copayments and consider Part B excess charges; for high-deductible Plan G, account for the deductible.
Insurer rates and available plans can vary by state. Medicare.gov recommends contacting the State Health Insurance Assistance Program (SHIP) for free local counseling if you want help comparing quotes and enrollment rules.
Frequently Asked Questions
Is Plan G or Plan N a better value for me?
Plan G may fit someone who prefers broader coverage of Medicare cost sharing and wants coverage for Part B excess charges, while Plan N may fit someone willing to handle certain copayments and possible excess charges in exchange for a potentially lower premium. Compare the actual quotes available in your location and estimate annual costs using your expected visits and potential excess charges. The sources do not publish a universal premium difference between the plans.
Do Medigap policies from different companies cover the same benefits?
Policies with the same letter provide standardized benefits, so Plan G benefits are the same across insurers. Premiums can differ substantially, and insurers may vary in discounts, pricing, and underwriting when you lack protected enrollment rights. Compare the same plan letter rather than comparing different benefits as though they were identical.
When can I enroll in Medigap without medical underwriting?
The federal Medigap Open Enrollment Period lasts six months and begins the first month you are both at least 65 and enrolled in Part B. During that period, you can buy a Medigap policy sold in your state even if you have health problems. Afterward, guaranteed-issue rights and state rules may provide other protections; otherwise, insurers generally may use medical underwriting.
Sources
- Medicare.gov — Compare Medigap Plan Benefits
- Medicare.gov — Get Medigap Costs
- Medicare.gov — Buying a Medigap Policy
- Medicare.gov — Compare Original Medicare & Medicare Advantage
- Medicare.gov — Learn How Medigap Works
- KFF — Medicare Advantage Enrollees Have Access to About Half of the Physicians Available to Traditional Medicare Beneficiaries
Disclaimer: This article is for general information only and is not financial advice. It does not take your personal circumstances into account, and past performance does not predict future results. Speak to a licensed financial professional before making money decisions.



