Quick Answer: Medicare Supplement Plan G covers nearly all out-of-pocket costs left by Original Medicare – except the Part B deductible – and lets you see any Medicare-accepting provider nationwide with no referrals. It typically costs more per month than Medicare Advantage but offers more predictable, flexible coverage. The best fit depends on your budget, health needs, and how much flexibility you want.
Medicare Supplement Plan G has become one of the most popular Medigap options in California, especially since Plan F closed to newly eligible beneficiaries starting January 1, 2020. If you’re exploring your options for 2026, understanding what Plan G actually covers, where it falls short, and how it compares to other paths like Medicare Advantage can help you make a confident, well-informed decision.
What Is Medicare Supplement Plan G?
Plan G is a standardized Medigap policy designed to work alongside Original Medicare, covering most of the out-of-pocket costs that Medicare Parts A and B leave behind. Because Medigap plans are standardized, Plan G provides the same basic benefits no matter which insurance carrier you choose – though premiums can vary significantly between insurers.
Plan G covers:
- Part A coinsurance and hospital costs, including up to 365 extra days after Medicare benefits are used up
- Part A deductible
- Part A hospice care coinsurance or copayment
- Part B coinsurance or copayment
- Part B excess charges
- Skilled nursing facility care coinsurance
- Blood (first 3 pints)
- Foreign travel emergency coverage (up to plan limits)
The one major cost Plan G does not cover is the Medicare Part B deductible, which is why some people compare it closely to Medicare Supplement Plan F, the plan that does cover that deductible but is no longer available to those newly eligible for Medicare.
Plan G Pros
1. Broad Coverage With Predictable Costs: Because Plan G covers nearly all Medicare-approved costs after the Part B deductible, most people know almost exactly what they’ll pay out-of-pocket each year, aside from that one deductible and their monthly premium.
2. Nationwide Provider Access: Like other Medigap plans, Plan G lets you see any doctor or specialist who accepts Medicare, anywhere in the country, without needing referrals or staying within a network.
3. Guaranteed Renewable: As long as you pay your premiums, your Plan G policy cannot be canceled due to health changes, and your coverage stays consistent year after year.
4. Often More Affordable Than Plan F: Since Plan G doesn’t cover the Part B deductible, its premiums tend to run lower than Plan F, while still covering nearly everything else. For many people, the small deductible cost ends up being less than the premium savings.
Plan G Cons
1. Part B Deductible Isn’t Covered: You’ll need to pay the annual Part B deductible out-of-pocket before Plan G coverage kicks in for those services.
2. No Prescription Drug Coverage: Like all Medigap plans, Plan G does not include Part D prescription drug coverage. You’ll need a separate standalone Part D plan to cover medications.
3. Higher Premiums Than Medicare Advantage: Plan G premiums are generally higher than many Medicare Advantage monthly premiums, since you’re paying for broader flexibility and more predictable costs.
4. Underwriting Outside Your Enrollment Window: If you don’t enroll during your six-month Medigap Open Enrollment Period, applying for Plan G later may involve medical underwriting, which could affect your eligibility or premium based on your health history.
Plan G vs. Medicare Advantage: Which Should You Consider?
Plan G isn’t the only path worth considering. Medicare Advantage plans California residents can choose from often come with lower monthly premiums and added benefits like dental, vision, and hearing coverage bundled in. However, Advantage plans typically require staying within a provider network and may involve referrals for specialists, which is a very different experience than the flexibility Plan G offers.
The right choice comes down to your priorities. If predictable costs and nationwide provider access matter most, Plan G is often the stronger fit. If you’re comfortable with a network-based plan and want built-in extras at a lower monthly cost, Medicare Advantage may make more sense. It’s also worth understanding the Medicare Advantage plan enrollment period rules if you’re switching from Medigap to Advantage or vice versa, since the timing and rules differ from Medigap’s enrollment window.
Enrollment Timing Matters
You must be enrolled in Medicare Parts A and B before applying for Plan G. In California, your six-month Medigap Open Enrollment Period begins the month you turn 65 and enroll in Part B. Applying during this window guarantees you can’t be denied coverage or charged more due to pre-existing health conditions. Applying after this window closes may subject you to medical underwriting, which can affect your rate or eligibility.
Getting Help Comparing Plan G Rates
Premiums for Plan G and other Medigap plans vary by insurance carrier, even though the coverage itself is standardized. Rates can range widely depending on the company, so comparing quotes across multiple carriers is one of the best ways to make sure you’re not overpaying for the same coverage. Searching for a Medicare insurance agency near me can connect you with a licensed local advisor who can pull quotes from multiple carriers, explain how your health history affects pricing, and help you enroll with the company offering the best rate for your situation, often at no additional cost to you.
Conclusion
Plan G offers broad, predictable coverage and the freedom to see any Medicare-accepting provider nationwide, but it comes with a higher premium and doesn’t cover the Part B deductible or prescription drugs. Whether Plan G, another Medigap option, or Medicare Advantage is the right fit depends on your health needs, budget, and how much flexibility matters to you. If you’re comparing your options for 2026, the team at California Medicare Agency can help you review quotes across multiple carriers and find the coverage that truly fits your life, at no cost to you.
Top FAQs
1. What does Medicare Supplement Plan G not cover?
Plan G doesn’t cover the annual Part B deductible or prescription drugs, so you’ll need a separate Part D plan for medications.
2. Is Plan G cheaper than Plan F?
Usually, yes. Since Plan G doesn’t cover the Part B deductible, its premiums tend to run lower than Plan F, though Plan F is also no longer available to those newly eligible for Medicare.
3. Can I switch from Medicare Advantage to Plan G?
Yes, but you may face medical underwriting outside your initial enrollment window or a qualifying Special Enrollment Period.
4. How do I find a reliable Medicare insurance agency near me?
Look for a licensed, Medicare-focused advisor who compares quotes across multiple carriers rather than representing just one company.
5. Are Medicare Advantage plans in California cheaper than Plan G?
Often, yes, in terms of monthly premiums, but Advantage plans usually involve networks and referrals, while Plan G offers broader provider access.