Oregon Medicare Supplemental Plans Guide 2026
What Are Medigap Plans?
Medigap plans, officially called Medicare Supplement Insurance, are policies sold by private companies to help pay health care costs that Original Medicare (Parts A and B) doesn’t cover. These out-of-pocket expenses may include deductibles, copayments, and coinsurance, making Medigap a preferred solution for those seeking predictable medical costs and fewer coverage surprises. Medigap policies do not include prescription drug coverage-so beneficiaries need to enroll in a separate Medicare Part D plan for drugs. Additionally, Medigap cannot be used in conjunction with a Medicare Advantage (Part C) plan.
Every Medigap plan must follow federal and Oregon state laws designed to protect consumers, and plans are standardized (A-N), so the benefits of each plan type are the same regardless of insurer. The primary benefit is peace of mind: Medigap policyholders can see any doctor nationwide that accepts Medicare and are not restricted to specific networks. For travel or snowbird retirees, this nationwide access is a significant advantage. For those concerned with the details of what Parts A and B cover, read more in our Medicare Part A overview.
Medigap Plan Options Available in Oregon
In Oregon, 10 standardized Medigap plans (A-N) are offered in 2026, although not all insurers carry every plan. What makes Oregon Medigap plans unique is that all insurers must provide the same core benefits for a given plan letter, yet pricing and extra options may differ.
- Plan G: The most popular among Oregon residents, Plan G covers all Medicare-approved costs except the Part B deductible. It includes coverage for Part A deductible, coinsurance, and excess charges. The 2026 annual cost typically ranges from $1,897 to $3,237, though Humana offers rates as much as 21% below the state average.
- Plan N: Similar to Plan G but requires copays ($20 for office visits, $50 for ER), and does not cover Part B excess charges. Lower premiums than G make it appealing to healthy enrollees.
- Plan F: The most comprehensive (covers the Part B deductible), but closed to new applicants who became Medicare-eligible after January 1, 2020. Existing enrollees can keep it, but premiums are generally higher.
| Plan | Key Coverages | Notes for Oregon |
|---|---|---|
| G | Part A deductible, coinsurance; most Part B costs | Most popular; Humana offers ~21% below state average |
| N | Similar to G but with nominal copays, no excess charges | Lower premiums; ideal for healthy enrollees |
| F | Full coverage including Part B deductible | Pre-2020 eligibles only |
Other insurers serving Oregon, such as UnitedHealthcare and Regence, frequently compete on rates, discounts, and value-added benefits. The SHIBA Guide is updated annually to reflect the most accurate provider offerings and competitive rates. Oregon also holds an annual “birthday rule” (detailed below) to allow plan changes without medical underwriting.
2026 Oregon Medigap Pricing Breakdown
Medigap rates by age and geography in Oregon are determined by several factors. Unlike Medicare Advantage plans, which can see broad variability in benefit and provider networks, Medigap plans in Oregon offer stable benefits but variable premium costs.
- Insurer: Each insurer sets its rates, offering incentives and discounts (for example, Humana’s Plan G can be ~21% below the state median).
- Age: Many Oregon insurers use attained-age pricing, so your rate may go up as you age. There is also issue-age pricing, where premiums are based on your age at plan purchase.
- Gender: Women sometimes pay less than men, but this varies by insurer.
- Location: Premiums differ across Oregon’s rating areas, reflecting local health costs.
- Tobacco use: Tobacco users may see higher premiums.
For 2026, Plan G pricing is projected between $1,897 and $3,237 per year ($158-$270 monthly). Monthly prices have remained steady recently, reflecting a competitive Oregon market and relatively stable claims. Humana and UnitedHealthcare remain the largest Medigap providers in the state, with Humana generally undercutting state averages for Plan G by as much as 21%. For seniors considering how their Modified Adjusted Gross Income affects premiums, this is a key consideration for budgeting.
Oregon SHIBA (Senior Health Insurance Benefits Assistance) offers annual guides for residents to compare real-time rates. Request personalized quotes, and consider the implications if you enroll outside your open enrollment window, as you could face higher costs or medical underwriting.
Enrollment Periods and Eligibility Requirements
Eligibility for Oregon Medigap plans rests on enrollment in Medicare Parts A and B. Key timelines include:
- Medigap Open Enrollment: Lasts six months starting the first month you’re 65+ and have Part B. During this window, you have guaranteed issue rights regardless of pre-existing conditions. Applying during open enrollment ensures you avoid medical underwriting and higher premiums.
- Initial Enrollment Period (IEP): This is the seven months surrounding your 65th birthday when you can sign up for Medicare and select a Medigap plan. This period aligns with your optimal opportunity for low premiums and few restrictions.
- Annual Enrollment Period (AEP): Runs from October 15 to December 7. While this is primarily for Medicare Advantage or Part D changes, Oregon’s unique “birthday rule” allows plan changes during the 30 days surrounding your birthday without medical underwriting, provided you move to a plan with equal or lesser benefits.
Outside of these windows, switching or enrolling in Medigap may subject you to health questions and eligibility restrictions, potentially leading to higher quotes or even denials. For those under 65-generally those qualifying due to disability-options are limited; Oregon does require some insurers to offer at least one plan, but prices are often higher. Check the Oregon Division of Financial Regulation or contact SHIBA for updates on Medigap eligibility in Oregon for those under 65.
Special guaranteed issue periods exist if you lose employer or union coverage or if your Medicare Advantage plan changes or ends. These offer a 63-day window to purchase select Medigap policies without medical underwriting.
For help with complex enrollments or comparing Medacap coverage in Oregon, turn to CMS Medicare Contact Information or local resources.
How Medigap Supplements Original Medicare
Medigap is designed specifically to fill the holes in Original Medicare coverage. Original Medicare comes in two parts:
- Part A (Hospital Insurance): Covers hospital stays, skilled nursing facility care, hospice, and some home health. But you still have deductibles and coinsurance. Part A’s deductible will reach $1,632 in 2025, likely increasing in 2026.
- Part B (Medical Insurance): Covers outpatient care like doctor visits, outpatient procedures, lab work, and preventive services, but you are usually responsible for 20% coinsurance after meeting your annual deductible.
Medigap pays for these out-of-pocket expenses-for example, the Part A hospital deductible, Part A and B coinsurance, excess charges if your doctor bills more than Medicare’s approved rate, and emergency foreign travel coverage. Many Oregonians prefer Medigap for its budget predictability and the freedom to see any Medicare provider nationwide without network restrictions, unlike many Medicare Advantage plans. For coverage of items like vaccines, remember that Medigap does not cover prescription drugs; you will need to add a Part D plan (see our article on Medicare Part D Vaccine Coverage).
Over 900,000 Oregonians are enrolled in Medicare, with a strong preference for Medigap coverage in areas where Medicare Advantage choices are slim, as in Central Oregon.
Frequently Asked Questions About Medigap in Oregon
Can I enroll in a Medigap plan at any time?
Yes, but the absolute best time to enroll is during your Medigap Open Enrollment window (the initial 6 months after you enroll in Part B and turn 65). During this period, you have guaranteed access to any Medigap plan sold in Oregon without underwriting or higher rates due to health conditions. After this window, applications may be reviewed and possibly declined or rated higher based on medical history.
What happens if I’m under age 65?
Medicare eligibility under 65, such as through disability, is handled differently. Federal law does not require insurers to offer Medigap to those under 65, but Oregon directs some insurers to provide at least one plan. However, premiums are typically higher, and options more limited. Contact SHIBA or the Oregon Division of Financial Regulation for current Medigap eligibility in Oregon if you are under 65.
Does Medigap cover prescription drugs?
No, Medigap plans do not cover prescription medication. You must purchase a separate Part D prescription drug plan. Many Oregonians combine Medigap with Part D for comprehensive coverage.
Where do I find enrollment help or more information?
Free, unbiased counseling is available through the state’s SHIBA program, the annually-updated Oregon Guide to Medicare Plans, or direct federal support-learn more at our page for CMS Medicare Contact Information or by calling 1-800-MEDICARE.
What is the Oregon “Birthday Rule”?
Oregon law allows an annual 30-day “birthday rule” window, during which you can switch Medigap plans with equal or lesser benefits without medical underwriting, regardless of health changes. This is unique among states and helps Oregonians ensure they have the best fit as their needs evolve.
Do I need Part B to enroll in Medigap?
Yes, you must be enrolled in both Medicare Part A and B. For information on how to get Medicare Part B free or at low cost, visit our detailed guide.
How does my income affect Medigap or Medicare costs?
While Medigap premiums are set by insurers, your Modified Adjusted Gross Income for Medicare can affect your Part B or D premiums. Always review the latest Oregon-specific SHIBA guides or contact Medicare for help.
