Best Medicare Plans in Portland OR 2026: Advantage vs. Supplement Compared

By Rodney Cummings, RSSA® | Legacy Wealth Services | Happy Valley, OR

If you’re turning 65 in the Portland, Oregon area — or if you’re already on Medicare and wondering whether you have the right plan — you’re not alone. Every week I speak with families in Happy Valley, Clackamas, Lake Oswego, Gresham, Beaverton, and across the Portland metro who are confused by the same basic question:

Should I choose a Medicare Advantage plan or a Medicare Supplement (Medigap)?

The honest answer: it depends. But the factors that should drive your decision are specific and knowable — and this guide will walk you through all of them with an Oregon lens.

What Oregon Seniors Need to Know About Medicare First

Medicare has two main paths after your free Part A (hospital) and Part B (outpatient) coverage kicks in at 65:

Original Medicare + Medicare Supplement (Medigap) — You stay on traditional fee-for-service Medicare and buy a private Medigap policy to cover most of the gaps (deductibles, copays, 20% coinsurance).
Medicare Advantage (Part C) — A private plan from an insurer like Providence, Moda, Kaiser Permanente, or Regence that bundles your Part A, Part B, and usually Part D drug coverage into a single HMO or PPO.

Both are federally regulated. Both are widely available in the Portland metro. But they work very differently — and the wrong choice can cost you thousands of dollars and limit your access to the doctors and hospitals you trust.

Medicare Advantage Plans in Portland, Oregon (2026)

Portland seniors have strong Medicare Advantage options. Major carriers operating in Multnomah, Clackamas, and Washington counties include:

Kaiser Permanente Senior Advantage

Kaiser’s integrated model is well-known in Oregon. If you’re already a Kaiser member and happy with your care team, their Senior Advantage plans offer very low or $0 premiums and good prescription drug coverage. The trade-off: you must use Kaiser facilities exclusively.

Providence Medicare Advantage

Providence has deep roots in the Portland market with a broad network of hospitals and specialists. Their plans typically offer HMO and PPO options, dental/vision extras, and fitness benefits. Good fit for seniors who want Providence facilities specifically.

Moda Health Medicare Advantage

Moda is Oregon-based and has competitive plans in the metro area with solid network breadth. Their plans have historically offered strong star ratings and reasonable out-of-pocket maximums.

Regence BlueCross BlueShield of Oregon

Regence offers PPO-style Advantage plans that allow more flexibility in choosing providers. If you travel frequently or spend time in multiple Oregon counties or states, the broader PPO network is valuable.

AARP/UnitedHealthcare Medicare Advantage

UnitedHealthcare is the largest Medicare Advantage insurer nationally and has strong Oregon presence. AARP-branded plans include extras like gym memberships (Renew Active) and telehealth.

Key considerations for Advantage plans in Portland:

Most plans have $0 monthly premiums (you still pay Part B — $185/mo in 2026)
Out-of-pocket maximums in Oregon typically range from $3,000–$8,300/year
Network restrictions can limit specialist access and hospital choice
Prior authorization requirements vary significantly by plan
Drug formularies change annually — review every fall during Open Enrollment

Medicare Supplement (Medigap) Plans in Oregon (2026)

Medicare Supplements work differently. You keep Original Medicare, and the Medigap policy pays the bills Medicare doesn’t.

Plan G — The Most Popular Supplement in Oregon

Plan G is now the gold standard for new Medicare enrollees (Plan F is no longer available to those new to Medicare after January 1, 2020). It covers:

Part A deductible ($1,676 in 2026) ✓
Part B coinsurance (20% of all outpatient costs) ✓
Skilled nursing facility coinsurance ✓
Foreign travel emergency coverage ✓
Your only out-of-pocket is the Part B deductible ($257 in 2026)

Oregon Plan G premiums typically range from $115–$200/month depending on your age, gender, and tobacco use — and whether you buy from a mutual company vs. a stock company (premium increase patterns differ).

Plan N — Lower Premium, Small Copays

Plan N has lower premiums than G (typically $80–$140/month in Portland) but you pay small copays at the doctor’s office ($20) and ER ($50). No excess charges coverage. Good for healthy seniors who want predictability without the highest premium.

High-Deductible Plan G

Premiums can be as low as $40–$55/month. You pay the first $2,870 in costs (the 2026 deductible) before the supplement kicks in. Best for healthy people who want catastrophic protection only.

Medigap advantages for Portland seniors:

Use any doctor or hospital in the US that accepts Medicare — no network restrictions
No referrals needed for specialists
No prior authorization
Predictable costs year to year
Coverage travels with you — critical if you snowbird in Arizona, winter in Palm Springs, or visit grandchildren across the country

Advantage vs. Supplement: The Oregon Decision Framework

Here’s how I help Portland-area clients think through this choice:

Factor	Medicare Advantage	Medicare Supplement
Monthly premium	Usually $0–$50	$80–$200+
Total potential cost	Up to $8,300/year OOP max	Usually $1,000–$2,400/year (premiums + small gaps)
Doctor network	Restricted (HMO/PPO)	Any Medicare-accepting provider nationwide
Prescription drugs	Usually included	Need separate Part D plan
Extra benefits	Dental, vision, fitness, OTC	Generally none
Predictability	Variable (copays add up)	Very predictable
Best for	Healthy, budget-focused, local-only care	Complex health needs, travelers, specialists

The honest truth for Oregon seniors: If you’re healthy at 65 and plan to stay local, Advantage plans can save you money. But if you develop a serious condition — cancer, heart disease, joint replacements — the out-of-pocket costs and prior authorization requirements on Advantage plans can be significant.

Switching from Advantage back to a Supplement later isn’t always possible. You may be subject to medical underwriting, and with a new health condition, you might not qualify.

The Annual Enrollment Period: What Portland Seniors Must Know

Open Enrollment runs October 15 – December 7 each year. During this window, you can:

Switch from one Advantage plan to another
Switch from Advantage back to Original Medicare (and try to buy a Supplement)
Add, drop, or change a Part D drug plan

Initial Enrollment (your personal 7-month window around turning 65) is the most important period. During Initial Enrollment, you have guaranteed issue rights for any Medigap plan — meaning no health questions asked.

If you miss Initial Enrollment and wait, qualifying for a Supplement later may require underwriting. Don’t miss this window.

Local Resources for Portland Medicare Enrollees

Oregon Department of Human Services Senior Health Insurance Benefits Assistance (SHIBA) — Free, unbiased Medicare counseling. Call 1-800-722-4134.
Oregon Health Plan (OHP) — If you’re low-income and may qualify for dual eligibility (Medicare + Medicaid), contact OHP for help with premium subsidies and cost-sharing.
Area Agency on Aging, Multnomah County — Eldercare resources, benefits enrollment, and local senior programs.

Working With an Independent Medicare Advisor in Oregon

The difference between working with a captive agent (who sells only one company’s plans) and an independent advisor (who has contracts with dozens of carriers) is enormous.

I work with every major carrier in Oregon — Kaiser, Providence, Moda, Regence, Aetna, Cigna, Mutual of Omaha, Transamerica, and more. My job is to find what’s right for you, not to push a quota product.

More importantly, I do this as part of a complete retirement picture. Your Medicare decision doesn’t exist in isolation — it intersects with your Social Security claiming strategy, your income in retirement, your estate plan, and your long-term care needs. That integrated view is what distinguishes Legacy Wealth Services from a standalone Medicare broker.

Ready to Compare Your Options?

If you’re turning 65 in the Portland metro area — or if you want a second opinion on your current plan — I’d welcome the conversation. No cost, no pressure, no obligation.

Call or text: 503-832-8555
Schedule online: legacywealthservices.com/lp/medicare-review
Email: rod@legacywealthservices.com

We serve Happy Valley, Portland, Lake Oswego, Beaverton, Clackamas, Gresham, Oregon City, Tualatin, Wilsonville, and the entire Portland-metro area. Phone and video consultations available statewide.

Rodney Cummings is an RSSA® (Registered Social Security Analyst) and independent insurance professional licensed in Oregon and multiple states. He has guided 500+ clients through Medicare enrollment, Social Security planning, retirement income strategy, and more. Legacy Wealth Services is based in Happy Valley, OR.

Medicare plan availability and premiums vary by county and change annually. The information above reflects 2026 plan year data to the best of our knowledge. Always compare current plan details on Medicare.gov or with a licensed advisor before enrolling.