Medicare 2026

Before you pick a Medicare path in Roseville: how Advantage and Medigap actually differ

When you first sign up for Medicare, you face a fork in the road. One path keeps you on Original Medicare and lets you add a Medigap policy (and usually a separate Part D drug plan). The other path moves your coverage into a Medicare Advantage plan run by a private insurer. Both are legal, both are common, and both are very different in how they work day to day. If you live in Roseville, which is in Placer County, you have access to plans on either path — but the choice is about structure, not just price.

Path one: Original Medicare plus Medigap

Original Medicare is the federal program itself — Part A (hospital) and Part B (doctor and outpatient). You can use any doctor or hospital in the country that accepts Medicare, and there is no network and no referral needed to see a specialist.

The trade-off is that Original Medicare does not cap your yearly out-of-pocket spending on its own. That is where Medigap (also called Medicare Supplement Insurance) comes in. A Medigap policy is sold by a private insurer and helps pay the deductibles, coinsurance and copays that Original Medicare leaves you owing. Medigap plans are standardized by letter (Plan G and Plan N are common examples), which means the benefits inside "Plan G" are the same from one company to the next — the price and customer service are what differ.

Medigap does not include drug coverage. If you take this path, you generally also sign up for a stand-alone Part D drug plan.

Path two: Medicare Advantage

Medicare Advantage (Part C) is an alternative way to get your Part A and Part B benefits. Instead of the federal program paying your doctors directly, you enroll in a plan from a private insurer that Medicare pays to cover you. You still have Medicare — the plan is simply how you use it.

Advantage plans usually work through a network (HMO or PPO), and many bundle in prescription drug coverage and extras Original Medicare does not offer. They also have a yearly out-of-pocket maximum for medical care, which Original Medicare alone does not. In exchange, you generally agree to use the plan's network of doctors and hospitals, follow its rules (like prior authorization for certain services), and stay in the plan's service area for regular care.

Where the paths really split

A few structural differences matter more than the fine print:

• Networks. Original Medicare + Medigap lets you see any Medicare-accepting provider anywhere in the U.S. Medicare Advantage ties you to a plan network, which is set at the county level. Roseville is in Placer County, so a plan's Roseville network is really the Placer County network the insurer has built.
• Referrals and prior authorization. Original Medicare rarely requires either. Many Advantage plans do.
• Predictability vs. bundling. Medigap gives you more predictable out-of-pocket costs but a higher monthly premium and a separate drug plan. Advantage often has a lower (sometimes no) plan premium but more variable costs when you use care, with medical and drug coverage bundled.
• Switching later. You can generally join or drop a Medicare Advantage plan during set enrollment windows. Moving from Advantage back to Original Medicare + Medigap later can be harder, because Medigap insurers in most states are allowed to use medical underwriting outside your initial Medigap open enrollment. Ask about your rights in California before you assume you can switch back easily.

The drug coverage piece

No matter which path you pick, the same Part D rules apply to everyone. In 2026, the maximum Part D deductible is $615 and there is a $2,100 cap on what you pay out of pocket for covered drugs in a calendar year; in 2027, the maximum deductible is $700 and the out-of-pocket cap is $2,400. The old coverage gap (the "donut hole") was eliminated in 2025, so Part D now has three phases instead of four. If your drug costs are uneven month to month, you can also ask about the Medicare Prescription Payment Plan, which spreads your out-of-pocket drug costs across the year in monthly bills.

Higher-income enrollees pay an IRMAA surcharge on top of Part B and Part D. In 2026, IRMAA starts above $109,000 in income for a single filer.

How to think through the decision

There is no single right answer, and the "better" path depends on your health, your doctors, your budget and how you like to handle paperwork. A few questions worth writing down before you compare anything:

• Do I want to keep specific doctors, and are they in a given plan's Placer County network?
• Do I travel or spend part of the year outside California?
• Would I rather pay more each month for fewer surprises, or less each month and handle costs as they come?
• What drugs do I take, and how are they covered under the plans I'm considering?

Once you know your answers, plan-finder tools and a licensed advisor or counselor can match those preferences to what is actually sold in your ZIP code. Two enrollment windows to keep on your calendar: the Annual Enrollment Period, Oct. 15 – Dec. 7, when anyone can change Advantage or Part D coverage; and Medicare Advantage Open Enrollment, Jan. 1 – March 31, when people already in an Advantage plan get one more chance to switch or return to Original Medicare.