If you live in Brentwood, Oakley, or Antioch, you know the drill. It’s 2026, and your mailbox is likely overflowing with "URGENT" postcards and glossy brochures featuring seniors hiking mountains and smiling at salads. Every single one of them claims to have the "best" plan. But when you’re sitting at your kitchen table trying to figure out the real difference between medicare vs medicare advantage, it can feel like you’re trying to read a menu in a language you don’t speak.

I’m Gemma, your local Brentwood insurance neighbor, and I’m here to cut through the noise. Think of me as your Medicare translator. Today, we’re breaking down the great debate for 2026 so you can stop stressing and get back to enjoying your Sunday morning at the Brentwood Farmers’ Market.

The "Old School" Choice: Original Medicare (Parts A & B)

Let’s start with the classic. Original Medicare is the federal program that’s been around since your parents were wondering if bell-bottoms were a good idea.

It consists of two main parts:

1. Part A (Hospital Insurance): Usually "free" if you’ve worked enough years. It covers stays in the hospital or skilled nursing facilities.
2. Part B (Medical Insurance): This is the one you pay a premium for. In 2026, the standard premium is sitting at $202.90 per month. It covers your doctor visits, outpatient care, and medical equipment.

The Pros of Original Medicare:
The biggest "win" here is freedom. You can go to almost any doctor or hospital in the entire United States, as long as they accept Medicare. If you’re a "snowbird" who spends half the year in Brentwood and the other half in Arizona, this flexibility is gold. You don’t need a referral to see a specialist, and you don’t have to worry about "in-network" vs. "out-of-network."

The Cons (The "Ouch" Factor):
Original Medicare is like a car with no roof, it’s great until it rains. There is no yearly limit on what you pay out-of-pocket. If you have a major health event, that 20% coinsurance you’re responsible for can add up to tens of thousands of dollars. Plus, it doesn’t cover prescriptions, dental, or vision. To fix this, most people in California add a Medicare Supplement (Medigap) plan and a Part D prescription plan, which means paying three separate premiums.

The "Modern Remix": Medicare Advantage (Part C)

Now, let’s talk about Medicare Advantage. This is where most of the "buzz" is happening in 2026. Think of Medicare Advantage as an "all-in-one" bundle. Private companies, the names you know like UnitedHealthcare (UHC), Humana, and Anthem, contract with the government to provide your Part A and Part B benefits.

In Brentwood, we are lucky to have a massive variety of these plans, including options from Humana, UnitedHealthcare (UHC), Anthem, SCAN, Imperial Health, Astiva, and Alignment Health.

The Pros of Medicare Advantage:
The headline here is often the $0 monthly premium. Yes, you still have to pay your Part B premium to the government, but many of these plans cost you $0 extra per month.

But it’s not just about the price tag. Medicare Advantage plans in 2026 are packed with "extras" that Original Medicare simply doesn’t touch:

• Dental, Vision, and Hearing: Finally, someone cares about your teeth and ears!
• Prescription Drugs: Most plans include Part D coverage right in the bundle.
• The Safety Net: Unlike Original Medicare, these plans have a Maximum Out-of-Pocket (MOOP) limit. For 2026, the highest this can be is $9,250, but many local plans in Contra Costa County set theirs much lower. Once you hit that limit, the plan pays 100% for the rest of the year.

The Trade-off (The "Network" Rule):
The catch? You generally have to use doctors and hospitals within the plan’s network. If your favorite doctor at John Muir or Sutter Health isn't in the network for a specific plan, you might be out of luck or end up paying way more. This is why it is crucial to check your providers before you sign on the dotted line.

What’s New for 2026? (The Big Changes)

If you haven't looked at your coverage in a year or two, pay attention! 2026 has brought some of the biggest shifts we’ve seen in a decade.

1. The $2,100 Part D Cap

This is a game-changer. For the first time ever, there is a hard cap on how much you will pay for your prescription drugs. In 2026, once you spend $2,100 out of your own pocket on covered meds, your plan picks up the rest of the tab for the year. No more "Donut Hole" nightmares!

2. Expanded Local Networks

Carriers like Anthem and Humana have been working hard to expand their presence right here in East County. Whether you prefer the clinics in downtown Brentwood or the larger facilities in Antioch, there are more choices than ever.

Medicare vs Medicare Advantage: The Comparison Table

Feature	Original Medicare	Medicare Advantage
Doctor Choice	Any doctor that takes Medicare (USA)	Network-based (Regional)
Monthly Premium	Part B Premium + Medigap + Part D	Part B Premium (Often $0 plan premium)
Out-of-Pocket Limit	None (Unlimited risk)	Yes (Financial protection)
Prescription Drugs	Need a separate Part D plan	Usually included
Referrals	Usually not required	Often required for specialists
Extra Perks	Not included	Dental, Vision, Gym, etc.

To dive deeper into how these parts work, check out our guide to the parts of Medicare.

Which One Should You Choose?

I wish I could tell you there is one "perfect" answer, but health insurance is as personal as your coffee order.

Choose Original Medicare + Medigap if:

• You travel frequently or live in two different states.
• You have a specific specialist you must see who doesn't join "networks."
• You prefer a higher monthly premium in exchange for almost zero "surprise" bills later.

Choose Medicare Advantage if:

• You want the lowest possible monthly cost ($0 premium plans are very popular here).
• You want your dental, vision, and prescriptions all handled under one "roof."
• You like the idea of having a maximum limit on your financial risk.

If you’re still feeling stuck, you aren't alone. In fact, we’ve put together a list of 5 questions people often get wrong about Medicare to help clear the air.

Why the "Brentwood Factor" Matters

You could call a 1-800 number and talk to someone in a cubicle 3,000 miles away. But they don't know that you probably shop at Safeway on Balfour or that your doctor’s office is right next to the high school.

Here’s the inside track for 2026, especially if you’re right here in Brentwood (and you bounce between nearby parts of the East Bay):

1. Contra Costa County (including Brentwood): If you’re looking at Medicare Advantage, Imperial Health Plan is the top choice we’re calling out locally for 2026.
2. Alameda County: If you’re over in Alameda, SCAN and Alignment Health are the standout stars for 2026.
3. UnitedHealthcare (UHC): It’s a huge national name, but it’s important to keep in mind UHC is leaning pricier this year, so we’ll compare it carefully against other strong local options like Humana and Anthem (plus SCAN, Imperial Health, Astiva, and Alignment Health) before you commit.

And when it comes to Medicare Supplements (Medigap), we keep it simple: a Plan G is a Plan G (same letter = same standardized coverage). So instead of overcomplicating it, we focus on finding you the best price from the companies we work with—because saving you money for identical benefits is a win!

Don't Navigate the 2026 Maze Alone

Choosing between medicare vs medicare advantage is a big decision, but it doesn't have to be a scary one. Whether you are turning 65 soon or you are looking to switch during the next enrollment period, I’m here to help you weigh the pros and cons.

My goal at Gemma Sambi Insurance Services is to make sure you feel confident in your coverage. We can sit down (or hop on a call), look at your specific doctors and medications, and find the plan that fits your life, not the other way around.

Got questions? Let’s chat!
📞 Phone: 415-370-8809
📧 Email: gemmasambiinc@gmail.com
🌐 Learn more: Contact an Agent

Remember, the best plan is the one that lets you sleep soundly at night, knowing you’re protected. Let's find yours today!

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Legal Disclaimer: We do not offer every plan available in your area. Currently, we represent 7 organizations which offer 42 products in your area. Please contact Medicare.gov, 1–800–MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options.