Medicare Advantage

Why your county line shapes your Medicare menu

In Moses Lake, Medicare shoppers often ask a simple question: are the options here similar to what people find in nearby towns? The short answer is that plan availability is set county by county, so where you live — not just your ZIP code — shapes what shows up on your list. Moses Lake sits in Grant County, and that's the county that determines your Medicare Advantage and Part D choices.

Why the county line matters

Medicare Advantage and Part D plans are approved and priced by county. That means someone in Moses Lake may see a different lineup than a friend a couple of hours away in Wenatchee, Ellensburg, or the Tri-Cities. If you're comparing notes with family members in another town, expect the menus to differ — even when the same insurance company sells in both places.

For readers in Moses Lake, the county to look up on Medicare.gov is Grant County. That's the list that applies to you.

What Grant County looks like for 2026

Here's the area-level picture, using CMS Medicare Plan Finder data:

• 29 Medicare Advantage plans are offered in the county.
• 6 carriers offer Medicare Advantage plans with prescription drug coverage.
• The 65+ population in the county is about 14,822 residents.

Those numbers describe the size of the menu — not the quality of any one plan. A larger menu can mean more choice, but it can also mean more comparison work. A smaller menu isn't automatically worse; it can make decisions simpler.

How nearby areas can differ

Neighboring counties in central Washington can have their own carrier mixes and their own plan counts. Some rural counties have fewer Medicare Advantage options, and residents there often lean on Original Medicare paired with a Medigap policy and a stand-alone Part D drug plan. In Grant County, the CMS landscape file currently shows zero stand-alone Part D plans listed for the area's dataset, which is worth confirming on Medicare.gov before making a decision if you plan to stay with Original Medicare.

The takeaway: don't assume the plan a relative likes in another county is even sold in yours. Always check by ZIP code.

How to decide what fits

A few plain questions can narrow things down quickly:

1. Do you want to stay with Original Medicare, or try Medicare Advantage? Original Medicare works nationwide with any provider that accepts Medicare. Medicare Advantage plans use networks and usually bundle in drug coverage and extras. 2. What prescriptions do you take? Every drug plan has its own formulary. The same medication can be tiered differently from one plan to the next. 3. Which doctors and hospitals do you want to keep? If you have providers in Moses Lake, Spokane, or Seattle you visit regularly, check each plan's network before enrolling. 4. How do you feel about trade-offs? More extras often mean tighter networks. Broader access often means separate premiums for drug and supplemental coverage.

A few Part D rules worth knowing for 2026 and 2027

• The Part D out-of-pocket cap is $2,100 in 2026. Once you hit it, you pay $0 for covered drugs the rest of the year.
• The Part D deductible can be no higher than $615.
• The old "donut hole" coverage gap was eliminated in 2025. Part D now has three phases: deductible, initial coverage, and catastrophic.
• The Medicare Prescription Payment Plan lets you spread drug costs across the calendar year in monthly installments, at no extra charge.
• Higher-income enrollees pay IRMAA surcharges on Part B and Part D. For a single filer in 2026, IRMAA begins above $109,000 in income.

About Star Ratings

CMS publishes Star Ratings each fall to describe plan quality and customer experience. In the Grant County area dataset, no contracts are currently rated 4 stars or higher. Ratings are one input among many — not a substitute for checking whether your doctors, drugs, and pharmacies are covered.

Where to get personalized help

Because your prescriptions, providers, and budget are unique, the smartest move is to run your own comparison:

• Medicare.gov Plan Finder — enter your Moses Lake ZIP code and your drug list.
• 1-800-MEDICARE (1-800-633-4227) — available 24/7.
• Washington SHIBA (Statewide Health Insurance Benefits Advisors) — free, unbiased counseling from Washington's SHIP program. Call 1-800-562-6900.