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Medicare 2026

Medicare structure choices for Rock Springs residents

In Rock Springs, one of the biggest Medicare decisions isn't which plan to pick — it's which structure to pick. Original Medicare paired with a Medigap policy works very differently from a Medicare Advantage plan, and understanding that difference up front can save you a lot of second-guessing later.

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Reading a guide at home in Rock Springs — illustrating this Medicare guide
Photo: Nathan Anderson Photo by Nathan Anderson on Unsplash

Key takeaways

  • Original Medicare + Medigap and Medicare Advantage are two different structures for getting your Medicare benefits, not two versions of the same thing.
  • Original Medicare lets you see any provider nationwide that accepts Medicare; most Medicare Advantage plans use networks tied to a service area.
  • Part D drug coverage has a $2,100 out-of-pocket cap and a $615 maximum deductible in 2026, moving to a $2,400 cap and a $700 maximum deductible in 2027, no matter which structure you choose.
  • The Annual Enrollment Period runs Oct. 15 – Dec. 7, and Medicare Advantage Open Enrollment runs Jan. 1 – March 31.

Both paths are legitimate. Both are offered under Medicare rules. But they're built on different chassis, and the one that fits you depends on how you like to get care, how you travel, and how much predictability you want in your bills.

The two structures, in plain terms

Original Medicare is the federal program itself — Part A (hospital) and Part B (doctor and outpatient). You can go to any doctor or hospital in the country that accepts Medicare. There's no network. But Original Medicare alone doesn't cap your out-of-pocket costs, and it doesn't include prescription drug coverage. That's why many people add two things: a Medigap (Medicare Supplement) policy to help pay the deductibles and coinsurance Original Medicare leaves behind, and a standalone Part D plan for drugs.

Medicare Advantage (Part C) is different. A private insurer, approved by Medicare, delivers your Part A and Part B benefits through their own plan, usually with a network of providers and often with Part D drug coverage rolled in. Advantage plans have a yearly cap on in-network medical out-of-pocket costs, which Original Medicare on its own does not.

So the core trade-off is: broad access with a supplement to smooth out costs, versus a bundled plan with a network and a built-in yearly cap.

How the money works

With Original Medicare + Medigap, you generally pay:

In return, most of your medical bills after those premiums are predictable, because the Medigap fills in a lot of Medicare's cost-sharing.

With Medicare Advantage, you still pay your Part B premium, plus whatever the plan charges. Instead of a supplement filling gaps, the plan itself sets copays and coinsurance for services as you use them, up to that yearly in-network maximum.

Neither structure is automatically cheaper. It depends on your health, your prescriptions, and how often you use care.

Drug coverage is the same promise, different package

No matter which structure you choose, Part D rules are set by Medicare. For 2026:

The difference is packaging. With Original Medicare, you buy a standalone Part D plan. With most Medicare Advantage plans, drug coverage is built in. The consumer protections are the same either way.

Provider access and travel

This is where the two structures feel most different day to day.

Original Medicare works anywhere in the U.S. where a provider accepts Medicare — which is most of them. If you split time between Rock Springs and somewhere else, or you travel often, that flexibility matters. Referrals generally aren't required.

Medicare Advantage plans typically use HMO or PPO networks tied to a service area. Care outside that network can cost more or, in some cases, not be covered except in emergencies. Some plans require referrals to see specialists. If you're considering Advantage, checking whether your doctors and preferred hospitals are in-network is step one.

What's available around Rock Springs

Rock Springs is in Sweetwater County, where Medicare Advantage and Part D plan availability is set at the county level by CMS. The number of plans and carriers offered here changes each year, so before enrolling for 2027 it's worth checking your plan's ANOC and looking up the Sweetwater County lineup on medicare.gov's Plan Finder rather than relying on what was available in 2026.

Star Ratings, which Medicare publishes each fall, can give you a sense of how plans have performed on quality and member experience. They're a reference point, not a recommendation.

A note on Medigap timing

One rule catches many people off guard: your best window to buy a Medigap policy is your six-month Medigap Open Enrollment Period, which starts the month you're 65 and enrolled in Part B. During that window, insurers can't turn you down or charge you more because of health conditions. After that window closes, in most states — Wyoming included — Medigap insurers can use medical underwriting, which can make switching from Advantage back to Original Medicare + Medigap harder later on. This is worth thinking about before you pick a lane.

Key dates to remember

By the numbers

Medicare Part B premium, 2006–2026

The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.

$0$50$100$150$200200820122016202020242026

Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.

By the numbers

How people get Medicare in Sweetwater County

12% are on Medicare Advantage
(MA penetration in Sweetwater County)
12%
88%
Medicare Advantage Medicare Supplement (Medigap) Original Medicare only
U.S. average

MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.

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Medicare Advantage companies in Sweetwater County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
Blue Cross Blue Shield of Michigan Mutual Ins CoRegional—Yes
UnitedHealthcareNational—Yes
Aetna (CVS Health)National—Yes
Fenyx Health Insurance CompanyRegional—Yes
Enrollment data: CMS Medicare Advantage enrollment by company (county level). Figures shown are illustrative sample data pending the current CMS file. Listed by enrollment size, largest first — this is not a ranking, recommendation, or endorsement of any company or plan.

Provided by licensed insurance partners; MyMedicarePlans.org may be compensated. Not a ranking or endorsement of any plan.

Explore

When can you enroll? An interactive year

JFMAMJJASOND
October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

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The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Good to know

Frequently asked questions

Can I have both a Medicare Advantage plan and a Medigap policy?
No. Medigap is designed to work only with Original Medicare. If you enroll in a Medicare Advantage plan, it's illegal for someone to sell you a Medigap policy, and an existing one won't pay toward your Advantage plan's cost-sharing.
If I start with Medicare Advantage, can I switch to Original Medicare + Medigap later?
You can switch back to Original Medicare during the Annual Enrollment Period or Medicare Advantage Open Enrollment. The catch is Medigap: outside your original six-month Medigap Open Enrollment window, insurers in most states can use medical underwriting, so acceptance and price aren't guaranteed. It's worth asking about your state's specific rules before you assume you can switch freely.
Do I need a separate Part D plan with Medicare Advantage?
Usually not — most Medicare Advantage plans include Part D drug coverage. If you pick an Advantage plan that includes drugs, you generally shouldn't also enroll in a standalone Part D plan, because doing so can cause you to be disenrolled from the Advantage plan.
Where can I get unbiased help comparing my options?
Start with medicare.gov, call 1-800-MEDICARE (24/7), or contact Wyoming's State Health Insurance Information Program (SHIIP), the local SHIP that offers free, one-on-one Medicare counseling. None of them sell plans. ## Bottom line The choice between Original Medicare + Medigap and Medicare Advantage isn't about which is "better" — it's about which structure fits your life. Compare how each handles provider access, monthly costs, out-of-pocket protection, and drug coverage before you enroll. For personalized help, use medicare.gov, call 1-800-MEDICARE, or reach out to Wyoming SHIIP for free counseling.
Sources & further reading
  • CMS — Medicare basics (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Also for Rock Springs

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This page was last updated: September 29, 2026.

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