What Is Medicare Part C? How Medicare Advantage Works in Utah
Medicare Part C is Medicare Advantage: a Medicare-approved plan from a private company that covers your Part A and Part B services instead of Original Medicare. You still have Medicare and still pay your Part B premium. Plans must cover all the medically necessary services Original Medicare covers, most include drug coverage, and many use a network of doctors and hospitals. In Utah, the plans you can choose depend on your county.
Sources: Medicare.gov: Your health plan options · Medicare.gov: Compare Original Medicare & Medicare Advantage
Key takeaways
- Same thing, two names: Medicare Part C and Medicare Advantage mean the same coverage.
- How it works: a private plan approved by Medicare covers your Part A (hospital) and Part B (medical) care.
- You keep Medicare: you need Part A and Part B to join, and you keep paying your Part B premium.
- Five plan types: HMO, PPO, Private Fee-for-Service (PFFS), Special Needs Plans (SNPs) and Medical Savings Account (MSA) plans.
- Utah detail: plans are offered by county service area, so choices differ between Salt Lake County, St. George and rural counties.
- Medigap can't be used with a Medicare Advantage plan.
Want to talk through how Medicare Advantage works with your doctors and prescriptions? Book a phone or video call with our Utah team.
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Medicare's letters can be confusing, and "Part C" is a common question. This guide explains what Medicare Part C is, what it covers, the five plan types, who can join, and when. There's an interactive plan-type explainer partway down.
New to Medicare? Start with turning 65 in Utah and how to apply for Medicare in Utah, since you need Part A and Part B before you can join a Part C plan.
What is Medicare Part C?
Medicare has four parts. Part A is hospital insurance, Part B is medical insurance, Part D is drug coverage, and Part C is Medicare Advantage, another way to get your Part A and Part B coverage (Medicare.gov).
With Original Medicare, the federal government pays your claims, and you can see any doctor or hospital in the U.S. that takes Medicare. With Medicare Advantage, you join a plan offered by a Medicare-approved private company that must follow Medicare's rules. The plan covers your Part A and Part B services, usually through a network and service area.

Is Medicare Part C the same as Medicare Advantage?
Yes. "Medicare Part C," "Medicare Advantage" and "MA plan" all mean the same thing. You'll see both names on Medicare.gov and in plan materials.
What does Medicare Part C cover?
Every Medicare Advantage plan must cover all the medically necessary services that Original Medicare covers (Medicare.gov). Beyond that, plans differ:
- Drug coverage: most plans include Part D, so you don't join a separate drug plan.
- Extra benefits: some plans add benefits Original Medicare doesn't cover, like some vision, hearing and dental services.
- Rules for getting care: you may need to use the plan's network, get a referral to see a specialist, or get approval (prior authorization) before certain services.
- Travel: plans generally don't cover care outside the U.S., though some add emergency coverage when you travel abroad.
What does Medicare Part C cost?
We don't show prices here, because costs vary by plan and county. Here's how the costs are built:
- Part B premium: you keep paying it. The standard amount is $202.90 a month in 2026 (CMS).
- Plan premium: some plans charge their own premium, and some help pay part of your Part B premium.
- Copays, coinsurance and deductibles: these vary by plan and by service.
- Yearly out-of-pocket limit: every plan has a yearly limit on what you pay for covered Part A and Part B services, and some plans have separate in-network and out-of-network limits. Once you reach your plan's limit, you pay nothing more for covered Part A and Part B services for the rest of the calendar year. Plan premiums, Part D drug costs and care the plan doesn't cover don't count toward the limit.
Higher income? Your Part B and drug premiums may include IRMAA. See IRMAA brackets 2027.
Types of Medicare Advantage plans
Medicare.gov lists five types of Medicare Advantage plans. They differ mostly in how you use doctors and how drug coverage works (Medicare.gov).

- HMO (Health Maintenance Organization): you generally get care from the plan's network, except emergency care, out-of-area urgent care and temporary out-of-area dialysis. You usually choose a primary care doctor and need referrals. Some HMOs are Point-of-Service (HMO-POS) plans that allow some out-of-network care.
- PPO (Preferred Provider Organization): the plan has a network, and you can generally go out of network for covered services, usually at a higher cost share. No referrals needed.
- PFFS (Private Fee-for-Service): you can go to any Medicare-approved provider that accepts the plan's payment terms and agrees to treat you.
- SNP (Special Needs Plan): for people who qualify, such as people with both Medicare and Medicaid, certain chronic conditions, or who live in an institution. All SNPs include drug coverage.
- MSA (Medical Savings Account): a high-deductible plan paired with an account the plan deposits money into each year. It generally has no network and doesn't include drug coverage.
Medicare Advantage plan type explainer
Pick a plan type to see how it usually works, with a question to ask. Use "Compare all 5" to see them together.
Who can join a Medicare Part C plan?
To join a Medicare Advantage plan, you generally need to have Part A and Part B and live in the plan's service area (Medicare.gov). Special Needs Plans have extra rules about who qualifies.
Medicare Part C in Utah
About 55% of Utahns with Medicare were in Medicare Advantage or other health plans in June 2026, but the share varies widely by county: about 23% in Grand County, 18% in San Juan County and 39% in Emery County (CMS Medicare Monthly Enrollment). Plans are offered by service area, so always compare the plans offered in your county. Our guide to Medicare Part C plans in Utah covers the local details.
Medicare Part C vs Original Medicare
The big trade-off is how you use doctors and how costs work. Original Medicare works with any doctor or hospital in the U.S. that takes Medicare, usually without referrals, but it has no yearly out-of-pocket limit on its own. Medicare Advantage usually uses a network and may require referrals and prior approval, and it has the yearly limit described above. See both side by side in our Original Medicare vs. Medicare Advantage comparison tool.
People in Original Medicare can add a Medigap policy. Learn how that works in What is Medigap?, with a closer look at two letters in Plan G vs Plan N and Medicare Supplement Plan N. Remember that Medigap can't be used with a Medicare Advantage plan. We compare the two coverage styles in Medicare Advantage vs. Medicare Supplement.
Medicare Part C vs Part D
Part D is drug coverage only. You can get it as a stand-alone drug plan with Original Medicare, or built into most Medicare Advantage plans. If you're in an HMO or PPO that offers drug coverage, you get your drugs through that plan rather than a separate drug plan. Read about the Part D out-of-pocket cap.
When can you join a Medicare Advantage plan?
- When you're first eligible: during your 7-month Initial Enrollment Period around your 65th birthday. See Medicare enrollment dates.
- Every fall: during Medicare Open Enrollment, October 15 to December 7, you can join, switch or drop a Medicare Advantage plan. Changes start January 1.
- January to March: if you're already in a Medicare Advantage plan, the Medicare Advantage Open Enrollment Period (January 1 to March 31) lets you make one change. You can switch to a different Medicare Advantage plan, or drop your plan and go back to Original Medicare and join a separate Medicare drug plan. If you switch to Original Medicare, a Medigap company may ask health questions, charge more or turn you down outside your Medigap Open Enrollment Period, unless you have a guaranteed issue right, such as a trial right if you joined Medicare Advantage when you were first eligible at 65 and leave within the first year.
- After certain life events: moving or losing other coverage may give you a Special Enrollment Period.
How to join a Medicare Advantage plan

Confirm you have Part A and Part B
You sign up for both through Social Security (SSA). You keep paying your Part B premium after you join a plan.
Check your enrollment window
Join during your Initial Enrollment Period, during Open Enrollment from October 15 to December 7, or during a Special Enrollment Period if one applies.
List your doctors, prescriptions and pharmacy
Write down each doctor, each drug with its dose, and the pharmacy you use. These drive most of your comparison.
Compare the plans offered in your county
Use Medicare.gov's plan finder or a licensed agent to see plans in your service area, then check each plan's network, drug list and rules for referrals and prior approval.
Check how costs work
Look at the plan premium, copays, deductibles and the yearly out-of-pocket limit, in and out of network.
Enroll
You can join through Medicare.gov, by calling 1-800-MEDICARE, through the plan, or with a licensed agent.
How our team helps
We're Boo Insurance Services, a licensed independent Medicare agency in Draper, licensed since 2014. We've helped 1,000+ Utahns with Medicare and have 170+ 5-Star Google Reviews. We meet by phone or video anywhere in Utah, check your doctors and prescriptions, and explain how Medicare Advantage and Original Medicare work in plain language. You decide, with no obligation.
Bring your list of doctors and prescriptions, and we'll walk through how Medicare Part C works in your county.
Call 801-255-5341Book a phone or video callMon–Fri 9am–5pm MT · TTY 711
Frequently asked questions
What is Medicare Part C in simple terms?
Medicare Part C, also called Medicare Advantage, is a Medicare-approved plan from a private company that covers your Part A and Part B services instead of Original Medicare. Most plans also include drug coverage.
Is Medicare Part C the same as Medicare Advantage?
Yes. Medicare Part C and Medicare Advantage are two names for the same type of coverage.
Do I still pay the Part B premium with Medicare Part C?
Yes. You keep paying your Part B premium. Some plans also charge their own premium, and some help pay part of the Part B premium.
What's the difference between Medicare Part C and Part D?
Part C is Medicare Advantage, which covers your hospital and medical services and usually drugs too. Part D is drug coverage only, offered as a stand-alone drug plan or built into most Medicare Advantage plans.
Does Medicare Part C have an out-of-pocket limit?
Yes. Every plan has a yearly limit on what you pay for covered Part A and Part B services, and some plans have separate in-network and out-of-network limits. Once you reach it, you pay nothing more for covered Part A and Part B services for the rest of the calendar year. Premiums, Part D drug costs and non-covered care don't count toward it.
Can I use a Medigap policy with Medicare Part C?
No. Medigap can't be used with a Medicare Advantage plan. Medigap works only with Original Medicare.
Who can join a Medicare Part C plan?
Generally, anyone with Part A and Part B who lives in the plan's service area. Special Needs Plans have extra rules about who qualifies.
Are Medicare Part C plans the same everywhere in Utah?
No. Plans are offered by county service area, so the plans, networks and extra benefits can differ between counties. Original Medicare works the same in every Utah county.
Serving Utah residents. We do not offer every plan available in your area. Currently we represent 9 organizations which offer 58 products in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.
Related guides
- Medicare Advantage plans in Utah
- Original Medicare vs. Medicare Advantage comparison tool
- Medicare Advantage vs. Medicare Supplement
- What is Medigap?
- Medigap Plan G vs Plan N
- Medicare Supplement Plan N
- When is Medicare Open Enrollment?
- Medicare Advantage Open Enrollment Period in Utah
- Turning 65 in Utah
- Medicare enrollment dates in Utah
- Medicare Advantage HMO vs PPO
- Medicare Special Needs Plans
- Medicare Special Enrollment Period
Sources
- Medicare.gov, Your health plan options
- Medicare.gov, Compare types of Medicare Advantage Plans
- Medicare.gov, Compare Original Medicare & Medicare Advantage
- Medicare.gov, Joining a plan and Special Enrollment Periods
- CMS, 2026 Medicare Parts A & B Premiums and Deductibles
- CMS, Medicare Monthly Enrollment (Utah counties, June 2026)
- SSA, Sign up for Medicare
Not connected with or endorsed by the United States government or the federal Medicare program. Fores Boo, licensed independent Medicare agent, NPN 17255694, Boo Insurance Services, 61 W 13490 S Ste 201, Draper, UT 84020.
Last updated: October 21, 2026.