Medicare Advantage

Medicare plan counts in Plainfield and nearby counties

PLAINFIELD, Ind. — If you live in Plainfield and you're sorting through Medicare choices for 2027, it helps to know that your options are set by the county you live in, not the town. Plainfield is in Hendricks County, and the plan landscape here looks a lot like — but not exactly like — the counties next door.

Plainfield sits inside a wide Medicare map for 2027

That matters because when friends or family in Indianapolis, Avon, or Greenwood talk about their Medicare Advantage or Part D choices, they may be looking at a slightly different menu than you are. Here's how to think about the local picture without getting lost in the numbers.

Why availability is a county story, not a city story

Medicare Advantage and Part D plans are approved and sold by service area, and those service areas are drawn by county. So the plans available in Plainfield are the same plans available anywhere else in Hendricks County — from Brownsburg to Danville to Avon.

Cross the county line into Marion, Morgan, Boone, Hancock, or Putnam County, and the list of plans can shift. Some carriers sell in one county but not the next. A neighbor in a different ZIP code across the metro may genuinely have different choices, even if you both live 20 minutes from the same hospital.

For 2026, Hendricks County residents can choose among 75 Medicare Advantage plans, with 11 carriers offering Medicare Advantage prescription drug (MA-PD) plans in the area, according to CMS Medicare Advantage and Part D Landscape data. The 2027 lineup will appear in each plan's ANOC and on Medicare.gov's Plan Finder.

What "area counts" really tell you — and what they don't

A big plan count is not the same thing as a good fit. Two counties in the same metro can have similar-looking totals but very different networks, drug formularies, and extra benefits. The number of plans tells you how much shopping there is to do; it doesn't tell you which plan works for your doctors, your prescriptions, or your budget.

A few things worth knowing about the Hendricks County snapshot:

• 75 Medicare Advantage plans were offered in the county for 2026; the 2027 count will show on Plan Finder.
• 11 carriers offer MA-PD plans locally.
• Stand-alone Part D plans are counted separately by CMS and are available to anyone with Original Medicare across Indiana; your Plan Finder results will show the current lineup.
• About 27,586 residents age 65+ call Hendricks County home, which helps explain the strong carrier interest here.

Star Ratings are another piece of the picture. CMS rates Medicare Advantage and Part D contracts on a 1-to-5 scale for things like customer service and care quality. Ratings can change year to year, and they're one input among many — not a shortcut to picking a plan.

The program-level changes that apply everywhere

No matter which county in the Indianapolis metro you live in, some things about Medicare in 2026 are the same across the board:

• Part D out-of-pocket cap: $2,100. Once your out-of-pocket spending on covered drugs hits that amount, you pay $0 for covered prescriptions the rest of the year.
• Part D deductible maximum: $615. Plans can charge less, but not more.
• The coverage gap ("donut hole") is gone as of 2025. Part D now has three phases instead of four.
• Medicare Prescription Payment Plan. This optional program lets you spread your drug costs across the calendar year in monthly payments instead of paying big amounts at the pharmacy counter.
• IRMAA surcharges — higher Part B and Part D premiums for higher-income beneficiaries — start above $109,000 in income for a single filer in 2026.

Enrollment windows to circle on the calendar

• Annual Enrollment Period: October 15 – December 7, 2026. This is when most people compare and switch Medicare Advantage or Part D plans for 2027 coverage that starts January 1.
• Medicare Advantage Open Enrollment: January 1 – March 31. If you're already in a Medicare Advantage plan, you get one chance during this window to switch to another MA plan or return to Original Medicare (and add a Part D plan).

Special Enrollment Periods can also apply if you move, lose other coverage, or qualify for Extra Help.

How to compare Plainfield's options without guessing

The most reliable way to see what's actually available at your address is the official Plan Finder at Medicare.gov. Enter your ZIP code and your prescriptions, and the tool will pull the current list of plans for Hendricks County, along with estimated yearly costs based on your drugs and pharmacies.

If you'd rather talk to a person, two free options exist:

• 1-800-MEDICARE (1-800-633-4227), available 24/7.
• Indiana SHIP (State Health Insurance Assistance Program), which offers free, unbiased Medicare counseling. Trained local counselors can walk you through your options without trying to sell you anything.