Medicare Advantage

Sierra Vista Medicare shoppers: what a plan's star rating is actually grading

SIERRA VISTA, Ariz. — Each October, just before Medicare's fall enrollment window opens, the federal government posts fresh Star Ratings for Medicare Advantage and Part D drug plans. For 2027, those scores go live on Medicare.gov ahead of the Oct. 15 Annual Enrollment Period — and if you live in Cochise County, they are one of the tools you can use to compare plans side by side. But the ratings are widely misread. They are not a ranking of "best to worst" plans, and they are not a promise of what your experience will be. Here is what the stars actually grade, and how to read them without making a costly mistake.

Medicare AdvantageSierra Vista, AZ

What the stars are actually measuring

CMS rates Medicare Advantage and Part D plans on a 1-to-5 scale, with 5 being the highest. The score is a weighted average of roughly 40 individual measures grouped into a few big buckets:

• Staying healthy — whether members get screenings, vaccines and routine checkups.
• Managing chronic conditions — how well the plan supports people with diabetes, heart disease and similar long-term needs.
• Member experience — survey answers from actual enrollees about their care and their plan.
• Member complaints and changes in plan performance — how often people complain, leave the plan, or have problems getting services.
• Customer service — call center performance, appeals handling, and how quickly the plan answers questions.

For plans that include Part D drug coverage, CMS also grades pharmacy customer service, drug pricing accuracy, medication safety, and how well the plan helps members take their prescriptions correctly.

What the stars are NOT measuring

This is where readers in Cochise County most often get tripped up. Star Ratings do not measure:

• Whether a plan's premium, deductible or copays are a good deal for you.
• Whether your doctor or preferred Sierra Vista pharmacy is in the network.
• Whether your specific medications are on the plan's formulary.
• Whether the plan covers the extras (dental, vision, hearing, transportation) that matter most to you.

A 4-star plan can be a poor fit if it doesn't include your cardiologist. A 3-star plan can be a good fit if it does. The star score is a quality signal, not a personalized recommendation.

How the ratings are published each fall

CMS releases the Star Ratings on Medicare.gov's Plan Finder in early- to mid-October, right before the Annual Enrollment Period opens on Oct. 15. When you use Plan Finder to compare plans available in Cochise County, each plan will display its overall star rating along with the underlying category scores.

Ratings can move up or down from year to year. A plan that earned 4 stars last fall might have 3.5 this fall, or vice versa. That's why it's worth checking the current rating each year during AEP — even if you plan to stay put.

Using the stars without letting them steer you wrong

A sensible way to work the ratings into your shopping in Sierra Vista:

1. Start with what you need — your doctors, your prescriptions, your budget, and whether you travel. 2. Use Plan Finder to see which plans available in Cochise County meet those needs. 3. Then look at the star ratings of the plans that already fit, as a tiebreaker on quality and service.

Doing it in that order keeps the stars in their proper role. Flipping it — picking the highest-star plan first and then hoping your doctor is in the network — is one of the most common mistakes people make during AEP.

A few program facts worth knowing for 2027

While you're comparing, keep these program-level numbers in mind. They apply across Medicare, not to any one plan:

• The Part D out-of-pocket cap is $2,100 in 2026.
• The Part D maximum deductible is $615.
• The old coverage gap ("donut hole") is gone as of 2025 — Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread drug costs over the year in monthly installments if that helps your cash flow.
• IRMAA surcharges on Part B and Part D begin above $109,000 in income for a single filer in 2026.
• Annual Enrollment Period: Oct. 15 – Dec. 7. Medicare Advantage Open Enrollment: Jan. 1 – March 31.