Medicare 5-Star Plan Info

What is the Medicare plan rating used for?

The Centers for Medicare and Medicaid Services (CMS) created a star rating system to help Medicare-eligible individuals and caregivers quickly compare the performance and quality of Medicare Advantage plans and Part D prescription drug plans. This rating system helps Medicare shoppers and caregivers evaluate different plans – an important factor for someone enrolling for the first time or considering a change during the Medicare Annual Enrollment Period.

How are Medicare plans rated?

CMS rates Medicare Advantage and Part D plans annually, using a scale from one to five, with more stars equating to better performance and quality. A five-star rating is the highest a Medicare Advantage or Part D plan can receive, and half-ratings also exist (1.5, 2.5, 3.5, 4.5).

Here’s what the star ratings mean:

  • 5-star rating: excellent performance
  • 4-star rating: above-average performance
  • 3-star rating: average performance
  • 2-star rating: below-average performance
  • 1-star rating: poor performance

Star ratings are released by CMS around early October, just before the Medicare Annual Enrollment Period begins. CMS evaluates and scores three types of Medicare plans each year.

  1. Medicare Advantage plans with prescription drug coverage (MA-PD)
  2. Medicare Advantage plans without prescription drug coverage (MA only)
  3. Standalone Part D prescription drug plans (PDP)

Depending on the type of plan being evaluated, CMS uses anywhere from 12 to 38 quality and performance measures.

Why is the Medicare star rating important?

A Medicare plan’s star rating is important because it can help you when comparing different plans. You should not use a star rating as the only factor when making a final decision though. Some plans that have fewer than five stars may actually be a better fit for you. Use the Medicare star rating as just a single factor of evaluation. Your health, lifestyle, and financial needs should always be the final determining factors, and it’s important to read the details of each plan.

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What determines a Medicare Advantage or Part D plan’s star rating?

Below are some examples of quality and performance measures CMS may use to determine the star rating for a Medicare Advantage or Part D plan. You’ll notice some are more about the plan and plan provider, while others are specific to a health care service or item.

Quality and performance measures related to the plan or plan provider:

  • Customer service
  • Care coordination
  • Complaints about the plan
  • Getting needed care
  • Rating of health care quality
  • Members choosing to leave the plan
  • Getting appointments and care quickly

Quality and performance measures related to health services:

  • Breast cancer screening
  • Diabetes care
  • Rheumatoid arthritis management
  • Annual flu vaccine
  • Monitoring physical activity
  • Colorectal cancer screening
  • Getting needed prescription drugs
  • Medication adherence for cholesterol or diabetes medication

More information about the Medicare plan star ratings for 2023

Here are some statistics from CMS about the 2023 star ratings:

  • Approximately 51% of Medicare Advantage plans with included prescription drug coverage will have an overall rating of four stars or more
  • Approximately 72% of people currently enrolled in Medicare Advantage plans with included prescription drug coverage are enrolled in a plan that has at least a four-star rating
  • 57 Medicare Advantage plans with included prescription drug coverage received a 5 star rating for 2023.


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