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February 2022

Understanding the importance of Medicare Star Ratings

What are Star Ratings?

The Centers for Medicare & Medicaid Services developed the Medicare Star Ratings program to help consumers compare Medicare Advantage health plans based on quality and performance. The program includes a set of quality performance ratings developed by the National Committee for Quality Assurance and CMS for all Medicare Advantage health plans.

CMS rates the relative quality of service delivered by health plans and care delivered by health care providers based on a five-star rating scale, where five stars indicate the highest score.

How are CMS star ratings determined?

The ratings include specific clinical, member perception and operational measures. There are approximately 40 measures in the Star Rating framework.

To best capture a range of quality metrics, Star Ratings are determined using different data sets including, but not limited to, the following:

  • Health Effectiveness Data and Information Set, or HEDIS®, primarily collects clinical outcomes and data. This data reflects the care delivered by the provider and staff.
  • Prescription Drug Event data is collected by health plans to provide insight for prescription drug-related measures.
  • The Consumer Assessment of Healthcare Providers and Systems, or CAHPS®, is an annual survey sent to a random sample of members every spring to measure their experience with care delivered and the health plan. This data focuses on the member’s accessibility to quality care.
  • The Health Outcomes Survey, or HOS, is sent every summer to a random sample of members to measure self-reported health status and the quality of their health care. A follow-up survey is sent to these same members two years later to measure any changes in health perception.
  • Operations data from health plans is used to assess the quality of customer service and other services health plans are providing to their members.

What’s your role as a health care provider?

By providing high-quality care to patients in a timely manner, providers play a crucial role in the Star Ratings program. There are various opportunities for providers to engage with patients to help ensure high-quality and timely care while helping patients manage their health.

Areas of opportunity to align provider practices with the CMS Star Ratings program:

  • Promote timely and appropriate screenings, tests and treatment.
  • Provide education to staff members for proper documentation of care delivered.
  • Strengthen patient and provider relationships through open communication regarding health care needs and quality of care.
  • Work with patients on the collaborative development of chronic condition care plans.
  • Follow up with patients about medications.
  • Assess timeliness of care and work with office staff to optimize scheduling.
  • Refer to the Star and HEDIS tip sheets on web-DENIS for more details.

These practices promote patient safety, preventive medicine, early disease detection and chronic disease management, which is especially beneficial for this population.

Star Ratings help members enhance relationships with providers and health plans by ensuring accessibility to care, enhanced quality of care and optimal customer service.

Note: Our Star and HEDIS tip sheets are in the process of being updated for 2022. Once they’ve been updated and posted on web-DENIS, we’ll publish a Record article to let you know.

HEDIS® is a registered trademark of the National Committee for Quality Assurance.

CAHPS® is a registered trademark of the Agency for Healthcare Quality and Research, or AHQR.

No portion of this publication may be copied without the express written permission of Blue Cross Blue Shield of Michigan, except that BCBSM participating health care providers may make copies for their personal use. In no event may any portion of this publication be copied or reprinted and used for commercial purposes by any party other than BCBSM.

*CPT codes, descriptions and two-digit numeric modifiers only are copyright 2021 American Medical Association. All rights reserved.