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Star Ratings for MA and Prescription Drug Plans - Chapter 13, 2018 UnitedHealthcare Administrative Guide

CMS Star Ratings provide external validation of our MA and Part D benefit plan performance and quality progress. Quality scores are provided on a one to five-star scale, with one star representing the lowest quality and five stars representing the highest quality. Star Ratings scores come from four sources:

  1. Consumer Assessment of Healthcare Providers and Systems (CAHPS®) or patient satisfaction data,
  2. HEDIS or medical record and claims data,
  3. Health Outcomes Survey (HOS) or patient health outcomes data, and
  4. CMS administrative data on benefit plan quality and member satisfaction.

To learn more about Star Ratings and view current Star Ratings for MA and Part D benefit plans, go to the CMS consumer website at