NCQA’s HPR overall rating is the weighted average of a plan's HEDIS, CAHPS and HOS (Medicare only) measure ratings, plus Accreditation bonus points (if the plan is Accredited by NCQA), rounded to the nearest half point displayed as Stars. Dozens of measures are calculated on a 0–5 scale in half-points (5 is highest) by comparing the plan submitted rate to The National All Lines of Business 10th, 33.33rd, 66.67th and 90th measure benchmarks.
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