Black Book rankings are based on client experience scores obtained from the 360,000 crowdsourced ballots cast and available through mobile apps, web surveys, remote polling instruments, interview calls and on-site trade shows and user groups throughout the year. They represent the opinions of healthcare professionals and clinicians from more than 4,600 hospitals, 600 IDNs, 2,800 clinics, 23,000 physician practices, 250 health plans, and nearly 500,000 healthcare industry consumers, and account for 6,000 products and services from more than 1,700 vendors.
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