PCC - Best in KLAS. Named Best in KLAS for the Ambulatory Specialty EMR segment in the 2021 Best in KLAS: Software and Services Report, our top-ranked EHR is the #1 choice for independent pediatricians nationwide. 94.0 2021 Best in KLAS Overall Score. 24 / 7 Complete IT support included anytime, day or night, 365 days a year..