NASHVILLE, Tenn.--(BUSINESS WIRE)--HealthStream (NASDAQ: HSTM), a leading provider of workforce, patient experience, and provider solutions for the healthcare industry, expanded its suite of CAHPS offerings by launching its Physician Quality Reporting System Consumer Assessment of Healthcare Providers and Systems (CAHPS for PQRS) Survey. This survey collects information about patients’ experiences of care within group practices. Participation for group practices of 100 or more eligible provider