MA S906

Prohibits health insurance carriers from using individual provider prices or historic medical spending from specific network subsets when establishing alternative payment arrangements with healthcare providers

Permits carriers to consider patient population characteristics such as age, acuity, social determinants of health, and behavioral health needs when setting alternative payment arrangements

Requires total medical expense measures to include expenses from all providers in the carrier's network, applied uniformly by provider type

Mandates carriers file data on alternative payment arrangements with the Center for Health Information and Analysis for compliance verification

Classifies violations as Chapter 93A consumer protection violations, enabling enforcement through the state's unfair business practices law