MA S830

Requires pharmacy benefit manager (PBM) contracts with pharmacies to include ingredient costs and dispensing fees equal to Massachusetts Medicaid Program rates, while prohibiting retroactive discount schemes like "Generic Effective Rate" or "Brand Effective Rate"

Mandates that maximum allowable cost (MAC) for non-affiliated pharmacies must be equal to or greater than MAC paid to pharmacies owned by or affiliated with the PBM

Requires PBMs to update maximum allowable cost lists at least every 3 business days and make them available to contracted pharmacies via secure web-based format

Establishes a 7-business-day appeal process for pharmacies to contest drug pricing, with PBMs required to respond within 7 business days and retroactively adjust reimbursements for valid appeals

Grants the Insurance Commissioner authority to audit PBM books and records for compliance, with audit information treated as confidential and exempt from public records requests