Mass. Gen. Laws ch. 176O § 5D
For the purposes of this section, the term "base fee schedule" shall mean the minimum rates, typically set forth in fee schedules, paid by the carrier to an in-network health care provider who is not paid under an alternative payment arrangement for covered health care services; provided, however, that final rates may be subject to negotiations or adjustments that may result in payments to in-network providers that are different from the base fee schedule.
A carrier, directly or through any entity that manages or administers mental health or substance use disorder benefits for the carrier, shall establish a base fee schedule for evaluation and management services for behavioral health providers that is not less than the base fee schedule used for evaluation and management services for primary care providers of the same or similar licensure type and in the same geographic region; provided, however, that a carrier shall not lower its base fee schedule for primary care providers to comply with this section.
The division shall promulgate regulations to implement this section.
Mass. Gen. Laws ch. 176O, § 5D