Mich. Comp. Laws § 550.1401g

Sec. 401g. (1) A health care corporation certificate that requires a member to designate a participating primary care provider and provides for dependent care coverage shall permit a dependent minor member to select and access a pediatrician for general pediatric care services. (2) A health care corporation shall not require prior authorization or referral for access under subsection (1) to a pediatrician who participates with the health care corporation. A health care corporation may require prior authorization or referral for access to a nonparticipating pediatrician.