(a) The board or another state agency may not prohibit, interfere with, initiate a legal or administrative proceeding against, or impose a fine or penalty against:
(1) a physician solely because the physician provides direct primary care; or
(2) a person solely because the person pays a direct fee for direct primary care.
(b) A health insurer, health maintenance organization, or health care provider as that term is defined by § 105.001 may not prohibit, interfere with, or initiate a legal proceeding against:
(1) a physician solely because the physician provides direct primary care; or
(2) a person solely because the person pays a direct fee for direct primary care.