(a) General rule.--It shall be unlawful for any person, other than a professional health service corporation holding a certificate of authority under this chapter relating to the plan being maintained or operated by such corporation, to establish, maintain or operate in this Commonwealth a nonprofit dental service plan, a nonprofit optometric service plan, or a nonprofit professional health service plan.
(b) Exemptions.--Nothing in subsection (a) of this section shall be construed as preventing any person from furnishing professional health services for the prevention of disease among his employees or from furnishing any of such services as required under The Pennsylvania Workmen's Compensation Act and related statutes, when the employee is not charged for such service.