No insurer may make, enforce or participate in any contract or other arrangement for exclusive services of a health care provider that prevents or materially inhibits any other insurer authorized to do business in this state from entering into a contract or other arrangement with any health care provider of services that the other insurer has contracted to supply or for which it has promised indemnity under its insurance contracts, unless:
(1) The health care provider is an individual who is an employee of the insurer;
(2) The health care provider is a corporation owned by the insurer;
(3) The health care provider uses the insurer’s name under a franchise arrangement; or (4) The case is within a class for which the commissioner by rule establishes an exception after a finding that the contract or other arrangement does not seriously impede the effective operation of a legitimate insurance business by other insurers.