A provider whose employment or contractual relationship is terminated or is penalized for appealing a payer’s decision to deny payment for a service pursuant to the reasonable grievance or appeal procedure or protest a decision, policy, or practice that the health care practitioner, consistent with that degree of learning and skill ordinarily possessed by reputable health care practitioners. This section shall not be construed to prohibit a payer from making a determination not to pay for a particular medical treatment or service, or the services of a type of health care practitioner.