Texas Insurance Code - INS § 843.363. Protected Physician or Provider Communications with Patients

(a) A health maintenance organization may not, as a condition of a contract with a physician, dentist, or provider, or in any other manner, prohibit, attempt to prohibit, or discourage a physician, dentist, or provider from discussing with or communicating in good faith with a current, prospective, or former patient, or a person designated by a patient, with respect to:

(a-1) A health maintenance organization may not, as a condition of payment with a physician, dentist, or provider, or in any other manner, require a physician, dentist, or provider to provide a notification form stating that the physician, dentist, or provider is an out-of-network provider to a current, prospective, or former patient, or a person designated by the patient, if the form contains additional information that is intended, or is otherwise required to be presented in a manner that is intended, to intimidate the patient.

(b) A health maintenance organization may not in any manner penalize, terminate, or refuse to compensate for covered services a physician, dentist, or provider for communicating in a manner protected by this section with a current, prospective, or former patient, or a person designated by a patient.

(c) A contract provision that violates this section is void.