A health or residential care provider, health care service plan, insurer issuing disability insurance, self-insured employee benefit plan, or nonprofit hospital service plan may not:
(1) charge a person a different rate solely because the person has executed a declaration for mental health treatment;
(2) require a person to execute a declaration for mental health treatment before:
(A) admitting the person to a hospital, nursing home, or residential care home;
(B) insuring the person; or
(C) allowing the person to receive health or residential care;
(3) refuse health or residential care to a person solely because the person has executed a declaration for mental health treatment; or
(4) discharge the person solely because the person has or has not executed a declaration for mental health treatment.