A.  Practitioners Authorized to Issue Prescriptions. A prescription for a controlled substance may be issued only by an individual practitioner who is:1.  authorized by law to prescribe controlled substances, and includes the following:a.  a physician;b.  a dentist;c.  a veterinarian;d.  a physician assistant;e.  an advanced practice registered nurse;f.  an optometrist; org.  a medical psychologist (but no narcotics); see full law