Clinician(s) not showing as options in calendar

If you don't see a clinician in the calendar dropdown (like this one) Screen_Shot_2017-10-13_at_11.37.34_AM.png
 
it's probably because the skills of the patient and the service code being used don't match the skills of the clinician. For nursing, it is usually because the patient has a skill, such as "Trach" that the clinician you want to schedule doesn't have.