Although I was in the Air Force, when it comes to some jobs, all the services are all pretty much the same and require all the same qualifications and have the same duties - Especially in the Medical Field such as what you are talking about.
In the Military you have Clinical Social Workers - in which you would need to have at least a Masters Degree to qualify, a Bachelors in Social work will not qualify you for the military Clinical Social Worker program. The services also have Clinical Psychologists in which you would have to a Doctorate - either a PsyD or PhD.
Those were the Officer Programs - the doctors. Now you have the Technicians, the Enlisted folks that will be assisting the doctors.
Under the Enlisted Program for the Air Force it is called:
4C0X1 - MENTAL HEALTH SERVICE
Specialty Summary: Supports mental health services in psychiatry, psychology, social work, family advocacy, substance abuse prevention and rehabilitation, and mental health programs. Manages mental health service resources and activities. Assists mental health professional staff with developing and implementing treatment plans. Performs specified mental health treatment. Reports and documents patients care. (and a lot more).
Education. For entry into this specialty, completion of high school is mandatory. Completion of college courses in psychology, social or behavioral sciences such as psychology, counseling, substance abuse treatment, sociology, and marriage and family is desirable.
For entry, award, and retention of this AFSC, absence of any speech impediment, and ability to read aloud and speak distinctly.
For entry, award, and retention of these AFSCs, no record of emotional instability, personality disorder, or unresolved mental health problems.
This job requires a Sensitive Job Code(SJC) of "F."
See this web site for the complete details: (two pages)
http://usmilitary.about.com/od/airforceenlistedjobs/a/afjob4c0x1.htm