Mobile Adolescent Services Team (MAST)
Alexis Wimer, LMFT, Program Director
Christine Phelps, ASW, Assistant Program Director
1260 Morena Blvd., Suite 200
San Diego, CA 92110
(619) 398-3261
(619) 275-2023
Mobile Adolescent Services Team (MAST)

Mobile Adolescent Services Team (MAST) is a community-based outpatient mental health program providing a full range of culturally and linguistically competent, strength-based, comprehensive integrated mental health services to children, youth and their families enrolled in the County Office of Education - Juvenile Court and Community Schools (JCCS) district and specified San Diego Unified School District (SDUSD) schools.    

 Program Description

MAST provides a full range of services including crisis intervention, individual, family, and group counseling, medication support, case management, rehabilitation and substance use/abuse treatment to children, adolescents and young adults (up to 21) with a Serious Emotional Disturbance (SED) and their families who are underserved, uninsured and /or full scope Medi-Cal.  Many of the students have been expelled from their home school districts, are on probation and/or homeless. Outpatient Counseling Services are provided at the JCCS class sites, SDUSD school sites, clients' homes and within the community. We welcome youth and families with co-occurring emotional/behavioral and substance use issues. MAST utilizes the team approach, following the Children's Mental Health Service System of Care Philosophy and Principles (CSOC) guidelines. We emphasize a strength-based collaboration between the child or adolescent, the family, education/school, primary care provider, other community providers, and the MAST team.


Services are provided by a team which includes: mental health counselors and clinicians, a substance abuse specialist, a parent support partner and a psychiatrist.

Treatment services include:

  • Individual, Family, and Group Counseling
  • School-Based Services
  • Home-Based Services
  • Medication Management Services
  • Crisis Intervention
  • Case Management Services
  • Integrated Mental Health and Substance Use Treatment
  • Psychiatric Services Including Evaluation
  • Parent Support Partner Services

Referral Process

Referrals may be initiated by the legal guardian (or community provider in conjunction with the legal guardian) by calling and/or faxing the program directly.


The program is certified as a Medi-Cal provider by the San Diego County Health and Human services Agency and the California Department of Mental Health.

Hours of Operation

Monday through Friday 8:00 AM to 5:00 PM  
Evenings by appointment only

Fees and Funding

MAST is funded through contracts with the San Diego County Health and Human Services Agency and is part of the San Diego System of Care.  The program accepts clients with Medi-Cal up to age 21.  We also take clients with no insurance with funding through the Mental Health Services Act. Uninsured clients pay a fee on a sliding scale based on the family monthly gross income. No one is denied services based on inability to pay.