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Alameda County Behavioral Health Services, Treatment and Support for the African American – Black Community


Dr. Karyn Tribble – Director of Alameda County Behavioral Health (ACBH)

Dr. Tribble has over 25 years of experience in the behavioral health field and is an experienced and dynamic administrator. She currently serves as the Alameda County Director of Behavioral Health Care Services and is the responsible for the oversight and provision of related services to the culturally, ethnically, and linguistically diverse residents of Alameda County.

Prior to her current position, Dr. Tribble served as the Chief Administrative Officer of Behavioral Health Services for Alameda Health System. She has held a number of other roles in the behavioral health field across the Bay Area and on the East Coast. Dr. Tribble has also held leadership roles in the San Francisco and East Bay Areas, including executive leadership in health care settings and local government, and in forensic, public health, and

Dr. Tribble holds a Bachelor’s of Science Degree in Psychology from Howard University in Washington D.C.; a Master’s degree in Social Services from Bryn Mawr College; and a Master’s degree and Doctor of Psychology degree in Clinical Psychology both from the Philadelphia College of Osteopathic Medicine. She is also a California Licensed Clinical Social Worker.

Mariana Dailey, MPH, MCHES, MHSA Planner

Mariana Dailey is a Public Health Practitioner with over 14 years of combined experience administering Maternal, Child & Adolescent Health (MCAH), criminal justice, and human service programs.

Mariana’s health service experience began with the Contra Costa Health Service Department, Public Health Division, piloting the implementation of the Teen Pregnancy Prevention Initiative in West and East Contra Costa County primary and secondary schools and managing the operations of multiple School-Based Clinics. She supported the 2014 expansion of the Health Care for the Homeless clinics as a member of the local CoC and lead evaluator for the community assessment process.

Mariana moved to perinatal programs in the MCAH Division as the
Principal Investigator of the Fetal, Infant Mortality Review Program (FIMR), Perinatal Bereavement Coordinator for the Sudden infant Death Syndrome Program, and co-manager of various perinatal equity taskforces.

Mariana came to Alameda County in 2017 as a Program Service Administrator with the Probation Department, managing the Re-Entry Hiring Initiative. She directed a BJA Second Chance Act Adult Reentry project; and administered direct service programs for the adult and transitional-aged youth populations in the areas of juvenile delinquency prevention, career technical education, and adult day reporting centers. Mariana is the Trauma Informed Care Coordinator for Alameda County Behavioral Health Care Services and Senior Planner for the Mental Health Services Act (MHSA) Division.

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