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Staff Biographies

Asher Delerme, M.S., LADC, CCS

Born and raised in “El Barrio” (East Harlem) of New York City, Asher Delerme is the executive director for the Chemical Abuse Services Agency, Inc., a multicultural behavioral health agency.  He has been a clinician, clinical supervisor, educator, and administrator for over twenty-eight years having worked with monolingual Spanish speaking patients, African-American therapeutic groups, Women’s programs and successful supportive housing programs for homeless individuals.  His counseling and teaching experiences range from mental health and substance abuse treatment to community based programs and higher education. Asher is a strong advocate for people experiencing behavioral health conditions and is an active board member of the Connecticut Community for Addiction Recovery (CCAR). In Addition, Mr. Delerme is an accomplished musician with skills in the ethnomusicology of African, Caribbean, and Jazz music genres.  His cumulative professional and multi-cultural experiences provide him with a unique training perspective in clinical, educational, and community development issues.

Dr. Raquel Lugo 


Kristin Bonilla, MS, LADC, AADC, CCS

Kristin Bonilla has worked in the behavioral health field since 1991. She is the Associate Director of CASA, Inc. and has been with CASA since 1992 in several capacities. She holds credentials from the Connecticut Certification Board and the International Certification &Reciprocity Consortium in Advanced Alcohol and Drug Counseling and Clinical Supervision. She is the Program Sponsor for CASA’s Opioid Treatment Program (MAAS) and has many years’ experience administering Medication Assisted Treatment programming. She is a past long term member of the DMHAS Multicultural Advisory Council. She is also a surveyor for the Commission on Accreditation for Rehabilitation Facilities. She has extensive experience working with individuals with substance abuse disorders. Her specialties include gender specific treatment and culturally relevant service provision.

Karen Perez


Luis DeJesus

Ibis Guerrero

Carlos Santana, MS

US Navy Veteran born in Mayaguez P.R. who has traveled around the world extensively both in the military and as a civilian. Carlos has a Master’s Degree in Psychology with an emphasis in addiction. He started with CASA as a Latino Outreach Coordinator and shortly afterwards became a counselor then moved to his current position, Assistant Program Director. Carlos is alumni for the first cohorts at University of New Haven on Transforming Youth Justice: A leadership Development Program. A program established to lead the way for juvenile justice reform through the engagement of policy makers, practitioners, service providers, students, communities, youth and their families. Carlos is also a published photographer in his spare time.


“I use psychology and photography in empowering those with low self-esteem by redirecting their mindset in believing in themselves, feeling comfortable and having an uplifting attitude towards life.”

-Carlos Santana

Robin Adefuin, LPC, LADC, MMFT

Robin Adefuin is the Program Director of Multicultural Ambulatory Addiction Services. She is a Licensed Professional Counselor, has her Masters in Marriage and Family Therapy, and is a Licensed Alcohol and Drug Counselor. She has worked in the behavioral health and substance abuse field for 18 years. She joined MAAS in 2010 after making the move from California. Within 3 years of working at MAAS, she was promoted to Program Director. She is focused on MAAS delivering services with a holistic approach and providing meaningful clinical oversight to her staff. 

Sharnelle Branyon, LADC, AADC, ICAADC

Sharnelle holds a Master’s degree in Psychology with a concentration in Addiction and is a Licensed Alcohol and Drug Counselor and Nationally and Internationally Certified Advanced Alcohol and Drug Counselor. She has 20 years of extensive experience in the addiction and mental health field working with adolescents, adults, medicated assisted treatment programs, hospital settings, and juvenile detention programs.  She is also on the state Board of Directors for the National Alliance on Mental Illness (NAMI CT) which provides support groups and training to help combat the stigma associated with mental health.

Yolanda Torrech-Vigo

Asher Delerme
Dr. Raquel Lugo
Kristin Bonilla
John Torres
Mayra Ossa
Ibis Guerrero
Carlos Santana
Robin Adefuin
Sharnelle Branyon
Yolanda Torrech-Vigo
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