CSB Services - Engagement, Assessment & Referral

The goal of the engagement, assessment and referral service area is to help people get appropriate treatment that meets their needs, and triage people for safety. People may be referred to CSB services, if appropriate, or to community resources outside the CSB. [Not sure you need to call us? Take one of our quick, confidential online screenings.]

Engagement, Assessment and Referral services include:

  • CSB Entry & Referral Call Center (703-383-8500, TTY 711) – This is the starting point for accessing intellectual disability, mental health or substance abuse services through the CSB. Staff can take calls in English and Spanish and can access other languages when needed (learn more about the intake process for persons with developmental/intellectual disability). Women and girls who are pregnant and intravenous drug users have priority for substance use disorder services. [Learn more about eligibility for CSB services.] The Call Center is open from 9 a.m. to 5 p.m., Monday through Friday.
  • Walk-in and Engagement Services
    • Walk-in Services– Youth and adults can also come in person, without prior appointment, to be screened for services at CSB’s Entry & Referral Services, Merrifield Center, Monday through Friday, 9 a.m. to 5 p.m. Extended hours for youth evaluations are offered on Tuesdays until 7 p.m. [Learn what happens during an assessment.]
    • Engagement Center – Offering services to people who are reluctant to enter CSB services but could benefit from medication-assisted treatment (for substance use disorders) and time-limited supportive counseling.
  • Assessment Unit – Provides comprehensive screening, assessment, referral and stabilization services for adults who have or believe they may have an addiction to alcohol or drugs, serious mental illness or a co-occurring disorder. Individuals receiving assessments may be referred for further services within the CSB or receive a referral to a private provider.


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24-Hour CSB Emergency Services
Phone: 703-573-5679 | TTY: 711

CSB Entry & Referral
Phone: 703-383-8500 | TTY: 711
Contact the CSB by Email

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Tisha Deeghan, Executive Director

CSB Administrative Office
12011 Government Center Parkway, Suite 836, Fairfax, VA 22035-1100
Phone: 703-324-7000 | Fax: 703-653-6626 | TTY: 711

Contact Fairfax County: Phone, Email or Twitter | Main Address: 12000 Government Center Parkway, Fairfax, VA 22035
Technical Questions: Web Administrator

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