Substance Use Treatment in Fairfield, CA

MedMark Treatment Centers

What Does MedMark Treatment Centers Offer?

MedMark Treatment Centers is a substance use treatment facility at 1143 Missouri Street, Fairfield, California, offering outpatient treatment. It accepts Medicaid, Medicare, private insurance, TRICARE, state-financed insurance and self-pay. Medication treatment: methadone (certified opioid treatment program), buprenorphine and naltrexone.

Reviewed by Michael Rupe ·October 2, 2026

1143 Missouri Street
Fairfield, CA 94533

Listed in SAMHSA's FindTreatment.gov, checked October 2026. A listing is not an endorsement. Call to confirm services, openings and costs before you go.

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Treatment facility (SAMHSA listing)This facility

Types of Care at MedMark Treatment Centers

Outpatient
Outpatient methadone/buprenorphine or naltrexone treatment

Payment, Insurance and Help Paying

Federal, or any government funding for substance use treatment programs
Medicare
Medicaid
Federal military insurance (e.g., TRICARE)
Private health insurance
Cash or self-payment
State-financed health insurance plan other than Medicaid
SAMHSA funding/block grants

Medication Treatment

Buprenorphine maintenance
Federally-certified Opioid Treatment Program
Methadone maintenance
Prescribes buprenorphine
Prescribes naltrexone
Methadone
Buprenorphine with naloxone
Buprenorphine without naloxone
Naltrexone (oral)

Who the Program Serves

Pregnant/postpartum women
Clients who have experienced intimate partner violence, domestic violence
Ages: Children/Adolescents
Ages: Young Adults
Ages: Adults
Ages: Seniors
Accepts: Female
Accepts: Male
Opioid use disorder clients only

Language Services

Spanish
Sign language services for the deaf and hard of hearing

Licensing and Accreditation

State department of health
Commission on Accreditation of Rehabilitation Facilities (CARF)
SAMHSA certification for opioid treatment program (OTP)
Drug Enforcement Agency (DEA)

Treatment Approaches

Anger management
Brief intervention
Cognitive behavioral therapy
Contingency management/motivational incentives
Motivational interviewing
Relapse prevention
Substance use disorder counseling
Telemedicine/telehealth therapy

Assessment, Recovery Support and Other Services

Comprehensive substance use assessment
Outreach to persons in the community
Complete medical history/physical exam
Screening for tobacco use
Screening for substance use
Professional interventionist/educational consultant
Discharge Planning
Naloxone and overdose education
Outcome follow-up after discharge
Self-help groups
Housing services
Assistance with obtaining social services
Recovery coach
Mentoring/peer support
Employment counseling or training
Case management service
Domestic violence services, including family or partner
Social skills development
Breathalyzer or blood alcohol testing
Drug and alcohol oral fluid testing
Drug or alcohol urine screening
HIV testing
TB screening
Metabolic syndrome monitoring
Testing for Hepatitis C (HCV)

Before you commit, confirm openings, costs and the program's state license. How to choose a rehab you can trust lists the questions to ask when you call, and addiction treatment in California lists the state's treatment agency.