Substance Use Treatment in San Mateo, CA

Project Ninety Inc

What Does Project Ninety Inc Offer?

Project Ninety Inc is a substance use treatment facility at 416 2nd Avenue, San Mateo, California, offering intensive outpatient and outpatient treatment. It accepts Medicaid, Medicare, state-financed insurance and self-pay and offers a sliding fee scale.

Reviewed by Michael Rupe ·October 2, 2026

416 2nd Avenue
San Mateo, CA 94401

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 Project Ninety Inc

Outpatient
Intensive outpatient treatment
Regular outpatient treatment

Payment, Insurance and Help Paying

Federal, or any government funding for substance use treatment programs
Medicare
Medicaid
Cash or self-payment
State-financed health insurance plan other than Medicaid
Sliding fee scale (fee is based on income and other factors)

Medication Treatment

Accepts clients using MAT but prescribed elsewhere

Who the Program Serves

Adult women
Adult men
Ages: Young Adults
Ages: Adults
Ages: Seniors
Accepts: Female
Accepts: Male

Licensing and Accreditation

State substance use treatment agency
State department of health

Treatment Approaches

Anger management
Brief intervention
Cognitive behavioral therapy
Motivational interviewing
Matrix Model
Relapse prevention
Substance use disorder counseling
Telemedicine/telehealth therapy
Trauma-related counseling
12-step facilitation

Assessment, Recovery Support and Other Services

Comprehensive substance use assessment
Interim services for clients
Screening for tobacco use
Screening for substance use
Discharge Planning
Naloxone and overdose education
Outcome follow-up after discharge
Self-help groups
Housing services
Assistance with obtaining social services
Mentoring/peer support
Case management service
Social skills development
Breathalyzer or blood alcohol testing
Drug or alcohol urine screening

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.