Health System Divisions

The Health System is the largest department in San Mateo County. There are eight divisions in the Health System, each with unique responsibilities, programs, and services. Below, you can learn about the Health System’s divisions, the San Mateo Medical Center and how to contact them.

Aging & Adult Services | Behavioral Health & Recovery Services | Correctional Health Services | Emergency Medical Services | Environmental Health | Family Health Services | Public Health, Policy and Planning | San Mateo Medical Center

photo of cute older adult woman in gardenAging and Adult Services

Aging and Adult Services (AAS) helps San Mateo County's older adults and people with disabilities live as safely and independently as possible. Services include centralized intake and referral, assessment and consultation, protective and supportive services, public guardian/conservatorship, and case management. The division serves as the Area Agency on Aging for planning, coordination, program funding, and advocacy for older adults and people with disabilities in the County. The division is advised by the Commission on Aging, the Commission on Disabilities, and the In-Home Supportive Services Advisory Committee.  AAS’ goal is to deliver compassionate and financially responsible services that meet high professional standards by providing protection, supportprevention and advocacy for older adults and people with disabilities.

Contact Information

  • For information about home and community-based services available in San Mateo County, see the Help at Home Directory page.
  • For information, advice and 24-hour emergency response: (800) 675-TIES (8437) or
    (650) 573-3900 (Local or From Outside CA) or 711 (California Relay Service)
  • Report suspected elder abuse: (800) 675-TIES (8437) or 711
    Fax: (650) 573-2310
    225 37th Avenue, San Mateo, CA 94403

photo of father and son in parkBehavioral Health and Recovery Services

Behavioral Health and Recovery Services assists children, youth, families, adults and older adults with the prevention, early intervention and treatment of complex mental illness and/or substance abuse conditions.

We are committed to support treatment of the whole person to achieve wellness and recovery, and to promote the health of individuals, families and communities we serve. Culturally competent services are provided by mental health clinicians, alcohol and drug counselors, peers, and others, through a network of County and private agency providers and partners throughout the community.

Contact Information
To access services for you or someone in your family who may be experiencing serious mental illness and/or substance use disorder, call the Behavioral Health and Recovery Services ACCESS Call Center for an assessment, information and/or referral based on your individual needs:

ACCESS Call Center:  Phone: (800) 686-0101, TDD: (800) 943-2833

Behavioral Health & Recovery Services Administrative Office
225 37th Avenue, San Mateo, CA  94403
Phone: (650) 573-2541
Fax: (650) 573-2841

Alcohol & Other Drug Services
Phone: (650) 802-6400
Location:  310 Harbor Boulevard, Building E, Belmont, CA  94002 (appointments, meetings)
Mailing Address: 400 Harbor Boulevard, Building E, Belmont, CA  94002

If You are in Crisis
Call 911 or go to Psychiatric Emergency at 222 39th Avenue, San Mateo 
(650) 573-2662

24-Hour Crisis Hotline
(650) 579-0350 or 1(800) 273-TALK (8255)

National Suicide Prevention Lifeline
1(800) SUICIDE - 1(800) 784-2433

24-Hour Parent Support Line
(650) 579-0358 or 1(888) 220-7575

24-Hour Youth Hotline
(650) 579-0353 or

photo of father and two kids in parkCorrectional Health Services

Correctional Health Services provides integrated medical, dental, mental health, and chemical dependency treatment to San Mateo County’s incarcerated adults and medical and dental care to the juvenile hall population. The Correctional Food Services program provides meals that are heart healthy and compliant with state guidelines to adults and juveniles while they are in custody.

Contact Information
300 Bradford Street, Redwood City, California 94063
Phone: (650) 363–7875
Fax: (650) 599–1082

photo of ambulance driving at nightEmergency Medical Services

Emergency Medical Services (EMS) partners with local organizations and emergency response agencies to ensure everyone involved in an emergency response is specially trained and properly equipped when disaster strikes in San Mateo County. EMS is the agency that regulates public and private emergency medical services and provides trainings and disaster planning as well as response services.

Contact Information
225 37th Avenue, San Mateo, CA 94403
(650) 573-2564


photo of ocean in Half Moon BayEnvironmental Health

Environmental Health provides services to ensure a safe and healthy environment in San Mateo County through education, monitoring, and enforcement of regulatory programs and services for the community.

Services include restaurant and housing inspection, household hazardous waste and medical waste disposal, water protection and water quality monitoring, pollution prevention, and other regulatory activities and services.

Contact Information
2000 Alameda de las Pulgas, Suite 100, San Mateo, CA 94403
Phone: (650) 372-6200
Fax: (650) 627-8244
Office Hours: 8 a.m. to 5 p.m. Mon-Fri. 

photo of mother and baby rubbing nosesFamily Health Services

Family Health Services focus on the health and well-being of infants, children, teens, young adults and parents. Services include well-child check-ups, developmental screenings, support for children with special health needs, parenting classes, home visits, vaccine clinics, lead/asthma assessments, health education, tobaco cessation and prevention. We work in concert with our community and County partners to support and promote healthy lifestyles to prevent health problems before they occur.

Contact Information
2000 Alameda de las Pulgas, Suite 200, San Mateo, CA 94403
Resource Hotline: (888) 840-0889


kids riding bikes

Public Health, Policy and Planning

Public Health, Policy and Planning protects the health of everyone who lives, works, learns and plays in San Mateo County by preventing the spread of communicable diseases, delivering targeted health care services, providing public health laboratory testing and building communities that make it easy to stay healthy.   

Contact Information

​Director of Public Health, Policy and Planning
225 37th Avenue, San Mateo, CA 94403
Phone: (650) 573-2263

Animal Control & Licensing
225 37th Avenue, Room 21  San Mateo, CA  94403
Phone:  (650) 573-3726 
Fax: (650) 573-2919

Bioterrorism & Emergency Preparedness
225 37th Avenue, Room 106, San Mateo, CA  94403
Phone:  (650) 573-3798
Fax:  (650) 358-9346 

HIV Clinic: (650) 573-2385
STD Clinic: (650) 573-2999
Mobile Clinic: (650) 573-2786

Communicable Disease Control
225 37th Avenue, San Mateo, CA 94403
Phone: (650) 573-2346
Fax: (650) 573-2919

Health Policy and Planning
225 37th Avenue, San Mateo, CA 94403
(650) 573-2398

Public Health Laboratory Services
225 37th Avenue, Room 113, San Mateo, CA 94403
Phone:  (650) 573-2500
Fax: (650) 573-2147

Medical Marijuana ID Card Program (MMIC)
225 37th Avenue, Room 11  San Mateo, CA  94403
Phone:  (650) 573-2395
Fax:  (650) 573-2576

STD/HIV Program
225 37th Avenue, San Mateo, CA 94403
Phone:  (650) 573-2346
Fax: (650) 573-2919

Tuberculosis (TB) Control – to report a confirmed or suspected case of TB
225 37th Avenue, San Mateo, CA  94403
Phone:  (650) 573-2346
Fax: (650) 573-2919

Vital Statistics Program For birth & death registration
225 37th Avenue, Room 11  San Mateo, CA  94403 
Phone:  (650) 573-2395 
Fax:  (650) 573-2576


photo of happy familySan Mateo Medical Center

San Mateo Medical Center is a public hospital and clinic system fully accredited by The Joint Commission. The Medical Center operates outpatient clinics throughout San Mateo County and an acute-care hospital. We serve the healthcare needs of County residents, serving as the healthcare home for underserved and underinsured residents, with an emphasis on education and prevention.

Contact Information
222 W. 39th Avenue, San Mateo, CA 94403
Phone: (650) 573-2222
Fax: (650) 573-2950