Napa-Solano-Yolo-Marin County Public Health Laboratory

Notice: The laboratory will be closed on Monday, October 14 in observance of Columbus Day.

General Information
The Napa-Solano-Yolo-Marin County Public Health Laboratory exists as a regional laboratory to protect local communities against communicable diseases by providing diagnostic and reference laboratory services to healthcare professionals, clinics, hospitals, and law enforcement. Water testing and tick testing services are available to the public.

For information on testing services, click on the links below or on the left-hand panel.


Contact Information
Lab Director: Beatrix Kapusinszky, PhD, PHLD (ABB)
Assistant Lab Director: Glen Miller, PhD, M(ASCP)


Napa-Solano-Yolo-Marin County Public Health Laboratory
2201 Courage Drive, MS 9-200
Fairfield, CA 94533
Hours: M–F 8 am–12 pm & 1 pm–5 pm
Phone: (707) 784-4410
Fax: (707) 423-1979

Map showing Napa, Solano, Yolo, and Marin counties; also location of the laboratory