Quick and accurate results for your health
When you have a health concern, detailed and reliable test results help you and your physician make the best possible treatment decisions. St. Helena Diagnostic Laboratory Services partners with your health care providers to give you the critical information you need.
Our lab is equipped with advanced instruments that enable rapid and accurate analysis of clinical and pathology tests. Fully accredited by The Joint Commission, our skilled team of medical technologists possesses the knowledge and experience to ensure the best test results every time.
Hours of operation:
Clear Lake Outpatient Lab: 7am-3pm Monday-Friday
Napa Valley Outpatient Lab: 7am-6pm everyday (365 day a year)
St. Helena Hospital - Napa Valley10 Woodland RoadSt. Helena , CA, 94574
St. Helena Hospital - Clearlake15630 18th Avenue P.O. Box 6710Clearlake, CA, 95422