Experts in STIs and HIV

Undiagnosed sexually transmitted infections (STIs) can lead to infertility, chronic pain, and other chronic diseases. Yet, there are limited health clinics available in the San Francisco Bay Area that offer accessible, discrete, and professional care services for sexual transmitted infections and diseases. The Stanford Positive Care and Sexual Health Clinic was created to address this need and provide adults living in the San Francisco Bay Area with access to anonymous STI testing, treatment, prevention, and education.


Positive Care Clinic
3351 El Camino Real
Atherton, CA 94027
Phone: 650-723-9001 Getting Here
Maps & Directions
3351 El Camino Real
Atherton, CA 94027
Phone: 650-723-9001 Getting Here

Our Doctors

Care and Treatment of STIs and HIV

Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

For Patients

Stanford Health Care (formerly Stanford Hospital & Clinics) is known worldwide for the advanced patient care provided by its doctors and staff.  We also provide a wide range of guest services and amenities to our patients and visitors. Learn more about preparing for a hospital stay, billing and financial services, and our other support programs in Patients & Visitors.  

The Positive Care & Sexual Health Clinic is conveniently located in a private and professional setting in Atherton, ensuring confidentiality for patients. 

International Patients
Phone: +1 650-723-8561

Call us to make an appointment


For Health Care Professionals


Phone: 1-866-742-4811
Fax: 650-320-9443
Monday – Friday, 8:30 a.m. – 5 p.m.

Stanford Health Care (formerly Stanford Hospital & Clinics) provides comprehensive services to refer and track patients, as well as provides the latest information and news for physicians and office staff. For help with all referral needs and questions visit Referring Physicians.


Fax a referral form with supporting documentation to 650-320-9443.

Track your patients' progress and communicate with Stanford providers securely online.

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