Arbor Free Clinic is a volunteer-operated clinic that is dedicated to serving adult patients who do not have insurance in our local communities in San Mateo County. Our mission is to provide transitional care to those who are uninsured and have limited access to healthcare. Under this model, we aim to provide referrals and connections to resources that can better serve patients’ long-term needs.
Please note:
- We are only open on Sundays and do not serve as a long-term primary care provider.
- This is a walk-in clinic and patients are seen on a first-come, first-served basis. No appointment is required.
- Clinic doors open at 8:00 AM, but we recommend arriving earlier as we reach capacity quickly.
- Due to limited capacity, we may not be able to see every patient, and a visit is not guaranteed, even to those who arrive early. We deeply appreciate your patience and understanding as we strive to serve as many individuals as possible within our available resources.
- Our schedule is subject to change—please see below for the most current clinic dates.
Arbor Fall 2025 Open Clinic Dates:
- September 28, 2025
- October 5, 2025
- October 12, 2025
- October 19, 2025
- October 26, 2025
- November 2, 2025
- November 9, 2025
- November 16, 2025
- November 23, 2025
- December 7, 2025
- December 14, 2025
Please note that we will be closed on November 30th, December 21st, December 28th, 2025, and January 4th, 2026.
IMPORTANT:
- Billing: Some Arbor patients have been incorrectly billed for services provided at Arbor. If you receive a bill, please do not pay it. Send a picture of the bill to arborclinic@stanford.edu along with your date of birth and the date of your visit to Arbor. We apologize for any inconvenience this may have caused.
- Messages: For any voicemails and e-mails to Arbor Free Clinic, please expect a response time of 2-3 business days. If you are experiencing a medical emergency, please do not wait for a response from Arbor Free Clinic and instead dial 911 or go to the nearest emergency room.
- Lab Results: Due to high laboratory/blood test and imaging volume in recent months, we are experiencing increased delays in follow-up calls to discuss non-critical laboratory/blood test and imaging results. In the meantime, you are welcome to access your results via the Stanford MyHealth portal here.
- Clinic Model: Please note that Arbor Free Clinic follows a transitional care model that aims to bridge patients to longer term primary care services. Our limited hours and availability prohibit us from serving as your long-term primary care office, but we will work with you during your visit to identify other free and low-cost primary care services that can better suit your long-term needs.
Welcome to Arbor
The Mission of Cardinal Free Clinics is to provide culturally appropriate, high quality transitional medical care for an underserved patient population and to educate and empower a new generation of health care leaders to proactively address health disparities and improve access to care in their communities.
Open to all regardless of immigration status, the clinic offers on-site medical services in your language of preference.