Magnet, our sexual health clinic in the Castro, provides STI testing and treatment, HIV testing and linkage to care, PrEP services, anal health services and more.
Magnet is located on the second floor at Strut, 470 Castro Street, San Francisco. Reach us at 415-581-1600.
Interested in Doxy PEP for prevention of STIs? Find more info here.
Hours of Operation
Tue–Sat 10-7 pm (Closed from 1-3 pm on Fridays)
Christmas Holiday Hours:
- Fri 12/22 Closed
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Sat 12/23 Closed
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Sun 12/24 Closed
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Mon 12/25 Closed
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Tue 12/26 Closed
Access Magnet Services
Service |
How to Access Services |
Express STI testing (Magnet Express)
- Full STI panel.
- No nurse visit to review concerns
- Folks with questions or concerns, symptoms, recent exposures, or who need same-day treatment should book a full sexual health screen (SHS) appointment.
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Drop-in visits available during open hours.
You will self-swab for STIs and a phlebotomist will draw your blood.
Visit will be 10 mins. |
PrEP Enrollment (new clients)
- Can be scheduled ahead of time online or over the phone.
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Make an appointment online.
Please note: If you’re having trouble finding an appointment time online that works for your schedule, please call us. We will try to find a time that works for you.
Call 415-437-3450 or 415-581-1600, press option 1.
PrEP services not available for people with Kaiser, VA benefits, or Tricare. |
PrEP Express Follow-Up Visit
- Can be scheduled ahead of time online or over the phone.
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Drop-in visits available during open hours.
Note: PrEP Express drop-in ends at 6:30 pm on Fridays and Saturdays.
Call 415-437-3450 to book in advance. |
Interim HIV care: Emergency HIV meds
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Call 415-437-3450 for an appointment; email assist4HIV@sfaf.org |
Gender-affirming care (hormones & hormone level checks)
- Can be scheduled ahead of time online or over the phone.
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Call 415-437-3456 for info or an appointment. |
About Drop-In Appointments
Drop-in instructions: Appointments are limited as our services are in high-demand. To book a same-day appointment, grab a ticket from the ticket machine outside the building starting at 9:30 am each day, and come back at 10 am when we open. If you aren’t back at 10 am or if you lose your number, we will give your spot to the next person.
Getting a ticket does not guarantee there will be an appointment available on the same day. If you arrive without an appointment and we are booked, we will do our best to refer you to another sexual health provider in the area, but cannot guarantee their availability.
We do not schedule ahead of time for screenings unless you have already tested and have a positive test result, or you are in our PrEP program and are due for a refill on your prescription.
Request your medical records
There are three ways to receive your medical record from Magnet.
- You can find your medical records in the Patient Portal.
- We can provide your records in-person at Magnet. You must have a government issued photo ID and sign a release of information form. We will do our best to provide your records promptly but we may ask for additional time to provide the records depending on the availability of staff to copy your records.
- We can email or securely mail your records to you. Email medicalrecords@sfaf.org to make a request.
Please allow for 24-48 business hours for a medical records requests to be completed. If you are requesting medical records from year 2017 and earlier it may take 5-7 business days to be completed.