Magnet at Strut (San Francisco AIDS Foundation)

Community clinic · San Francisco, United States

Checking today’s hours…

Can I go now?

Walk in — no appointment needed

From clinic website· 22 Sep 2026

Book online or by phone; a limited number of same-day drop-in appointments are available. For PEP, call before arriving.

Can a visitor use it?

Check with the clinic before you go — Welcomes people of any gender identity and sexual orientation; residency and visitors are not mentioned.

What will it cost?

STI check free

Full price list ↓

About

LGBTQ+-focused sexual health clinic in the Castro that tests, treats, and offers PEP, PrEP and Doxy-PEP, and states that care is provided without regard to ability to pay or insurance status.

Specialises in: Gay, bi & other men who have sex with men · Trans & non-binary people · Lesbian, bi & queer women
Also serves: Everyone welcome

From clinic website· 22 Sep 2026

470 Castro Street, San Francisco, CA 94114

Follow the address rather than the map pin.

Directions Call Website

Opening hours

Checking today’s hours…

Monday	Closed
Tuesday	10:00–19:00
Wednesday	10:00–19:00
Thursday	10:00–19:00
Friday	10:00–13:00, 15:00–19:00
Saturday	10:00–19:00
Sunday	Closed

Hours might differ on public holidays. Strut building hours Tuesday–Saturday, closed 1–3pm on Fridays. Clinic appointment times may be shorter.

See on the San Francisco map →

Services

Rapid HIV test — Yes

Finger-prick or mouth swab; result in about 20 minutes.

Rapid HIV and hepatitis C results the same day.

Full STI check — Yes

Chlamydia, gonorrhoea and syphilis (usually with HIV) in one visit.

HIV, chlamydia, gonorrhoea, syphilis and hepatitis C.

Syphilis test — Yes

Blood test.

Seen with symptoms — Yes

Will examine and treat if you have symptoms, not only screen.

Treats syphilis, gonorrhoea, chlamydia, herpes, warts, scabies and other conditions.

Treatment on site — Yes

Antibiotics or injections given at the clinic.

Same-day results — Yes

Some or all results before you leave.

Rapid HIV and hepatitis C only; other results within about a week.

PEP (after HIV exposure) — Yes

Emergency 28-day medicine; must start within 72 hours.

Call first so they can make sure you are seen; limited same-day drop-in slots.

PrEP — start here — Yes

Can prescribe PrEP, including to visitors.

DoxyPEP — Yes

Doxycycline after sex to cut syphilis and chlamydia risk; not offered everywhere.

Hep A / B vaccine — Yes

Mpox vaccine — Yes

Free condoms & lube — Yes

Results: Rapid HIV and hepatitis C the same day; other results through the client portal within about a week

Booking, access & languages

OnlinePhoneWalk in

Book online or by phone; a limited number of same-day drop-in appointments are available. For PEP, call before arriving.

No insurance required

You can be seen without local insurance or a health card.

Walk-in — Yes

No appointment needed (check the hours).

Only a limited number of same-day drop-in appointments.

Languages: English — The website has Spanish-language service pages; ask about Spanish-speaking staff.

Cost

Service	Who	Cost
Full STI check HIV, hepatitis C and STIs; treatment for positive results included	Everyone	Free San Francisco AIDS Foundation offers free, confidential testing for HIV, hepatitis C and STIs and free treatment for infections. It says most clients pay little or nothing, some visits may carry a co-pay, the clinic has begun billing insurance, care is provided without regard to ability to pay or insurance status, and free care is ensured for any client who cannot afford to pay.
PEP (after HIV exposure)	Everyone	Free Full PEP services with a full month of medication free; the PrEP/PEP page says services are provided at no cost to community members.
Hep A / B vaccine	Everyone	Free Vaccinations and immunisations are offered free.

Prices are shown in the local currency as stated by the source on the date shown. “Consultation” is often charged separately from tests.

After you leave

Results by: online portal

Non-rapid results are delivered through the client portal.

United States: good to know

PEP in this country. San Francisco AIDS Foundation (Magnet at Strut) asks you to call 415-581-1600 before coming for PEP so they can make sure you are seen; if they cannot, they refer you to another clinic. When clinics are closed, they say to go to an emergency room right away. PEP must start within 72 hours.
From San Francisco AIDS Foundation’s website· 18 Sep 2026

Emergency number: 911

Sources & last checked

Last checked 22 Sep 2026.

e1 · From clinic website · 22 Sep 2026 · www.sfaf.org — Services, who it serves, cost statement, drop-in slots, results.
e2 · From clinic website · 18 Sep 2026 · www.sfaf.org — Strut address, phone and hours.
e3 · From clinic website · 22 Sep 2026 · www.sfaf.org — PEP access, call-first advice, no-cost statement, emergency room advice when closed.

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