Where To Test

ZIZ Utrecht

Private clinic · Utrecht, Netherlands

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Can I go now?

Walk in — no appointment needed

From clinic website· 22 Sep 2026

Do the online intake on the site first, then walk in.

Can a visitor use it?

Check with the clinic before you go — The site says better STI care for everyone and needs no referral, but does not mention visitors or people without Dutch insurance.

What will it cost?

STI check from €39

Full price list ↓

About

A recognised private STI clinic next to Utrecht Centraal that the GGD itself recommends to people it cannot book, with the lowest published prices we found in the Netherlands (chlamydia and gonorrhoea €39, HIV or syphilis €15), results from 30 minutes and free treatment of anything it finds; it says nothing about visitors.

Specialises in
Everyone welcome
From clinic website· 22 Sep 2026

This clinic doesn’t advertise itself as LGBTQ+ friendly. Most clinics don’t, so this isn’t a sign that it’s unwelcoming. If you’ve been, tell us how you were treated.

Services

HIV lab test — Yes
Blood draw; result in days; picks up recent infection sooner than rapid tests.
Full STI check — Yes
Chlamydia, gonorrhoea and syphilis (usually with HIV) in one visit.
Chlamydia, gonorrhoea, syphilis, HIV, trichomonas, hepatitis B and C and mycoplasma, each priced separately.
Syphilis test — Yes
Blood test.
Hepatitis B & C test — Yes
Blood test.
Treatment on site — Yes
Antibiotics or injections given at the clinic.
Treatment of chlamydia, gonorrhoea, syphilis, mycoplasma, trichomonas and herpes is included, but only for infections found through ZIZ.
Same-day results — Yes
Some or all results before you leave.
Results from 30 minutes; a faster 30-minute result instead of 90 costs €15 extra.

Results: From 30 minutes.

Booking, access & languages

Do the online intake on the site first, then walk in.

No referral required
You can come without a doctor’s referral.
GGD regio Utrecht sends people it cannot book straight to ZIZ.
Walk-in — Yes
No appointment needed (check the hours).
Complete the online steps, then walk in without an appointment.
No appointment required
You can come without booking (check the hours).

Languages: Dutch — The site is in Dutch.

Cost

ServiceWhoCost
Full STI check
Chlamydia and gonorrhoea together €39; syphilis €15; HIV €15; hepatitis B €15; trichomonas €39; mycoplasma genitalium €49.
EveryoneFrom €39
ZIZ says you pay one price with no hidden costs afterwards, and that a Dutch insurer contributes €32 per appointment; ask what you pay without a Dutch insurer.
HIV lab testEveryoneFrom €15
Syphilis testEveryoneFrom €15
Same-day resultsEveryoneFrom €15
Surcharge for a result after 30 minutes instead of 90.
Treatment on siteEveryoneFree
Free treatment is standard for STIs found through ZIZ (chlamydia, gonorrhoea, syphilis, mycoplasma, trichomonas, herpes).

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

Netherlands: good to know

  • PEP in this country. GGD regio Utrecht says the PEP course must start within 72 hours of the sex. In office hours phone the GGD on 030 800 33 21; in the evening and at the weekend phone the emergency department (spoedeisende hulp) of UMC Utrecht on 088 75 666 66. It says a Dutch health insurer reimburses PEP, which counts towards your excess; it does not say what people without Dutch insurance pay.
  • What visitors pay. GGD regio Utrecht only books STI tests for people who meet its criteria (under 25, men and trans people who have sex with men, sex workers, people warned by a partner, people with symptoms, people with a migration background, people who have experienced sexual violence). It tells everyone else to see a GP or to book at ZIZ, a private clinic near Utrecht Centraal that prices a chlamydia and gonorrhoea test at €39 and HIV or syphilis at €15 each. Other private clinics charge from €115. For PEP with foreign insurance, GGD Rotterdam-Rijnmond says to expect to pay about €1,000 at the pharmacy and claim it back.

Emergency number: 112

Sources & last checked

Last checked 22 Sep 2026.

  • e1 · From clinic website · 22 Sep 2026 · ziz.nl — Home page: recognised care institution (AGB code) with contracts with all insurers; better STI care for everyone; Smakkelaarshoek 18, 3511 EC Utrecht; hours Mon–Wed 9–17, Thu 12–20, Fri 9–17, Sat 11–17, Sun closed; prices; results from 30 minutes, €15 for 30 instead of 90; free treatment included for STIs found via ZIZ; online steps then walk in without appointment; insurer contributes €32 per appointment; phone 085 800 0742.
  • e2 · Published by GGD regio Utrecht · 22 Sep 2026 · ggdru.nl — GGD test page: people who do not meet its criteria can make an appointment at ZIZ, which provides fast and cheap STI tests in Utrecht.

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