The Center on Colfax - LGBTQ Colorado

STI Testing from Denver Health – APPOINTMENT ONLY
2026-05-04 10:00 - 16:00 (America/Denver) | The Center on Colfax, 1301 E. Colfax Ave., Denver, CO, 80218, United States
STI Appointments at the Center on Colfax are available on an array of dates throughout each month. See below for specific upcoming available dates.
Most testing dates require an appointment, unless otherwise noted in the Upcoming Testing Dates list below. To schedule an appointment, you can call or text the Denver Health Outreach mobile number at 720-415-7075, Monday through Friday between 8:00 AM and 5:00 PM, or click here for online scheduling options. Please note that Denver Health will take the last person 30 minutes prior to closing.
FAQ's:
What tests are available? HIV, STI, etc.?
Prevention in Outreach offers rapid testing for HIV, Hepatitis C and Syphilis. Syphilis rapid testing is dependent on not having been diagnosed for syphilis prior. Chlamydia and gonorrhea tests are completed through traditional lab-based testing, with results taking between 2-3 business days. The Outreach team will discuss options for how results are delivered to clients.
How does one make an appointment? What days can one make an appointment? What are the general hours testing is available?
Appointments are typically offered Wednesdays from 10:00 AM - 2:00 PM and Thursdays from 12:00 - 4:00 PM. There are some exceptions to this general schedule, so see above for specific upcoming dates. Appointments are held at The Center on Colfax.
To schedule an appointment, you can call or text our Outreach mobile number at 720-415-7075, Monday through Friday between 8am and 5pm.
Other important information -
The Public Health Institute at Denver Health’s Outreach team does provide testing services outside of The Center, on a walk-in basis, daily, at multiple locations throughout the Metro. There are morning and evening walk-in times available, please call or text 720-415-7075 for locations and hours.
We also provide pre-exposure prophylaxis (PrEP) education and navigation services. There are payment assistance options that we can help enroll individuals into and help schedule appointments, all at no cost.
