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The Center on Colfax

STD/STI testing location in Denver, Colorado.

Verify with the clinic before visiting. Hours, services, fees and appointment rules change. Call ahead to confirm. This directory is for information only and is not medical advice. In an emergency, call 911.

Address: 1301 E Colfax Ave, Denver, CO 80218
Get directions

Phone: (303) 733-7743

Website: https://lgbtqcolorado.org/

Tests listed

Cost and payment

No Fee, Free STI Test, Free HIV Test.

This location lists free STI and/or HIV testing. Eligibility rules may apply.

Hours

Hours not listed. Call before visiting.

Appointment required: Yes

Languages: English, Spanish

Type: Community Based Organization

Source: CDC NPIN listing. Last updated by source: 2025-11-21. Page built 2026-11-03.

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