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Marys Center – Headquarters and Adams Morgan/Ontario Clinic
STD/STI testing location in Washington, District of Columbia.
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: 2333 Ontario Rd NW, Washington, DC 20009
Get directions
Phone: (844) 796-2797
Website: https://www.maryscenter.org
Tests listed
- Chlamydia Test
- Conventional HIV Test
- Gonorrhea Test
- Hepatitis B Test
- Hepatitis C Test
- Herpes Test
- Rapid HIV Test
- Syphilis Test
- TB Test
Cost and payment
Donations Accepted, Medicaid Accepted, Sliding Scale, Medicare Accepted, Fee, Insurance Accepted.
Hours
| Monday | 9:00am – 5:00pm |
| Tuesday | 9:00am – 5:00pm |
| Wednesday | 9:00am – 5:00pm |
| Thursday | 9:00am – 5:00pm |
| Friday | 9:00am – 5:00pm |
Appointment required: Yes
Other services
STI treatment, PrEP (HIV prevention medicine).
Languages: English, French, Spanish
Type: Federally Qualified Health Center (FQHC)
Source: CDC NPIN listing. Last updated by source: 2025-11-18. Page built 2026-11-03.