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Cornerstone Medical Services (CMS) – Lynnwood Clinic

STD/STI testing location in Lynnwood, Washington.

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: 17414 Hwy 99, Ste 104, Lynnwood, WA 98037
Get directions

Phone: (206) 327-2433

Website: https://cmsfreeclinic.org

Tests listed

Cost and payment

No Fee.

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

Hours

Sunday1:00am – 4:00pm

Appointment required: No (walk-ins may be accepted)

Languages: English, Spanish

Type: Clinic

Source: CDC NPIN listing. Last updated by source: 2025-08-26. Page built 2026-11-03.

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