Back to Directory Add to Address Book Maria Martinez-Mendez, LCSW Social Worker Office Location 1: Sandra Joy Anderson Community Health & Wellness Center Walk-In Care Has Moved Walk-In Care services are now located at Capital Plaza Specialty Clinic.📍 5339 N. Interstate Hwy 35, Suite 100 Austin, TX 78723. 📞 Call (512) 978-9940 with any questions.