Staff
Leadership
Chris Hall, MD, Medical Director
Tim Ryan, RN, MSN, Clinical Services Manager 415.581.1612
Staff
Brian Davis, RN, MSN, FNP, Staff Nurse Practitioner 415.581.1618 bdavis@sfaf.org
Jose Luis Guzman, CPT, HIV Testing Services Coordinator 415.487.8033 jguzman@sfaf.org
Geoffrey Kellogg, Research Assistant gkellogg@sfaf.org
Omar Sahak, Research Assistant 415.699.7631 osahak@sfaf.org
Mat Sommers, Lab Technician msommers@sfaf.org
Jim Widmark, Phlebodomist jwidmark@sfaf.org
Corey Sayles, Volunteer Services Manager 415.581.1608 csayles@sfaf.org
Greg Zhovreboff, Community Organizer 415.581.1613
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