San Mateo County Commission on Aging 225 - 37th Avenue San Mateo, CA 94403-4324 Attn: Marsha Fong (650) 573-2701 (Voice)  711 for the California relay service (TDD) (650) 372-0729 (Fax)     E-mail the Commission For security reasons e-mail attachments are not accepted. For information, advice and 24-Hour emergency referrals San Mateo County Aging & Adult Services 1(800)675-TIES (8437) 711 for the California relay service (TDD)