Tammy Cao, Counselor works in the Philadelphia, PA office at LifeStance. Areas of Expertise: Anxiety, Bipolar Disorder, Depression, Grief, Later Life Transitions. Ages seen: 0-5, 06-10, 11-14, 15-17, 18-21, 22-26, 27-40, 41-64, 65+. Take the first step towards improved mental health. Call or book online today.