Donald D. Horowitz Practices As A Psychiatrist In Claremont, CA. Serving The Claremont Area In The Areas Of Mental Health, Psychiatry Practitioner And Mental Health Counseling. Offering Service In The Area Of Anxiety, Behavioral Medicine, Child Counseling Cognitive Therapy, Depression, Disability Counseling, Eating Disorders, Family Counseling, Individual Counseling, Medication Management,...