Kirsch Therapy Kirsch Therapy is a family run private practice providing pediatric occupational and speech therapy services for children ages birth to 18. We are conveniently located in Vista off the 78 freeway in North San Diego County. Our office prides itself in excellence and customer service and strives to make your and your childs experience with us positive, fun and rewarding. All of our therapists are licensed, board certified and current members of their professional organization. They participate in on-going continuing education programs and are up-to-date on the latest research and treatment methodologies in their fields. Our therapy programs are developmentally appropriate, family oriented and play-based to make therapy a fun experience.