Knudsen, Thomas E., PsyD Provider: Knudsen, Thomas E., PsyD Specialty: Psychiatry, Child & Adolescent, Psychology Rubenzahl, Knudsen & Associates Psychological Services, PC 22670 Summit Drive, Suite 2 Watertown, NY 13601 Phone: (315) 788-3332 Fax: (315) 788-4584 http://rkapsych.com/ Associated Practice Providers: Rubenzahl, Samuel A., PhD