At Columbia Associates, We Emphasize Results. Columbia Associates in Psychiatry is the largest and oldest child and family psychiatric practice in the Washington Metropolitan Area. Our group of psychiatrists, psychologists, advanced practice nurses, social workers, and dietitians have exceptional experience working with children, adolescents, adults, and families with a wide range of disorders. And with locations in both Virginia and Maryland, we are able to serve you more conveniently. At Columbia Associates, we partner with you, our patient, through the course of evaluation and treatment. This allows us to understand your needs, describe the most effective treatment options, and support you in your efforts toward improving your specific health issues. And at our office we understand the financial and insurance considerations that impact your decisions. At Columbia associates, our relationship is with you; not with insurance companies.