Physician Directory - Specialty Descriptions Following is a list of physician specialties followed by descriptions. Once you find the specialty you are looking for, click on one of the following links to find a physician. - Find a physician by name. Find a physician by location. Find a physician by specialty. Using This Database: Click on the black triangles on the title bar to change the sort order. Click on a blue triangle to expand or collapse that category. Specialty Description A Psychiatrist is a physician who specializes in the prevention, diagnosis and treatment of mental, addictive and emotional disorders, e.g. psychoses, depression, anxiety disorders, substance abuse disorders, developmental disabilities, sexual dysfunctions, adjustment reactions, etc. Psychiatrists understand the biological, psychological and social components of illness and are qualified to order diagnostic laboratory tests and to prescribe medications, as well as to evaluate and treat psychological and interpersonal problems. Psychiatrists are also prepared to intervene with individuals and families who are coping with stress crises and other problems of living. Expand  |  Collapse