I used to work for an organization that employed both psychiatrists and psychologists. In my experience, psychiatrists (trained in western medicine) are far more interested in prescribing drugs than in talk therapy, and the patients that go to them tend to have psychological illnesses based on chemical imbalances, which can be treated or managed with drugs. Psychologists' training is more about talk therapy and other theraputic methods that are not drug-based. In the organization I worked for, people would regularly see the psychologists for 1-hour sessions, and then see the psychiatrist for a 15 minute consultation, long enough to get a prescription.