A psychologist has completed post-graduate doctoral studies. A psychologist can provide various kinds of talk therapy, generally referred to as psychotherapy. They help individuals with emotional and behavioral challenges. Frequently psychologists and psychiatrists will work together to provide integrated care.
A psychiatrist has completed medical school and is a medical doctor in the same way your family physician is a doctor. Since psychiatrists are medical doctors, they can recognize when psychological difficulties may be due to seemingly unrelated medical illnesses. They can also collaborate effectively with physicians in other specialties to coordinate care as a team endeavor.