A Psychologist is a healthcare professional that has earned an advanced graduate degree in Psychology (PsyD or PhD). Psychologists can perform tests and assessments that can help diagnose a condition or tell more about the way a person thinks, feels, and behaves. These tests may evaluate intellectual skills, cognitive strengths and weaknesses, learning disabilities and preferences, personality characteristics, and neuropsychological functioning. Psychologists can also use their skills to help people learn to cope with stressful situations, overcome addictions, manage their chronic illnesses and much more.

A psychiatrist is a medical doctor (completed medical school and residency) with special training in psychiatry. A psychiatrist is able to conduct psychotherapy and prescribe medications and other medical treatments.
A psychologist usually has an advanced degree, most commonly in clinical psychology, and often has extensive training in research or clinical practice. Psychologists treat mental disorders with psychotherapy and some specialize in psychological testing and evaluation.

Licensed Clinical Professional Counselors (LCPC), Licensed Marriage and Family Therapists (LMFT), and Licensed Clinical Social Workers (LCSW) provide mental health services. Therapists require Master Degrees and approval of their licensing boards to practice in the mental health field. Therapists provide mental health diagnosis and develop a treatment plan. There are many different types of therapy such as play therapy, cognitive behavioral therapy, animal-assisted therapy, dialectal behavioral therapy, and many others. Therapists cannot recommend or order medications, but they can refer you for evaluation for medication or other treatments.