There are many types of mental health providers. Some manage medications, some offer psychotherapy, and some help you find services in the community, such as housing. Oftentimes, the lines between their services blur.

States generally license mental health providers and set requirements for maintaining and updating training and skills. These requirements can vary widely, so consider learning your state's regulations before beginning treatment. Some terms are used broadly and mean different things in different states. For instance, to some, "psychologist" loosely means anyone who provides psychotherapy, while to others it means someone with a doctoral degree who has met specific training and education criteria.

Click on the tabs to the left to find out what distinguishes one type of mental health provider from another.

Psychiatrists are physicians (M.D. or D.O.) who specialize in the diagnosis, treatment and prevention of mental illnesses. After medical school, they complete at least another four years of training in residency. A psychiatrist who passes certain exams can be certified by the American Board of Psychiatry and Neurology. Some psychiatrists seek even more advanced training to specialize in certain areas, such as geriatric or addiction psychiatry.

Because they're doctors, psychiatrists can prescribe medications. They also offer psychotherapy. They may work with you on everyday problems like stress or more complex issues, such as schizophrenia or suicidal thoughts. Psychiatrists work in private practice, psychiatric hospitals, medical centers, community agencies, schools and other settings.

Psychologists are specialists in psychology, the branch of science that deals with the mind, mental processes and behaviors. There are many types. Those who treat mental illnesses are generally clinical or counseling psychologists. The title psychologist is usually reserved for those who have a doctoral degree (Psy.D. or Ph.D.), advanced training, and certain licensing and certification. However, the title is sometimes loosely used to mean someone who has only a master's degree.

Psychologists provide psychotherapy for a range of problems, from marital discord to personality disorders. They work in private practice, hospitals, schools, community agencies and other settings. Psychologists can't prescribe medications except in New Mexico and Louisiana — the only states that grant privileges to specially trained psychologists.

Psychotherapist is a general term for a mental health provider. Psychotherapists may be psychologists, social workers, psychiatric nurses, marriage and family therapists, pastoral counselors or others who provide psychotherapy. Some people who set up shop as therapists have no formal training and aren't subject to any state laws or regulations.

Social work is a broad profession. In general, social workers help people overcome social and health problems. Most have a master's degree in social work (M.S.W.), but training and education vary widely. To provide mental health services, they must have advanced training and be licensed by their states.

Licensed clinical social workers may provide therapy in private practice, psychiatric facilities, hospitals and community agencies. Others may work in employee assistance programs or as case managers who coordinate psychiatric, medical and other services on your behalf. They may specialize in certain areas, such as domestic violence or chronic illness. They can't prescribe medication or order medical tests.

Psychiatric nurses are licensed registered nurses (R.N.) who have extra training in mental health. They may have an associate arts degree or a bachelor's, master's or doctoral degree. Their level of training and experience determine what services they can offer. Under supervision of medical doctors, they may offer mental health assessments and psychotherapy, and they may help you manage your medications.

Advanced practice registered nurses (A.P.R.N.) have at least a master's degree in psychiatric-mental health nursing. In general, they can diagnose and treat mental illnesses, and in many states they're authorized to prescribe medications. They also may be qualified to practice independently, without the supervision of a doctor.

Mental health counselor is a broad term for an individual who provides counseling. Most have at least a master's degree in social work or a related field, have several years of supervised work experience, and are licensed or certified. They may also be called licensed professional counselors, licensed mental health counselors or professional counselors. Licensure and certification require additional schooling, experience and training.

Counselors may specialize in certain areas, such as career counseling, marriage or substance abuse. They may work in private practice, community agencies, hospitals, employee assistance programs or other settings. They offer help for a range of problems, from anxiety and depression to job stress and grief.

These therapists evaluate and treat disorders within the context of the family. They typically have a master's or doctoral degree. After additional experience under supervision, they may go on to take an exam to become licensed or certified. Not all states require licensing or certification, however.

Marriage and family therapy is usually brief — averaging about 12 sessions — and focuses on specific problems and solutions. You may meet with a therapist one-on-one, with a partner or with your whole family. These therapists provide help with a range of problems, such as depression, parent-child conflicts and eating disorders.

Pastoral counselors are trained mental health providers who also have in-depth religious or theological training. They provide psychotherapy and other support in a spiritual context. Certification and licensing varies. There are several levels of certification, each with its own requirements stipulating such things as religious activity, coursework, research, publication and experience.

Pastoral counselors provide a variety of services, such as treatment of mental illnesses, wellness programs, spiritual direction, group therapy, and family and couples therapy. They may work in pastoral counseling centers, schools, religious communities or other settings.

Although the term "psychoanalysis" is often used loosely, it refers to a specific treatment — developed by Sigmund Freud — that explores unconscious factors that influence relationships and behavior. Virtually anyone can call himself or herself a psychoanalyst since the designation isn't protected by law. However, many psychoanalysts seek extensive training or certification. Those who train at accredited psychoanalytic institutes are typically medical doctors, psychologists or social workers. They generally undergo at least four years of psychoanalytic training, coursework, their own psychoanalysis, and perform psychoanalysis of others under supervision.

Treatment is intensive, with several sessions a week for five to 10 years. During this time you lie on a couch and talk about whatever comes to mind.