A podiatrist is a doctor of podiatric medicine (DPM) specializing in the prevention, diagnosis, and treatment of the foot, ankle, and related structures of the leg. Podiatrists treat common foot conditions including bunions, hammertoe, plantar fasciitis, and neuroma, as well as injuries to the foot and ankle, such as sprains and stress fractures.
Podiatrists complete four years of medical training in podiatry and three years of hospital residency training; they may specialize in a variety of fields, including surgery, sports medicine, wound care, pediatrics, and diabetic care.

Hospice care & Palliative medicine specialists focus their practice on pain management, symptom relief and qualify-of-life treatments to relieve the suffering of terminally ill patients. These doctors have specialized expertise in the treatment of patients with serious illnesses, advanced diseases and conditions resulting from catastrophic injury. Though often they work within hospice settings, they prevent and alleviate suffering appropriate at any age and stage of disease and can work alongside practitioners providing curative treatments.
Hospice care & Palliative medicine focuses on depression, pain, fatigue, constipation, nausea, shortness of breath, loss of appetite and difficulty sleeping, among other conditions. They also alleviate psychosocial distress and other stressors that accompany terminal illnesses. They are skilled in guiding families through legal and ethical decision-making in end-of-life care and can address spiritual issues at these times. By coordinating care across settings by improving communication among providers, they improve access to information for families so that they understand the patient's condition and treatment options.

A physiatrist is a doctor who specializes in the rehabilitation and physiological treatment of patients with an illness or injury that affects movement.
These specialists have extensive knowledge of the nerves, muscles, bone, and brain. Physiatrists are also experts in pain medication.
Some common conditions that physiatrists treat are rheumatoid arthritis, neurological and spinal disorders and injuries, chronic pain disorders, like fibromyalgia, and musculoskeletal issues, like broken bones and torn muscles.
These physicians also often coordinate a team of other specialists in order to maximize the patient's recovery, such as occupational therapists, speech therapists, neurologists, orthopedists, and counselors.

Anesthesiologists are physicians who are trained to administer anesthetics, which are medicines used to block nerve sensation. Anesthesia can be either local to one specific part of a body, like a tooth, or regional to block feeling to a larger portion of the body, such as during an epidural for child birth. It can also be more general to block sensation to the entire body, resulting in unconsciousness.
Anesthesiologists assist in surgery by determining how much anesthesia is necessary and by monitoring the patient's level of responsiveness and vital signs throughout the procedure. The anesthesia specialist will also bring the patient out of anesthesia and then continue to monitor his or her vital signs post-operation.
Besides assisting in surgeries, anesthesiologists may also treat patients suffering from chronic pain.