psychiatrist – mental health
podiatrist – foot doctor
optometrist – eye doctor
dentist – tooth doctor
urologist – deals with bladder
obstetrician – deals with pregnancy and birth
pediatrician – child doctor
oncologist- cancer doctor
neurologist – brain and nerves
cardiologist – heart
nephrologists – kidney doctor
rheumatologist – treatment of arthritis and other diseases of the joints,
                         muscles and bones
dermatologist – skin
endocrinologist – thyroid and ductless glands
gastrologist – digestive system