Occupational medicine is the branch of medicine that deals with the health of workers. An occupational medicine physician treats work-related injuries that include lung disease, breathing disorders, allergic reactions to chemicals, or chemical burns. This specialist also works with business owners and workplace safety organizations to protect the health of workers and to prevent work-related injuries, accidents and diseases.

Doctor density varies by specialty and location. The United States has 3,437 practicing occupational medicine doctors. Broken out by state, occupational medicine doctor density in Alabama is 53, in Alaska is 9, in Arizona is 92, in Arkansas is 14, in California is 533, in Colorado is 127, in Connecticut is 62, in Delaware is 10, in District of Columbia is 28, in Florida is 154, in Georgia is 119, in Hawaii is 34, in Idaho is 17, in Illinois is 154, in Indiana is 113, in Iowa is 47, in Kansas is 33, in Kentucky is 39, in Louisiana is 37, in Maine is 29, in Maryland is 111, in Massachusetts is 95, in Michigan is 186, in Minnesota is 97, in Mississippi is 12, in Missouri is 110, in Montana is 7, in Nebraska is 10, in Nevada is 30, in New Hampshire is 20, in New Jersey is 95, in New Mexico is 31, in New York is 114, in North Carolina is 57, in North Dakota is 9, in Ohio is 186, in Oklahoma is 57, in Oregon is 55, in Pennsylvania is 166, in Rhode Island is 10, in South Carolina is 38, in South Dakota is 4, in Tennessee is 65, in Texas is 262, in Utah is 41, in Vermont is 5, in Virginia is 84, in Washington is 107, in West Virginia is 25, in Wisconsin is 80, and in Wyoming is 2.