Genetics is the study of the chemistry of cells, tissues and organs associated with heredity. A clinical geneticist performs tests to diagnose and manage genetic disorders, and offers counseling services. A clinical genetic study involves tests of genetic material to determine possible genetic disorders in future generations.

Doctor density varies by specialty and location. The United States has 693 practicing clinical geneticists. Broken out by state, clinical genetics doctor density in Alabama is 9, in Alaska is 1, in Arizona is 10, in Arkansas is 4, in California is 138, in Colorado is 15, in Connecticut is 15, in Delaware is 7, in District of Columbia is 16, in Florida is 24, in Georgia is 15, in Hawaii is 4, in Idaho is 1, in Illinois is 31, in Indiana is 11, in Iowa is 6, in Kansas is 4, in Kentucky is 7, in Louisiana is 7, in Maine is 9, in Maryland is 43, in Massachusetts is 55, in Michigan is 31, in Minnesota is 19, in Mississippi is 6, in Missouri is 24, in Montana is 3, in Nebraska is 3, in Nevada is 4, in New Hampshire is 3, in New Jersey is 17, in New Mexico is 4, in New York is 65, in North Carolina is 20, in North Dakota is 1, in Ohio is 44, in Oklahoma is 6, in Oregon is 16, in Pennsylvania is 42, in Rhode Island is 3, in South Carolina is 21, in South Dakota is 2, in Tennessee is 19, in Texas is 58, in Utah is 11, in Vermont is 3, in Virginia is 21, in Washington is 32, in West Virginia is 1, and in Wisconsin is 17.