Join Now Hattiesburg Clinic Medical Hattiesburg Clinic Visit Website 415 South 28th Avenue Hattiesburg, MS 39401 (601) 268-5606 Facebook Instagram YouTube About Map About Hattiesburg Clinic is a multi-specialty medical facility serving 17 counties with over 450 physicians and providers. What's Nearby? Distance: 5 10 15 20 25 50 mi.