His patients gave him an average rating of 3.5 out of 5 stars. Dr. Halwig honors Humana HMO, Humana Bronze, and Humana Catastrophic, as well as other insurance carriers. He attended medical school at Northwestern University, Feinberg School of Medicine. Dr. Halwig completed his residency training at Northwestern Memorial Hospital. He is affiliated with The Children's Care Network, WellStar Cobb Hospital, and WellStar Douglas Hospital.