Areas of expertise for Dr. Gantwerker include sinusitis (sinus infection), tonsilitis, and ear infection. He takes Blue Cross/Blue Shield, Blue Choice, and Blue Cross Blue Shield Bronze, as well as other insurance carriers. Dr. Gantwerker graduated from Rush Medical College. Dr. Gantwerker completed his residency training at a hospital affiliated with the University of Cincinnati. In addition to English, Dr. Gantwerker (or staff) speaks Mandarin, Hebrew, and Filipino. He is professionally affiliated with Children's Health (Texas), Texas Health Dallas, and the University of Texas (UT) Southwestern Medical Center. His practice is open to new patients.