Dr. Hammill speaks Spanish. He is professionally affiliated with Texas Children's Hospital (TCH). Before performing his residency at a hospital affiliated with the University of California, Los Angeles (UCLA), Dr. Hammill attended Columbia University, College of Physicians and Surgeons for medical school. Dr. Hammill takes Blue Cross Blue Shield Bronze, Blue Cross Blue Shield HMO, Blue Cross Blue Shield Gold, and more. He has received professional recognition including the following: Texas Super Doctors.