Dr. William Welch is a neurosurgeon in Philadelphia, Pennsylvania and is affiliated with multiple hospitals in the area, including Hospitals of the University of Pennsylvania-Penn Presbyterian and Pennsylvania Hospital. He received his medical degree from State University of New York Downstate Medical Center College of Medicine and has been in practice for 30 years. He is one of 27 doctors atHospitals of the University of Pennsylvania-Penn Presbyterian and one of 17 at Pennsylvania Hospitalwho specialize in Neurological Surgery.