Dr. Maria E Thornton specializes in physical therapy in Grass Valley area. Dr. Maria E Thornton has a medical practice at 104 Margaret Lane, Suite B, Grass Valley CA, and has over 4 years of experience in the field of medicine. She graduated from her medical school with her medical degree in 2013. Dr. Thornton is accepting new patients at her medical office and practice location in Grass Valley, California. She is available for appointments, preventative care, medical care as well as ongoing patient care.