Dr. David J Horwitz specializes in physician assistant in Arcata area. Dr. David J Horwitz, PA has a medical practice at 770 10th Street, Arcata CA, and has over 38 years of experience in the field of medicine. He graduated from his medical school with his medical degree in 1979. He is affiliated with numerous hospitals, including Mad River Community Hospital (CA) and more. Dr. Horwitz is accepting new patients at his medical office and practice location in Arcata, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.