Dr. Nestor Denis Karas, MD is a health care provider primarily located in Walnut Creek, CA, with another office in San Francisco, CA. He has 29 years of experience. His specialties include Oral & Maxillofacial Surgery, Surgery, Orthopedic Surgery, Other Specialty, Dentistry. Dr. Karas is affiliated with John Muir Medical Center Walnut Creek. He speaks English.