Dr Nader Ghiassi

Dr. Ghiassi graduated from San Clemente High School and continued his pre-doctoral studies at the University of California, Irvine. He earned his Doctor of Dental Surgery degree from the University of Southern California (USC), where he later served as a preclinical instructor and participated in a Fellowship in Oral Implantology. After gaining valuable experience in group practices, Dr. Ghiassi founded Ortega Dental Care in 2004 — a practice built on trust, comfort, and excellence. Over the years, he has become known for his expertise in single dental implants, full-arch All-on-4 restorations, cosmetic and orthodontic treatments, crowns, gum surgery, and sleep apnea therapy. Dr. Ghiassi continually invests in the latest dental technology to deliver precise diagnoses and advanced treatment options. By combining cutting-edge equipment with decades of hands-on experience and deep clinical knowledge, he ensures every patient receives accurate, comfortable, and long-lasting results. His attention to detail and commitment to excellence are evident in every smile he restores. What truly defines Dr. Ghiassi’s approach is his passion for his craft and his patients. He treats everyone — from his own family and daughters to neighbors and lifelong local patients — with the same level of care and dedication. Outside the office, he enjoys spending time with his wife and four children.