• Diplomate, American Board Periodontology, since 2004
• Assistant Professor, USC, School of Dentistry, Advanced Periodontics
• Assistant Professor, Western University College of Dental Medicine; 2009 – 2015
• Spear Study Club Director, Chino Valley, CA
• International Team for Implantology (ITI) Chino, Study Club Director

Dr Mardirossian received his dental degree from The Royal London Hospital Medical College, University of London, England in 1991; and a Diploma in General Dental Practice from The Royal College Surgeons, in London, England in 1996. After 6 years in hospital based dentistry and family based general dental practice in London, he completed his Dental Specialty residency training in Periodontics & Implant Surgery at the University of Southern California in 2000. He further obtained his Master’s degree in Craniofacial Biology from the University of Southern California in 2000.

As a Diplomate of the American Board Periodontology since 2004; he maintains membership with the following professional organizations, as he continues to expand his periodontal knowledge and expertise: American Academy Periodontology, American Board of Periodontology, American Academy Osseointegration; Tri-County Dental Society, California Dental Association as well as American Dental Association.

Dr Mardirossian has publications in the Journal of Periodontal Research, 2000 and Journal of Clinical Periodontology, 2001. Recipient of the California Society Periodontology outstanding research award in 2000; he is part time faculty Assistant Professor at USC, Advanced Periodontology Department and previously at Western University, College Dental Medicine, 2009 – 2015

Dr Mardirossian and his enthused staff maintain a private practice limited to Periodontics and Implant Surgery in Chino valley, CA since 2000. He is also an active Director of Spear Inter-disciplinary Study Group in Chino, CA since 2018