Our Doctors / Dr. Tatosian
DDS, MS · Diplomate, American Board of Endodontics
Dr. Charles
Tatosian
Partner
- SpecialtyEndodontics
- BoardAmerican Board of Endodontics
- FacultyAdjunct Faculty, USC Herman Ostrow School of Dentistry
- In Practice Since1992 — Mission Viejo, CA
Background
Dr. Tatosian was born in St. Louis, Missouri. He earned a Bachelor of Science in Chemistry from the University of Missouri–St. Louis before pursuing dental school at the University of Missouri–Kansas City School of Dentistry, where he earned his DDS degree.
Following dental school, Dr. Tatosian completed a General Practice Residency at the VA Hospital in Kansas City, then spent five years in a combined role as general dentist and faculty member at Washington University in St. Louis — an experience that solidified his interest in teaching and specialty training.
Specialty Training
Dr. Tatosian pursued his endodontic specialty at the University of Texas Health Science Center in Houston, earning his MS degree alongside his specialty certificate. He has been in private endodontic practice in Mission Viejo since 1992, making him one of the longest-tenured specialist endodontists in the South Orange County region.
He holds an adjunct faculty appointment at the USC Herman Ostrow School of Dentistry and remains actively involved in continuing education and the profession through membership in multiple professional organizations.
Clinical Philosophy
With more than three decades of practice in the same community, Dr. Tatosian has built his reputation on consistency, precision, and a deep commitment to the referring doctors who trust him with their patients. He understands that endodontic care is a coordinated effort — and that how a specialist communicates with a referring office matters as much as technical skill.
He is a Diplomate of the American Board of Endodontics, reflecting his commitment to maintaining the highest standard of specialty practice throughout his career.
Professional Memberships
Dr. Tatosian is an active member of the American Association of Endodontists (AAE), American Dental Association (ADA), California Dental Association (CDA), Orange County Dental Society (OCDS), Southern California Academy of Endodontists, Southwest Society of Endodontists, and the California Society of Anesthesiology in Dentistry (CSAE).
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