Meet Our Doctors
Dr. Barouir Deirmenjian
As a general dentist, Dr. Deirmenjian is devoted to providing quality, rewarding, and compassionate care to every patient that visits him. Serving as the founder and CEO of B. Deirmenjian and Affiliates, he serves patients at many multi-specialty facilities in California, including Los Angeles, San Gabriel Valley, Riverside and San Bernardino counties and has just added three new locations in the San Diego area.
With nineteen locations in California, B. Deirmenjian and Affiliates serve patients of all ages, from all backgrounds, and from every walk of life. The team of specialists, general dentists, assistants, and benefit coordinators offer a number of services, including: cosmetic dentistry, dental implants, endodontics, family dentistry, oral surgery, orthodontics, pediatric dentistry, and periodontics. They are dedicated to making dental care rewarding, so that individuals have a reason to share their smile.
Before entering private practice, Dr. Deirmenjian served as Dental Director at Guards Dental, where he demonstrated strong leadership skills in operating over 40 locations. Subsequently, he established his own family dental private practices, Smiles West, Desert Dental Group, and Ponderosa Dental Group.
To prepare for his career, he completed his undergraduate studies at the University of California at Irvine, where he earned his Bachelor of Science degree in 1988. Furthering his studies, he went on to obtain his Doctor of Dental Surgery degree from the University of the Pacific Arthur A. Dugoni School of Dentistry in 1999.
Remaining abreast of the latest dental developments, Dr. Deirmenjian is an active member of the American Dental Association and the California Dental Association. He is also a peer-review member at MetLife Insurance and Liberty Dental, sits on the advisory committee of Henry Schein Dental, is a UCLA adjunct professor, and is board-certified by the Dental Board of California.
Revered for his extensive 30+ year leadership background, Dr. Deirmenjian has been voted #100 on the Inc.5000 Series list of the Fastest-Growing Companies in California and #1528 of the Inc. 5000 Fastest-Growing Companies nationally. He was also named one of LA Business of the Year, Best Office by Insurance Companies, and one of the Emerging Dental Groups to Watch 2020 by Group Dentistry Now.
Dentistry, also known as Dental and Oral Medicine, is a branch of medicine that consists of the study, diagnosis, prevention, and treatment of diseases, disorders, and conditions of the oral cavity. Dentists diagnose and treat dental issues and help patients develop better oral hygiene regimens. They clean teeth, correct bite issues, perform surgeries and extractions, and perform other duties to ensure that the teeth and mouth are healthy.
An active member of his community, Dr. Deirmenjian truly enjoys helping the less fortunate and volunteering when he can with food drives and community outreach initiatives. Previously, he has participated in pro bono work for human trafficking victims in the Los Angeles area. He was also involved in a health fair head-start program, senior citizens program, and maintained an affiliation with Veteran Affairs.
In his spare time, he enjoys the outdoors. He is fluent in English, Armenian, Spanish, and French.
Dr. Thomas Tokuza
Dr. Thomas Tokuza, DDS, attended the University of California, Los Angeles and the Ostrow School of Dentistry at the University of Southern California. A member of the San Gabriel Valley Dental Society, he enjoys helping patients achieve their dental goals and teaching them how to maintain their oral health.
Outside of the office, he enjoys basketball, drawing, exercise and reading.
Dr. Mohamed Hammam
Dr. Mohamed Hammam attended the Alexandria Dental School at New York University. Practicing dentistry in this community brings him a great deal of satisfaction, and he feels blessed to have the knowledge and the experience to educate his patients and to be an advocate for their oral health.
Outside of the office, Dr. Hammam enjoys yoga, karate and volleyball.
Dr. Jaime Gochez
Bio coming soon.
Dr. Narbeh Gharakhanian
Dr. Narbeh Gharakhanian, DDS, MD, attended the University of Texas Southwestern College of Medicine in Dallas (MD), the University of Southern California School of Dentistry (DDS), the University of California Los Angeles, Microbiology/Molecular Genetics (BS) and completed his residency at the University of Texas Southwestern/Parkland Memorial. He is always interested in learning and is committed to taking the best care of his patients using his training, education, instincts and experience. Dr. Gharakhanian is a member of the American Dental Society of Anesthesiology, the California Dental Society of Anesthesiology, the American Board of Oral and Maxillofacial Surgery, the American Association of Oral and Maxillofacial Surgeons and the California Association of Oral and Maxillofacial Surgeons.
Outside of the office, he enjoys golf, fishing, hiking and sports.
Dr. Michael Vongphoe
Dr. Michael Vongphoe, DDS attended the University of Southern California. As his patient, he will do his best to treat you like family. This includes a transparent and thorough assessment of your dental issues, a clear discussion of your options and most importantly, a quick and pain-free experience. Dr. Vongphoe is a member of the ADA, CDA and the AAE (American Association of Endodontists).
Outside of the office, he enjoys traveling and spending time with his family.
Dr. Kevin S. Lee
Dr. Kevin S. Lee, DDS, MS, attended Stanford University and earned a BA in human biology. He soon after went to the UCLA School of Dentistry. He then completed his residency at the UCLA section of orthodontics (orthodontics certificate), earned his Master’s at the UCLA School of Dentistry (MS in Oral Biology) and his American Board of Orthodontics Certification. During his dental education, Dr. Lee became fascinated by human craniofacial development and decided to pursue orthodontics, which is the clinical specialty closely related to growth and development of the head. He is a member of the American Board of Orthodontics, the American Association of Orthodontists, the Pacific Coast Society of Orthodontists, the International Association for Dental Research, the American Association for Dental Research and the American Dental Association.
Outside of the office, Dr. Lee enjoys playing and watching soccer (he is an avid FC Barcelona fan), soaking up the California sunshine, traveling and driving sports cars (he is a Porsche fanatic).
Dr. Nareg Alexandrian
Bio coming soon.
Dr. Alan Nguyen
Originally born and raised in Orange County, Dr. Alan Nguyen is a triple Bruin, receiving his undergraduate, dental, and orthodontic training at UCLA. In addition to being a member of the American Association of Orthodontics (AAO) and the California Dental Association (CDA), Dr. Nguyen is a board-certified diplomate of the American Board of Orthodontics (ABO).
Dr. Nguyen currently practices at the West Covina location. He is passionate about improving smiles and making the experience fun.
In his free time, he enjoys woodworking, fishing, and golfing.
