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 Dental & Orthodontics, 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. Jorge Flores
Dr. Jorge Flores, our talented general dentist, was born and raised in Guatemala. He obtained his dental degree from the University of San Carlos in Guatemala. Since beginning his dental journey, Dr. Flores has shown a commitment to expanding his knowledge and skill set. He has attended a series of prestigious continuing education courses, including Bicon implants in Boston, sedation techniques at UCLA, and MIS Implants in Los Angeles. Furthermore, he proudly affiliates himself with the Academy of General Dentistry (AGD).
Having joined our practice in 2017, Dr. Flores frequently expresses his passion for the dental field, particularly enjoying the challenges that each unique case presents. He finds great fulfillment in offering top-notch dental care, ensuring a seamless patient experience, and cherishes the camaraderie he shares with our team.
Away from the office, Dr. Flores is an enthusiast of the great outdoors. Whether it’s swimming, biking, or engaging in other outdoor adventures, he’s always up for an active escape. He’s also an avid baseball watcher. At home, he is a loving father to two daughters: one of whom has graduated from college in Northridge, while the other is pursuing her PhD in biotechnology. Not to forget, he is also the proud pet parent of two dogs, Hugo and Butterball.
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. Duy Nguyen
Born and raised in Vietnam, Dr. Duy Nguyen came to the US when he was 18 years old. He earned his BSEE from the University of Washington in 1991, followed by a DDS from UCLA in 1999. Furthering his knowledge and professional skills, Dr. Duy has also undergone extensive training in oral surgery and dental implants.
Dr. Duy’s passion for dentistry includes making dental visits as comfortable as possible for each patient as he realizes that most patients may not necessarily enjoy going to the dentist. He thoroughly enjoys interacting with dental patients, truly listening to them, addressing dental problems, and creating trust.
Dr. Duy is the proud father of two. One has graduated from UC Berkeley with a business major and the second is in high school and is a strong swimmer. He also has a dog named Bingo. Outside of the office, he enjoys spending time with family and socializing with friends.
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. Sarine Wajih Tchiroyan
Dr. Sarine Tchiroyan joined our practice in 2021. Born and raised in Lebanon, she attended St. Joseph University of Beirut, earning her Doctor of Dental Surgery degree. She has continued education through endodontics conferences, implant courses, and esthetic courses. She is part of the American Dental Association.
Dr. Sarine enjoys helping patients feel comfortable during each visit. She loves interacting with patients and getting to know them individually. She also loves finding solutions to the challenges with each patient’s case. She finds joy in helping people and easing any dental pain they may have.
Outside of the office, Dr. Sarine enjoys pilates, yoga, outdoor activities, and traveling. She also enjoys spending time with her two daughters and son.
Dr. Sophia Cadet
Dr. Sophia Cadet, originally from Haiti, earned her dental degree from Haiti Dental School and joined Desert Dental Group in 2024. She is passionate about helping patients feel at ease and building trust through personalized care.
Dr. Cadet enjoys hiking, camping, and exploring the outdoors.
Dr. Mohamed El-laham
Dr. Mohamed El-laham is a dedicated and compassionate dentist who joined the practice in 2025. He earned his doctor of dental surgery degree (DDS) from IUPUI School of Dentistry in 2016 and holds a Bachelor of Science from the University of Western Ontario, class of 2005. A proud member of both the California Dental Association (CDA) and the American Dental Association (ADA), Dr. El-laham is committed to delivering comprehensive care with a personal touch. He finds great joy in guiding patients through their dental journey—from the initial consultation to the final result—and believes in transforming lives one smile at a time.
Originally born in Saudi Arabia and raised in Canada, Dr. El-laham brings a global perspective and a warm, approachable style to patient care. He values getting to know each patient and learning how dentistry can help improve their overall well-being. Known for his professionalism and friendly nature, he thrives in the practice’s team-focused, high-performing environment. Outside the office, Dr. El-laham enjoys cooking, walking, and exploring new places with his family, including his young son.
Dr. Aaron Park
Dr. Aaron Park is a general dentist who focuses exclusively on endodontic care, including root canal therapy. Known for his precision and gentle approach, he is committed to relieving pain and preserving natural teeth. Born in Seoul and raised in the U.S., Dr. Park earned his DDS from Loma Linda University School of Dentistry. He values being part of a collaborative, patient-focused team and finds joy in making dental care a comfortable experience. Outside of work, he enjoys traveling, trying new food spots, and spending time with his wife and their dog.
