Get to Know Our Dentists

Photo of Barsoum Dental doctors

Maher Barsoum, DDS

Family & Cosmetic Dentist

Serving Chino Hills, greater Chino and Upland, Dr. Maher Barsoum has been in practice for over 40 years. He prides himself on being able to give personal attention to each of his guests which shows clearly in the Reviews he gets from them. Dr. Barsoum has been awarded a certificate of excellence at the Las Vegas Institute for Cosmetic Dentistry on February 2004 in recognition of academic and clinical expertise in the field of Advanced Functional Aesthetics and for dedication to providing the highest level of dentistry.


Dr. Barsoum is a member of four local study Clubs where he presents cases from time to time. He also is a member of three Internet Dental Forums and receives more then 300 e-mails per day discussing various topics in Dentistry.


Although the license renewal for Dentists in California requires only 50 hours of continuing dental education per year, Dr. Barsoum completes more than 200 hours. He is also a member of the ADA, AGD, CDA , Tricounty Dental Society and the Dental Organization for Conscious sedation (DOCS).


Besides English Dr. Barsoum speaks French and Arabic fluently. Serving Chino Hills, greater Chino and Upland, Dr. Maher Barsoum has been in practice for over 40 years. He prides himself on being able to give personal attention to each of his guests which shows clearly in the Reviews he gets from them. Dr. Barsoum has been awarded a certificate of excellence at the Las Vegas Institute for Cosmetic Dentistry on February 2004 in recognition of academic and clinical expertise in the field of Advanced Functional Aesthetics and for dedication to providing the highest level of dentistry.


Photo of Dr. Maher Barsoum and family in front of dental office

Dr. Krystal Benyamein, DDS

After graduating high school at the young age of 14, Dr. Benyamein obtained her Bachelors from the University of Southern California, with a major in Biology and minor in Sculpting. She obtained her DDS from Howard University College of Dentistry, where she was recognized for academic and clinical excellence through induction into the prestigious Omicron Kappa Upsilon Honor Society.


Following dental school, she completed a General Practice Residency at USC LA County Hospital and the Temple VA Hospital.


Dr. Benyamein loves her profession and her number one priority is to ensure her guests are as comfortable as possible. She takes pride in providing quality ethical care, while treating each guest as though they were part of her family.


Dr. Farimah Goshtasbi, DDS

Dr. Farimah Goshtasbi received her Bachelor of Science in Mechanical engineering; but after working as an engineer for some time, she decided that her true passion was healthcare and helping people and then continued on to pursue a career in dentistry. She received her DDS degree from University of the Pacific, School of Dentistry in San Francisco, CA.  She is committed to providing her guests with the highest level of personalized care and exceeding their expectations. She is devoted to her profession and remains up to date in innovative techniques and materials through advanced education and training.


In her free time, Dr. Farimah enjoys painting, yoga, watching movies, and spending time her husband and little daughter.


Dr. Sandy Wissa, DDS

Dr. Wissa obtained her BDS from the Misr International University Faculty of Oral and Dental Medicine and her DDS from the New York University College of Dentistry and has been practicing dentistry since 2009. She took a break from dentistry in 2011 to go on a 6 months outreach program with YWAM to Australia, Papua New Guinea and the Philippines where she got to learn more about God and how to serve people in all aspects of life, including dentistry.


She enjoys spending time with her family and traveling with her husband. In her spare time she loves going to Disneyland, baking, watching shows and camping.


Dr. Karim Barsoum, DDS

Growing up in a family of dentists and being the third generation, I have always been amazed by the way my grandfather and father (Dr. Maher Barsoum) were helping people to get out of pain. I have been lucky enough to learn from them first-hand the importance of prioritizing guest comfort and satisfaction and work hard to incorporate these values into my practice each and every day. I went to Brea Olinda High school, followed by majoring in Biomedical Sciences at La Sierra University in Riverside. I completed my dental education at Loma Linda University School of Dentistry. Some of my hobbies include spending time with my family, traveling to discover new cultures and biking long distances. I recently completed a 100-mile bike ride in the Tour De Palm Springs event. I attained Eagle rank in Boy Scouts, which is the highest rank one can achieve. 


Dr. Andy Tawfik, DDS

Dr. Andy Tawfik obtained his BDS from ASU in 2006 followed by MSc and PhD. He practiced dentistry for 12 years before he decided to obtain a DMD from WesternU. He was recognized for academic and clinical excellence through induction into the prestigious Omicron Kappa Upsilon Honor Society and received the Dean’s award in recognition of exemplary leadership and professionalism. 


Dr. Tawfik is committed to providing his patients with high quality treatment and care in comfort and compassion. He spends the time to listen to his patients' concerns and presents multiple options and treatment plans to combine aesthetics and function. He is experienced in minimally invasive dentistry, cosmetic make-over and porcelain veneers. He is also a member of ADA, CDA, IAA, AGD and Tri-County Dental Society.


Dr. Tawfik enjoys traveling with his wife. They’ve visited over 17 countries, with his favorite country being Croatia. He is also passionate about photography to capture precious moments and the beauty of nature.


Dr. Michael Le, DDS

Dr. Le grew up in Southern California. He graduated with a Bachelor of Science in Neuroscience from UCLA. Dr. Le enjoyed his experience in Westwood so much that he decided to stay at UCLA to earn his Doctorate in Dental Surgery in 2002.


Dr. Le understands that in treating the disease of the teeth and maintaining the health of the mouth he also needs to ensure the comfort of the individual receiving treatment.


In addition to dentistry, Dr Le values his time with his family and enjoys running, swimming, and road cycling. He is a member of the American Dental Association, the California Dental Association, and the Orange County Dental Society.


Photo of Barsoum Dental doctors staff

Our Doctors

Our talented dentists do everything possible to ensure that you are relaxed and pain-free during your time with us.

Our Staff

Each member of the staff is committed to making our clients comfortable while delivering the best possible care.

Our Specialists

Our specialists are experts in their fields, and many of them have decades of experience in their chosen areas.