Our Team

Dr. Zak Dental Care has been serving the community of Southern California since 1994.

Here at Dr. Zak Dental Care, we are dedicated to continuously improving and attaining the most efficient and up-to-date technology and techniques for our dental work, and we continue to team up with the most qualified professionals. We believe that it is our task to educate our patients and our community as a whole about proper oral health and effective ways of financing this goal. We continue to provide our patients with effective, all-encompassing, and affordable dental care.

Meet our Team

Our staff is extremely well-trained and skillful, and we are committed to providing enthusiastic and positive service to all our patients. All our team members are registered assistants, and the staff has had many years of experience in providing patients with superior care.

Dr_Ilya_ZakDr. Ilya Zak, D.D.S.

Dr. Ilya Zak attended USC Dental School, graduating in 1990. He was one of only eight unique students to complete the ADAPT program, an accelerated 6-year dental program that allows one to complete both undergraduate and graduate requirements. After graduation, he completed TMJ/Pain Management residency at White Memorial Hospital and became a qualified medical examiner for TMJ dysfunction in California. He was also a part-time clinical instructor at his alma mater, USC Dental School, and he practices in Simi Valley, Valencia, Agoura Hills, and Long Beach since 1994.

Dr. Howard Kopel, D.D.S.

Dr. Howard Kopel, DDS, attended USC School of Dentistry and has been working in the field for more than 3 decades. He has received excellent training in every dental field, and he has received numerous awards for excellence in oral cancer diagnosis. The Zak Dental Team is honored to have worked with Dr. Kopel for over a decade, and he is in charge of dental diagnosis as a managing doctor in our practice.

Dr. Olga Karnakova, D.D.S.

Dr. Karnakova graduated from the Moscow Medical Stomatological Institute in 1991. Dr. Karnakova worked for many years in Moscow before moving to the United States where she has worked for over 18 years as a general Dentist and part time instructor for the Duggan Study Institute.
Dr. Olga Karnakova is fluent in English and Russian languages.

Dr. Gabreal Shamtoub, Endodontist

Dr. Gabreal Shamtoub received his dental degree from NYU College of Dentistry.  He then completed a General Practice Residency at Lincoln Medical Center treating patients who required complex dental treatment, which included dental trauma and full mouth rehabilitation. Dr Shamtoub’s desire to help people save their natural teeth and smile led him to choose Endodontics as a specialty. Dr Shamtoub completed his specialty training in Endodontics from USC School of Dentistry in pursuit of providing high quality root canal treatments to restore his patients’ oral health, function, and smile.

Dr. Kristen Miller, Orthodontist 

Dr. Kristen Miller is graduated from UCLA with general dental education and UCSF with her orthodontist training. She graduated the class as top 5% students. We was also the Vice President of her dental school class. Dr. Miller participated in the UCSF mobile clinic. She is fluent in Spanish. Dr. Kristen Miller worked for Downey Orthodontics for over 10 years.

Dr. Anthony Montella, Prosthodontist 

Dr. Anthony Montella is an ADA Certified Prosthodontist specializing in restorative, cosmetic and implant dentistry.

From Eastern Illinois University, he received his Bachelor of Science degree in Zoology in 1994. Immediately following college, Dr. Montella entered dental school and graduated in the top of his class from the University of Illinois College of Dentistry at Chicago in 1998. After dental school, he continued his training and completed a three-year advanced prosthodontics residency program at University of Illinois College of Dentistry where he received his certification in Prosthodontics in 2001.

As a prosthodontist, Dr. Montella specializes in the following dental procedures: Cosmetic Dentistry – Porcelain Veneers, Fixed Prosthodontics – Crowns and Bridges, Implant Prosthodontics – Fixed and Removable Restorations, and Removable Prosthodontics – Complete and Partial Dentures.