Our Team

At Dr. Zak Family Dentistry, we assembled well-trained and highly credentialed dentists, assistants, and office staff to ensure you always get personalized, superior dental services within a budget that you can afford.

The Dr. Zak Dental 360 Degree quality Control Method

We don’t just talk the talk…we walk the walk when it comes to Quality Assurance!!!

  1. Our on-staff Wellness Doctor is there to understand your unique oral health needs, objectives, and budget. Once our Wellness Doctor understands your needs, he creates a customized treatment plan that is unique to you. Based on the treatments needed, he will build a clinical team consisting of a hygienist, treating dentist, and possible specialists to execute the agreed upon family dental plans.
  2. There is always more than one provider working on your treatment plan to confirm the accuracy of your diagnosis.
  3. At Dr. Zak Family Dentistry, we practice a team-based approach to dental care because dental care requires a vast array of skills and abilities. That is why each one of our offices has paired up with a team of specialists that include: periodontists, endodontists, prosthodontists, oral surgeons, and orthodontists to support our general team and step in for more complex procedures.
  4. Once your treatment plan has been completed we initiate our 360-degree quality control protocol, which is where your Wellness Doctor steps back in to check the quality of the completed work.

Dr. Zak Family Dentistry is serving the Simi Valley community since 1996

Our Dentists and Dental Staff

Dr. Ilya Zak, DDS our team Dr. Ilya Zak, DDS

Dr. Ilya Zak graduated from USC Dental School in 1990 as one of eight students who completed their undergraduate and graduate training through ADAPT, a six-year dental program.  Post-graduation, he was in a TMJ/ Pain Management residency at White Memorial Hospital.  He then became a qualified medical examiner for TMJ dysfunction in California. He also worked as a part-time clinical instructor at USC Dental School and brings the same method of quality control and accountability to our practices.  Dr. Zak works to ensure that all the dental care that rendered at Zak Dental is patient centric and enhances patients’ overall state of wellness.

Dr. Kopel, DDS, our teamDr. Howard Kopel, DDS

Dr. Howard Kopel, DDS, was educated at USC School of Dentistry and has over three decades of experience in the field.  He is well-trained in every dental field, and has received many awards for excellence in diagnosis of oral cancers.  An avid believer in the link between oral health and overall health, Dr. Kopel designs and delivers dental care that is truly patient centric and enhances patients’ wellbeing.

Dr Charles Chung, DDS our teamDr. Charles Chung, DDS

Dr. Charles Chung, DDS, attended Loma Linda University’s School of Dentistry and graduated in 1999. While there, he went on many volunteer missions in southern California and South America that involved dental work and inner-city volunteering. He worked at several other dental offices before becoming part of our team. He is a member of the American Dental Association and California Dental Association. His work is always precise and performed calmly, making him very popular with patients.

Our TeamDr. Violetta Kenigsberg, Periodontist

When Dr. Kenigsberg was just eight years old, she and her family immigrated to Los Angeles from Belarus. She attended UCLA before pursuing her Doctor of Dental Surgery degree at Columbia University College of Dental Medicine.  She then continued her Advanced Education in Periodontics at the NYU College of Dentistry. Her favorite part of her new position is getting to work with such an amazing team as she addresses the periodontal needs of the community!  Outside of work, her daughters are her biggest interest. She also enjoys going to the theater and running.

Our TeamDr. Nima Aleagha, DDS

Dr. Nima Aleagha brings over 25 years of experience to the practice and has provided treatment plans for thousands of patients over the years. Graduating from the Tehran University of Medical Sciences in 1994, he provides quality dental examinations for his patients, caring for adults and children in the practice.  Dr. Nima is fluent in Farsi as well as English.

Our TeamDr. Gabreal Shamtoub, Endodontist

Dr. Gabreal Shamtoub earned his DDS from New York University. He then moved to California to continue his specialty education in Endodontics at the University of California, Los Angeles School of Dentistry. Dr. Shamtoub has dedicated his life's work to specialized tooth nerve treatment, like complex root canals. Dr. Shamtoub's specialized training allows him to relieve his patients' from some of life's greatest pains. It brings him great joy to know that all of his patients' leave the office better off than when they first entered through the door.

Dr. Taoheed Johnson, Endodontist

Dr. Taoheed "Jide" Johnson earned his DMD degree from Tufts University School of Dental Medicine in Boston, MA in 2011. He then moved to California to receive his specialty certification in Endodontics from USC (University of Southern California) in 2016. Dr. Johnson speaks English, Spanish and Yoruba.