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Ilya Zak D.D.S Dr. Ilya Zak graduated from USC Dental School in 1990. He was one of eight students to complete both his undergraduate and graduate requirements from the ADAPT program (an accelerated 6 year dental program). After graduating school, he completed a TMJ/ Pain Management residency at White Memorial Hospital and was a qualified medical examiner for TMJ dysfunction in the state of California. He is currently a part-time clinical instructor at USC dental school. Together with his father he practices fulltime in Simi Valley, Valencia, Agoura Hills, and Goleta. He was named "Top Dentist" in 2006.


Dr. Zak's Rating
Patient Perspective
2.0 Explains conditions and treatments
2.0 Takes time to answer my questions
2.0 Provides follow-up as needed
Office Rating
Showing ratings for:
3355 Cochran St Ste 206, Simi Valley, CA, 93063
n/a Average office wait time
2.0 Office cleanliness
2.0 Courteous staff
2.0 Scheduling flexibility
Dr Zak Family Dentistry And Orthodontics
3355 Cochran St Ste 206
Simi Valley, CA, 93063
Showing 1-3 of 3 reviews
"Sub Standard assembly line Dentistry. Every patient with good Insurance gets 4 quads of deep scaling whether needed or not. They try to up sale every patient. Dr. Zak is verbally abusive to his Dental Assistants. I do not recommend Dr. Zak Dentistry. "
  • October 16, 2022
"I have been dealing with a sore jaw, 2 infections and inability to eat on my right side since February when this chop shop was supposed to do a simple crown! 2 different dentist, 3 different specialist and they still couldn't get it right! All I want is my money back to go to another dentist that is NOT a production line and can actually solve all the problems I now have. They refuse to reimburse me They have the audacity to demand I go back in! Why would I go back? For another cut in my mouth? Another infection? More pain? Prolonging the inconvenience? They shaved it down so much that crown is no longer good! The crown is only in place with temporary glue and I haven't been able to eat on that side! They also say that you signed the forms, so it doesn't matter! They lost my trust! They are not honest people and don't genuinely care for the patients! Just an assembly line and a quick dollar to them! Give me my money back"
  • September 28, 2021
"Horrendous experience and Dr. Zak has a malicious dental scam happening throughout Southern California. "
  • December 24, 2020


3355 Cochran St Ste 206
Simi Valley, CA, 93063
10501 Lakewood Blvd Ste A
Downey, CA, 90241
26324 Bouquet Canyon Rd
Santa Clarita, CA, 91350
4537 Alamo St Ste A
Simi Valley, CA, 93063
23838 Valencia Blvd Ste 150
Valencia, CA, 91355



This dentist accepts the following plans. This may include dental insurance as well as dental savings plans, an affordable alternative to dental insurance. With a dental savings plan, members can save 10-60% at the dentist. Click here to learn more.


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