Meet Our Doctors — Livonia, MI

  • Chet Regula, DMD

    Dr. Chet Regula founded our practice in 1987. He earned his DMD from the University of Pennsylvania & is also trained as an orthodontist. For the last 15 years he has been the only team dentist of the Detroit Lions. Outside of dentistry, he enjoys spending time with family, staying fit & fly-fishing.

  • Vimal Saigal, DDS

    Dr. Vimal Saigal earned his DDS from New York University. His focus is educating his patients on the body-mouth connection to their health. He has been voted one of Michigans’ top dentists by Hour Detroit Magazine. In his free time, he enjoys movies, music, tennis, playing saxophone & spending time with family & friends.

  • David Heys, DDS

    Dr. David Heys earned his DDS from the University of Michigan. He prioritizes building long-lasting relationships with patients so he can customize their dental care. Outside the office he enjoys spending time with his wife & children as well as traveling & playing golf.

  • Jason Zimmerman, DDS

    Born and raised in Royal Oak, Michigan. Dr. Zimmerman completed his undergraduate studies at Albion College, and continued on to the University of Detroit Dental School.

    Following graduation from dental school, Dr. Zimmerman had the opportunity to work as an associate for some of the area's top dentists, most recently for the official group dental practice affiliated with the Detroit Red Wings and Detroit Lions. These experiences helped shape his philosophical approach to caring for patients. Finding Dr. Regula's' standards and values as high as his own, Dr. Zimmerman joined the team.' My passion and accessibility to my patients are my greatest assets. I hope to help all my patients exceed their optimal dental health.'

    In his dwindling free time, Dr. Zimmerman is learning how to raise two daughters while trying to keep up as a Detroit sports fan.

  • Susannah Lyddon, DMD

    Dr. Susannah Lyddon was raised in Plymouth, Michigan with her Mom, Dad, and two younger sisters.

    Dr. Lyddon graduated from Michigan State University with a Bachelor of Science degree in Nutritional Science. She then moved to Boston, Massachusetts to attend Tufts University School of Dental Medicine, where she obtained her Doctorate of Dental Medicine. Following dental school, Dr. Lyddon completed a one-year General Practice Residency at St. Joseph Mercy Oakland Hospital in Pontiac, Michigan.

    Dr. Lyddon enjoys making meaningful connections with her patients and strives to help them achieve dental health through personalized, quality and compassionate care. Dr. Lyddon is passionate about being a lifelong learner and improving her knowledge through continuing education to benefit her patients.

    When she is not in the office, she enjoys spending time with friends and family, traveling, figure skating, and relaxing with a good book.

    Dr. Lyddon is a member of the American Dental Association, Michigan Dental Association and the Academy of General Dentistry.

  • Kosta Patsarikas, DDS

    Dr. Kosta Patsarikas attended Oakland University for undergrad and then attended the University of Michigan Dental School.  Outside of work, Kosta enjoys being active, playing golf, basketball, and soccer; he also enjoys spending time with his friends and family.

  • Joao Najar, DDS

    Dr. Joao Najar’s Bio Coming Soon.

  • Omar Masabni, Periodontist

    Bio coming soon.

  • Thomas Stein, Endodontist

    Bio coming soon.

Ready to Schedule Your Appointment?

At Preferred Dental Group, we have convenient hours that won’t make you miss work or school.

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Our Location

38000 Ann Arbor Trail, Livonia, MI 48150

Hours of Operation

Our convenient hours mean you never need to miss work or school.



8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


12:00 Pm-8:00 pm


7:00 am-3:00 pm


9:00 am-2:00 pm