Orthodontists, Endodontists & Oral Surgeons | Barrie Dentists | Georgian Mall Dental Specialists
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The Georgian Mall
Dental Group Team

Meet the Dental Specialists
  • Dr. Heliya Ziai

    Dr. Heliya Ziai
    DMD, MS, Cert. Ortho. FRCD(C)

    Orthodontist In Barrie

    Dr. Heliya Ziai attended McMaster University for her undergraduate studies where she graduated Cum Laude from the Bachelor of Health Sciences Program. After her time in Hamilton, she returned home to Toronto to pursue a role as a research technician at the University of Toronto’s Faculty of Dentistry where she helped author numerous published scientific journal articles. Through her research on the effects of oral microbiota on dental materials, her desire to become a dentist was further confirmed. She obtained her doctorate degree from the University of Pennsylvania School of Dental Medicine where she graduated at the top of her class and was inducted into the Omicron Kappa Upsilon National Dental Honour Society. She went on to earn her Certificate in Orthodontics and Dentofacial Orthopedics from New York University College of Dentistry. Dr. Heliya is passionate about orthodontics and is dedicated to using the latest, most effective technologies and techniques for her patients.

    My ultimate desire is to help my clients gain a beautiful smile that will last a lifetime.

    Dr. Heliya Ziai strives to immerse herself in the community in which she lives and works. Outside of the office, you can find Dr. Heliya Ziai exercising, trying out new restaurants, and spending time outdoors whenever possible. Dr. Heliya’s greatest joy is seeing her patients’ confidence grow as their smiles do.

  • Dr. Behnam Bohluli

    Dr. Behnam Bohluli
    DMD, FRCS(ca), Dip ABOMS, ABOFCS

    Oral & Maxillofacial Surgeon in Barrie

    Dr. Bohluli is commonly considered a leader in Oral and Maxillofacial Surgery. He has practiced across full scope of Oral and Maxillofacial Surgery since his graduation. He has performed more than 4,000 major and several thousand minor oral surgery cases over his 17-year career. Dr. Bohluli is especially interested in treating failed surgical cases, as he believes a successful revision procedure can be indispensable in achieving the patient’s goals. In addition to his busy clinical practice, he is actively involved in academia and scientific research. Dr. Bohluli has frequently lectured in international meetings, and his scientific efforts have led to 45 publications in major surgical journals and 25 book chapters commonly referenced in this field. Dr. Bohluli has had the opportunity to teach at the University of Toronto over the past years. This has allowed him to become accustomed to North American perspectives regarding surgical concepts. Moreover, he has the honour of being certified by three prestigious North American boards: The Canadian Board of Oral and Maxillofacial Surgery, The American Board of Oral and Maxillofacial Surgery, and The American Board of Facial Cosmetic Surgery

  • Dr. Geoffrey Duviner

    Dr. Geoffrey Duviner
    Hon. BSc. DDS, MHA, Dip., OMFS, FRCD(C)

    Oral Surgeon in Barrie

    Dr. Duviner obtained his Honours Bachelor of Science from the
    University of Toronto in 2002, graduating with distinction. He then earned his Masters in Health Administration from the University of Ottawa in 2005. Following this, he completed his dental education, receiving his Doctor of Dental Surgery, Magna Cum Laude, from the University of Buffalo in 2009.

    “I’m committed to offering every patient customized care with kindness, integrity and uncompromising attention to detail.”

    In June 2013, he completed a 4 year residency in Oral and Maxillofacial Surgery at Montefiore Medical Center/Albert Einstein College of Medicine in Bronx, New York. Montefiore is the largest Oral and Maxillofacial Surgery training program in the United States. His surgical training at Montefiore has prepared him to perform the full scope of Oral and Maxillofacial Surgery.

    Dr. Duviner is licensed as a specialist in Oral & Maxillofacial Surgery by the Royal College of Dental Surgeons of Ontario and is a Fellow of the Royal College of Dentists of Canada. In addition to private practice, Dr. Duviner is a Clinical Instructor in the Department of Oral and Maxillofacial Surgery at the Faculty of Dentistry, University of Toronto, and is on staff at North York General Hospital. Dr. Duviner is also an active member of several professional organizations. In his spare time, Dr. Duviner enjoys exercise and traveling.

  • Dr. Ryan Margel

    Dr. Ryan Margel
    DMD, MS, FRCD(C)

    Endodontist in Barrie

    Dr. Ryan Margel is Georgian Mall Dental Group’s in-house Endodontist, offering specialized treatment in root canal therapy. Originally from Toronto, Dr. Margel graduated with distinction from York University with a major in Mathematics. In 2009, Dr. Margel obtained his dental degree from The University of Pennsylvania. Upon graduation, he worked as a general dentist for two years before em- barking on specialized studies at Marquette University in Endodontics. Dr. Margel’s masters thesis investigated the anatomical complexities of molar root canals.

    “My goal is to provide excellent, personalized care to each patient with heart-felt honesty and compassion.”

    Dr. Margel is a Fellow of the Royal College of Dentists of Canada. In his spare time, he enjoys relaxing with his wife and two daughters, and participates in a variety of sports, exercise and traveling.

  • Dr. Adam Ohayon

    Dr. Adam Ohayon
    HBSc, DDS, FRCD(C)

    Periodontist in Barrie

    Dr. Adam Ohayon was born and raised in the GTA, and received his Bachelor of Science with Honours at York University, majoring in Psychology. Upon graduating, Dr. Ohayon decided to pursue a career in Dentistry and was awarded his Doctor of Dental Surgery from the University of Toronto, where he graduated as Class President. Being an advocate of continuing education and advancing his skills, Dr. Ohayon completed a General Practice Residency at Newark Beth Israel Hospital in Newark, NJ, where he was inspired to proceed with his Master of Science and Speciality in the field of Periodontology and Implant Dentistry at the University of Toronto. With his extensive training and experience, Dr. Ohayon has a particular interest in implant dentistry and the management of gum disease and recession. Emergency Dentistry is another one of Dr. Ohayon’s major areas of practice. 

    “I believe every patient deserves to be treated as a unique individual with specific needs and desires.”

    In his spare time, Dr. Ohayon has authored books, is very involved in his community and was awarded the Gordon Cressy Student Leadership Award in recognition of his efforts. Dr. Ohayon enjoys spending his spare time with his wife and four boys, who inspire him to do more every day to help people.

  • Dr. Mohammed Taheri

    Dr. Mohammed Taheri
    DMD, FRCD(C) Prosth.

    Prosthodontist in Barrie

    Dr. Mo Taheri has studied extensively in Toronto and Boston. Dr. Taheri achieved a B.S. in Human Biology at the University of Toronto in 2001, then received his DMD at Tufts University in Boston in 2005 and then spent a year in a General Practice Residency in Newark, NJ. After practicing for 2 years, Dr. Taheri decided to return to Tufts to pursue his specialty training in Prosthodontics. He became board certified by the American Board of Prosthodontics in 2011. Dr. Taheri moved back to the Toronto area in 2015 and achieved fellowship with the Royal College of Dentists of Canada in 2016.

    I take great pride in creating beautiful smiles. My goal is to provide the highest quality dental care and help my patients achieve their goals, both esthetically and functionally.

    Dr. Taheri is a fellow of the Greater New York Academy of Prostho- dontics, a fellow of the American College of Prosthodontics and a fellow of the Royal College of Dentists of Canada. Recently, Dr. Taheri has been invited to become an examiner for the Royal Col- lege of Dentists of Canada for the specialty of Prosthodontics. Dr. Taheri has lectured nationally on topics including treatment plan- ning, occlusion, esthetic and implant dentistry. He has been invited to participate in dental podcasts as well as contributing to the edu- cation of general dentists.

  • Dr. Grant Lu

    Dr. Grant Lu
    MD, CCFP, FRCP(C)

    Anaesthesiologist in Barrie

    Dr. Lu is one of the first Medical Anaesthesiologist to partner with the dental community to provide in-office Sleep Dentistry for Children.

    Dr. Lu graduated from the University of Western Ontario with his Doctor of Medicine in 1992. He then completed his residency in family medicine and is certified by the College of Family Physicians of Canada. Dr. Lu obtained further training in anesthesiology and practiced emergency medicine and anesthesia in a rural setting for four years. He then obtained his Specialty Fellowship in Anesthesiology (FRCPC) from the University of Toronto.

    “My goal is to provide comfortable safe and effective sedation dentistry treatments.”

    He is currently on staff at the Scarborough Hospital where he provides anesthesia services for pediatric, obstetric and adult patients. As an expert in his field Dr. Lu is also a courtesy staff member at Humber River Regional Hospital, St. Joseph’s Hospital, Lakeridge Health, and the Ross Memorial Hospital in Lindsay.

  • Dr. Nilava Ghatak

    Dr. Nilava Ghatak
    BSc, DDS, FRCD(C)

    Pediatric Dentist in Barrie

    Although Dr. Ghatak was born and raised in Toronto, he did spend 8 of his early years in India.  He obtained in BSc in Mathematics from York University.  After finishing dental school (at the University of Toronto), Dr. Ghatak did a residency (in Advanced Education in General Dentistry) at Temple Univeristy in Philadelphia.  Subsequently, he worked in Toronto for 4 years as a general practitioner before returning to school.  In 2014, Dr. Ghatak completed a pediatric dental residency at Boston University.  He has since practiced in the GTA as a pediatric dentist. Travelling, fitness and nutrition are various interests of Dr. Ghatak.  At home, he relaxes by watching various online content regarding technology, travel and theoretical physics.

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