Meet Our Team

Northern Horizon Dental aims to provide individuals with a comfortable and relaxing environment where we strive to exceed your expectations through professional results and our friendly staff.

Dr. Daniel Sullivan (HBSc, DDS)

Dr. Daniel Sullivan received his Doctor of Dental Surgery from the University of Western Ontario, and graduated with distinction. Before attending Western, he received his Bachelor of Science in Biology from Dalhousie University, 2 hours from where he grew up in New Brunswick. Dr. Sullivan takes pride in helping his patients achieve their aesthetic and functional needs, whatever they may be, and believes in a team-orientated approach that includes the patient’s wishes and input at the forefront. In his spare time, Daniel likes to golf, stay active at the gym, try new restaurants, and of course catch up on TV shows!

Dr. Dusa Sorichetti (BDS, MSc, MEng)

Dr. Sorichetti completed her Bachelor of Science in Biology degree at the University of Waterloo and then went on to complete two Master’s degrees (Master of Science followed by Master of Biomedical Engineering, University of Western Ontario). Dr. Sorichetti’s research findings of how salivary proteins can be used to predict and control oral diseases resulted in multiple first author publications in top dental journals. Dr. Sorichetti was given the opportunity to study dentistry in Australia at James Cook University. She enjoyed the sunshine as she completed clinical rotations at three different dental clinics across Queensland. Dr. Sorichetti’s personal dental philosophy is built entirely around a patient-centred approach, where she considers patients’ best interests and designs patient-specific dental treatment for patients of all ages. In her spare time, Dr. Sorichetti enjoys travelling with her husband and spending time with her family.

Shannann F. (Office Manager)

Shannann graduated from the Medical Administration program at Fleming College. Shannann has over 10 years experience in the dental field as a receptionist, treatment coordinator, dental technician and office manager. 
Shannann takes pride in making every visit at our office a great one. 
In her spare time Shannann loves reading, travelling and spending time with her husband, daughter, family and friends. 

Jennifer Kokko (Dental Assistant)

Jennifer graduated from Georgian College in 2015 as a certified dental assistant. In her spare time she enjoys spending time with her 2 children, family and friends.

Melissa Bly (Dental Hygienist)

Melissa graduated in 2002 with honours from the Durham College Dental Hygiene program. She is a member of the College of Dental Hygienists of Ontario (CDHO), the Canadian Dental Hygiene Association (CDHA), and the Ontario Dental Hygienists Association (ODHA). Melissa enjoys working most with children and those that are fearful of dental treatment, helping them to have a positive, comfortable experience. She continues to take courses to learn the most current dental procedures to provide patients with the highest level of care and maintain their optimal oral health. While not at work, Melissa enjoys time with her husband and two kids, playing hockey, and working with various charities to raise funds for local groups.

Marjorie Giordanella (Dental Hygienist)

Marj graduated in 2007 from the dental hygiene program at Cambrian College. he has over 10 years of experience as a dental hygienist. Marj has a desire to promote a positive dental experience and brings with her a gentle yet thorough approach to helping patients achieve their optimal oral health. She enjoys participating in continuing education courses to keep her knowledge and skills current, and to provide patients with the best care. Outside of work, she enjoys spending her time with her husband and their young children.

Chelsea Robillard (Dental Hygienist)

Photo & bio coming soon.

Jade Smetana (Dental Hygienist)

Photo & bio coming soon.



At Northern Horizon Dental, we’re here to make scheduling dental appointments in Barrie & Innisfil, ON simple, quick, and efficient.

Conveniently located on Yonge Street, so you can easily find your Barrie Dentist.



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Barrie Location
Northern Horizon Dental
632 Yonge Street
Barrie, ON L4N 4E7
Telephone: (705) 719-7645

Looking for our Innisfil location?
Click Here.

(705) 719-7645