About Downtown Dental Associates
Downtown Dental Associates has been part of the Toronto community for more than 25 years. Our clinic was built for people who live and work in the core — professionals, families, students, and long-term residents. With extended hours, direct access from Union Station and the PATH, and a wide range of services in one place, we make it easier to stay on top of your oral health without leaving downtown.
Our Approach
Patients are always part of the conversation. We listen first, then explain options clearly and guide you through next steps so you know what to expect. With general dentists, hygienists, and specialists working together in one clinic, your care stays coordinated and connected. Our practice accepts the Canadian Dental Care Plan and follows non-assignment insurance policies, so patients can plan their care with a clear understanding of coverage.
Meet Our Team
Our dental team combines training from respected programs in Canada, the United States, and abroad. Each dentist and staff member brings unique experience, but all share the same commitment: respectful, patient-centered care that emphasizes communication and comfort.
Dr. Kilislian
General Dentist and Endodontic Specialist
Dr. Kilislian received her Doctor of Dental Medicine degree from Tufts University in Boston in 1995 and completed specialist training in endodontics in 1997. She practiced in both Toronto’s financial district and Yorkville before establishing her own practice. She has served as past president of the Toronto Central Dental Society and is a member of the Canadian Dental Association, Ontario Dental Association, Ontario Society of Endodontists, American Association of Endodontists, Canadian Academy of Endodontists, and the Royal College of Dental Surgeons of Ontario. Her clinical interests include research on saving teeth that might otherwise be lost.
Dr. Yasaman Zadeh
General Dentist
Dr. Zadeh graduated with honours from the University of Toronto Faculty of Dentistry and has more than seven years of experience in preventive, restorative, and cosmetic care. She has advanced training in implant and cosmetic dentistry as well as sedation for anxious patients. She attends continuing education at programs including the Las Vegas Institute for Advanced Dental Studies. Her philosophy is that oral health is part of overall health, and she helps patients understand their options while supporting long-term dental wellness.
Dr. Payam Ouyarhossein
General Dentist
Dr. Ouyarhossein earned his first dental degree in Iran in 2005 with honours and went on to complete a Master of Science in Periodontology in 2008. He later became an assistant professor in the department of periodontology before relocating to Canada, where he completed a Doctor of Dental Surgery degree at the University of Toronto in 2017. His scope of care includes dental implants, extractions, and gum surgery. Known for his calm manner, he focuses on providing thorough treatment while keeping patients comfortable.
Dr. Evelyne Bourrouilh
General Dentist
Dr. Bourrouilh studied anatomy at McGill University before completing her dental degree. She trained in a hospital-based residency at the Royal Victoria Hospital in Montreal, with a focus on medically compromised patients. She has worked in St. John’s and Toronto and is a member of the Canadian Dental Association, Ontario Dental Association, and Royal College of Dental Surgeons of Ontario. Her practice emphasizes building one-on-one relationships and providing consistent care across all aspects of general dentistry.
Dr. Harry Singh
General Dentist and Endodontist
Dr. Singh grew up in Whitby, Ontario and studied chemistry at the University of Toronto before earning his dental degree at Case Western Reserve University in Cleveland. After completing a residency, he entered the Endodontic Specialty Program at Marquette University, graduating in 2000. He has practiced endodontics in the United States and established his own practice in Rochester, New York before returning to the Toronto area. He is a member of the American Dental Association, American Association of Endodontists, Canadian Dental Association, and Ontario Dental Association.
We direct bill insurance and offer affordable fees
Our Fees & Insurance Options
Our Office
At Downtown Dental Associates your comfort is key. The reception area offers a relaxed welcome and every treatment room is set up to support care that is both thorough and efficient. We understand the pace of downtown life, so we do our best to stay on time and offer appointments before work, at lunch, or after hours. Connected to the Hilton on Richmond and the underground PATH, the office is easy to reach by subway, GO Train, or on foot. For those who drive, paid parking is nearby.
Whether it is a checkup or more complex treatment, we focus on making visits consistent and convenient.
New Patients Welcome