Our Team

At every visit, our dental team strives to make you feel welcome and comfortable. Patient communication is a large part of our efforts. We believe that open and ongoing communication is the key to a lasting and successful relationship between doctor and patient.

Dr. Peter Yao

Dr. Yao was originally from Calgary where he received his Bachelor of Science Degree in Microbiology at the University of Calgary. He then went on to receive his Doctor of Medical Dentistry Degree from the University of Manitoba. Afterward receiving his commission in the military, he served with the Canadian military for 9 years, 5 of which was at the rank of Captain. He practiced dentistry at the military base in Toronto and has continued to practice dentistry in the Durham Region since October, 2001.

Dr. Yao is happily married and the proud father of son Braden and daughters Charlize and Dehati. In his free time he likes to spend time with his family, dancing, traveling and playing sports.

Dr. Betty Castillo

Dr. Betty Castillo was born and raised in Toronto and the GTA. She attended the University of Toronto for both undergraduate studies in Pharmacology and her dental degree which she completed in 1995. Betty takes pride in the quality of her work and makes every effort to work with her patients to fulfill their desires for their oral health. When she is not at work, Betty loves spending time with her husband and two daughters, cooking, reading and travelling.

Dr. Melissa Yeung

Dr. Melissa Yeung graduated from the University of Toronto with a specialist degree in Toxicology. Continuing her studies, she also received her Doctor of Dental Surgery Degree from the University of Toronto.

In her spare time, Dr. Yeung enjoys spending time with her family and friends, practicing yoga, watching movies, and trying different cuisines. She also enjoys swimming and taking martial arts classes.

Dr. John Nikolovski

Orthodontist

Dr. John Nikolovski was born and raised in Toronto and attended the University of Toronto for his undergrad education. Here he obtained a Bachelor of Science degree in Life Sciences with honours distinction. After obtaining numerous awards and scholarships, Dr. Nikolovski decided to pursue a dental degree (DMD) at Boston University School of Dental Medicine.

Upon graduating at the top of his class from dental school, Dr. Nikolovski received numerous awards including Omicron Kappa Upsilon Dental Honor Society, Summa Cum-Laude designation, and was the top dental student in science based courses.

In 2007 Dr. Nikolovski furthered his training by attending Tufts University School of Dental Medicine for specialty training to study orthodontics and dentofacial orthopedics. At his residency program, Dr. Nikolovski treated many complicated malocclusions, including patients with cleft lip and palate, and patients requiring surgery in conjunction with orthodontics.

Following completion of his residency Dr. Nikolovski returned to Toronto to begin his orthodontic career. Upon his return he completed the specialty examination of the Royal College of Dentists of Canada, and is currently registered as a board certified orthodontist with the Royal College of Dental Surgeons of Ontario.

Dr. Nikolovski enjoys working with both children and adults and loves creating smiles in a warm and friendly environment.

Dr. David Leung

Periodontist

Dr. David Leung was raised in Toronto, Ontario where he attended Upper Canada College for 11 years. Afterwards he attended New York University where he received degrees in Finance and Biochemistry. After his undergraduate degrees, he moved to Philadelphia where he attended the University of Pennsylvania School of Dental Medicine, receiving his doctorate and periodontics training.

After 11 years away he moved back to Toronto to spend more time with his family and to enjoy his hobbies. Dr. Leung is an avid cook, particularly in asian seafood cuisine and he enjoys art galleries, museums and playing baseball in his spare time.

Dr. Leung has a comprehensive background in periodontics, prosthodontics and orthodontics. He has been placing dental implants since 2001, and is a clinical instructor at the University of Toronto. He has lectured at numerous schools and conferences in the United States.

Dr. Leung is a Certified Periodontist and he provides on-site treatment for Harmony Village Dental Care patients.