Meet the team
At Hartzel Dental, great care starts with great people. Our dentists bring years of experience, a genuine love for their work, and a shared commitment to making every patient feel confident in their care.
Dr. Bashar Rahmann, Dentist
Dr. Bashar has spent years building a reputation as one of St. Catharines’ most trusted dental professionals. His approach is rooted in compassion: taking time to understand each patient’s concerns, explaining treatment options clearly, and delivering care that’s as comfortable as it is effective.
He provides a full range of services including preventive checkups, restorative treatments, cosmetic smile improvements, and same-day emergency care, all with a focus on putting patients first.
Dr. Ahmed Sabri, Dentist
Dr. Sabri is dedicated to comprehensive family and cosmetic dentistry that patients can feel good about. Known for his precision and his warmth, he takes a holistic view of oral health, connecting the care he provides in the clinic with the confidence and comfort patients experience every day.
From preventive care to cosmetic enhancements and same-day emergency appointments, Dr. Sabri is a steady and trusted presence for patients across St. Catharines.
Dr. Nada Kamosi, Dentist
Dr. Nada Kamosi is a general practitioner dentist with more than 25 years of experience in the field. She obtained her Bachelor’s Degree in Dental Surgery from the University of Baghdad, Iraq in 1989. Dr. Kamosi went on to earn her Certificate of Qualification from the National Dental Examination Board of Canada in 2017.
She is a member of the Ontario Dental Association (ODA) and Canadian Dental Association (CDA). She is a caring and committed professional who is a strong believer in preventative dentistry. Her diverse career experiences and passion for dentistry allow her to provide exceptional care for her patients
Dr. Mahmoud Mohammad, Dentist
Dr. Mahmoud Mohammad is dedicated to providing compassionate, personalized dental care in a comfortable and welcoming environment. From preventive checkups to restorative and cosmetic treatments, his goal is to help every patient achieve a healthy, confident smile at Hartzel Dental.
Dr. Rami Khalaf, DDS
Dr. Rami Khalaf earned his dental degree from the University of Jordan in 2021 and moved to Canada that same year, completing the NDEB equivalency process in 2025. He is a member of the Canadian and Ontario Dental Associations and the Royal College of Dental Surgeons of Ontario.
Dr. Khalaf brings a broad passion for dentistry to every appointment, with interests spanning preventive care, restorative treatments, cosmetic procedures, and oral surgery. He is committed to staying current with the latest developments in the field and takes genuine pride in delivering thoughtful, compassionate care to each patient.
Originally from Baghdad, Iraq, Dr. Khalaf now lives in Mississauga with his family. Outside the clinic, he enjoys reading, fitness, travel, and following the latest innovations in health care.
Meet the team
Elena
Office Manager
Karla
Dental Hygienist
AJ
Dental Assistant