our team
Our dedicated professionals at Clinique Médicale Step are committed to providing comprehensive and compassionate care to every patient.
our medical team
medical directors
MDCM, CCFP
Dr. David Rothstein is a graduate of McGill Medical School (2015) and McGill’s Family Practice Program at St. Mary’s Hospital (2017). He worked at Elna Pediatrics Tiny Tots and served for several years as the Family Medicine Director. He co-chairs McGill University’s Practical Problems in Pediatrics conference. He also serves as a faculty lecturer for McGill Family Medicine residents and holds the position of Osler Fellow, teaching and mentoring medical students.
He is a highly-trained, experienced, family doctor who is particularly interested in paediatrics and urgent care. His professional approach focuses on providing an excellent quality of care that is thorough, compassionate and readily accessible. A strong believer in collaboration and communication, Dr. Rothstein values working within an efficient team of family physicians and sub-specialists while collaborating with allied services. He enjoys working hard to meet the highest standards of care for his patients and is always available for them if they have a concern.
Dr. Rothstein is married to a dentist (pediatrics) and has two amazing children, Aiden and Dylan.
MDCM, CCFP
Dr. Alicia Lessard graduated with honours from McGill University’s Faculty of Medicine (2021). She then completed her family medicine residency in 2023 at St. Mary’s Hospital (McGill University). As a family doctor, she is particularly interested in paediatrics and women’s health. Her approach is empathetic and she has always attached great importance to working in a team that strives for excellence in patient care and experience.
Dr. Lessard was an elite athlete for many years and has therefore always prioritized teamwork and collaboration. She values the relationships with her patients as well as with her colleagues or other healthcare workers.
Dr. Lessard is married to a supportive husband and will be treating your children as if they were her own.
family medicine doctors
Dr. Alicia Lessard
Dr. Arielle Springer
Dr. Craig Mccullogh
Dr. David Rothstein
Dr. Jennifer Moscovitz
Dr. Kailas Rumjahn Gryte
Dr. Kathryn Wheeler
Dr. Kaylie Schachter
Dr. Mariana Useche Martinez
Dr. Oana Jumanca
Dr. Sabrina Lasry-Shemie
medical specialists
Dr. Avigyle Grunbaum, General Pediatrics
Dr. Erica Abbey, Dentistry
Dr. Jack Rothstein, Otorhinolaryngology (ENT)
Dr. Jordan Trevisonno, Immunology and Allergy
Dr. Maya Leitner, General Pediatrics and Adolescent Medicine
Dr. Michelle Le, Dermatology
Dr. Richard Schreiber, Pediatric Gastro-enterology
Dr. Silvana Barone, General Pediatrics
our head nurse
Philoméne Zoa Tsama
Head Nurse
A dedicated nurse with 20 years of experience, Philomene Zoa Tsama welcomes and cares for your children with patience and dedication. You are sure to receive quality care and appropriate advice at every visit.
our allied care team
allied care director
PHT, MPT
Allison Gardos is a seasoned pediatric physiotherapist with over 18 years of experience. Allison has extensive experience working with children with a wide range of pediatric conditions, including neurologic, orthopedic and gross motor delays. She pursued her dream by attending Georgia State University in Atlanta and obtaining her Master’s in Physical Therapy in 2002. Her passion is working with children and adapting to their needs. She works in a variety of different settings including pediatric clinics, homecare, daycare and schools. Her approach to treatment is family centered and collaborative. She believes in working together as a team with the patients’ families to make a significant difference through physical rehabilitation.
Established as a reference in the Montreal pediatric physiotherapist private services, she also guest lectures at McGill University in the Masters of Physiotherapy department. She has attended national pediatric conferences, symposiums and courses certified by the Montreal Children’s Hospital and by CHU Ste-Justine Hospital. In her spare time, she loves spending time with her family, skiing, traveling and playing piano.
allied care team
Allison Gardos, Physiotherapy
Caitlin Hier, Nutrition and Dietetics
Callie Gruber, Child Behaviour
Elissa Benjamin, Speech-Language Pathology
Harriet Greenstone, Psychology
Hillary Freedman, Social Work
Mona Sajjadi, Physiotherapy
Samantha Tayler, Occupational Therapy
our administrative team
Administrative Director
Melissa Patterson is an experienced administrative associate with robust foundations in clinical operations. Most of her 15+ year career was spent in the healthcare sector, holding pivotal positions in project management and driving business development initiatives at Vision Group Canada.
Melissa’s innate empathy and nurturing nature shine through in everything she does. A dedicated mom to three little boys, Melissa is no stranger to the journey that is parenthood. Her boundless passion and unwavering dedication to her community are evident in her work ethic and contributions.
Clinic Supervisor
Blending his background as a medical secretary with a degree in tourism from St. Pius Culinary and Business School, Mark Diez has accumulated a wealth of experience in the service industry.
He is a passionate traveller and has visited Mexico, Hong Kong, Italy, Philippines and Japan. Mark loves staying active at the gym, trying new food, and meeting new people. He values his relationships with patients and is a dedicated friend. As a natural team player, Mark thrives in collaborative environments and cherishes the opportunity to help people.
He believes in the power of human connection and values the relationships he forms, both professionally and personally.
Lauren Melnick
Medical Secretary
Lauren Melnick has dedicated over 15 years to nurturing and supporting the growth of young minds with compassion and expertise. Her journey began in the Early Childhood Education field where she developed a deep understanding of child development. Lauren then transitioned her career to the medical field, bringing her wealth of experience in administrative management and customer service to her role as a Medical Receptionist. Her commitment to delivering quality patient care, combined with her background in education, allows her to create a warm and welcoming environment for all patients.
Lauren is the mother of 3 young children. Outside of work, she enjoys spending time with her family and friends. Her passion for helping others and her diverse skill set make her an invaluable asset in any professional environment.