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Our Team

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Dr. John Olarte, MD, CCFP

After completing his medical degree at the Universidad Industrial de Santander in Colombia in 1998, Dr. Olarte worked for five years as an emergency room doctor and as an intensive care unit physician.

He immigrated to Canada in 2003 and obtained his certification from the College of Physicians of Newfoundland and Labrador in 2007. Dr. Olarte settled on the Canadian east coast where he worked as a family doctor and emergency room physician.

In 2011, Dr. Olarte made the move to Ontario and obtained his Certifications from the College of Physicians of Ontario and the College of Family Physicians of Canada in 2011.

Throughout his career, he has developed a wide spectrum of skills and deep understanding of emergency and trauma care, and general family medicine. This well-rounded knowledgebase has helped him develop into a family physician with a reputation of empathy, expertise, and the provision of comprehensive patient care.

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Dr. Rosa Haddock de Jesus

Dr. Haddock de Jesús completed her Medical Degree and Pediatric Residency Program at the University of Puerto Rico - Medical Sciences Campus in San Juan, Puerto Rico (USA) in 2013 and 2017 respectively. She also completed 3 years of fellowship training in Pediatric Critical Care at the Holtz Children's Hospital in Miami, Florida, USA from 2017-2020. After graduating, she moved to Ontario where she has practiced General Pediatrics for the last 2 years.

Dr. Haddock de Jesús is Board Certified in Pediatrics by the American Board of Pediatrics (ABP) and a Recognized Specialist by the College of Physicians and Surgeons of Ontario (CPSO). Her interests include: well baby care, developmental delay, autism spectrum disorder, learning and behaviour disorders, among many other conditions that may affect the paediatric population. When she is not working at the office, she likes to spend her time with family, swimming, reading, walking, biking and playing dominoes.

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Dr. Carolina Gimeno Marín

After completing her Medical Degree at the Universitat De València, Spain in 2010 Dr. Carolina Gimeno Marín moved to the United Kingdom where she gained experience in internal medicine, gynecology and general surgery before qualifying as a family Doctor in 2016. She practiced family medicine as a partner of NHS England for over 6 years before making the move to Ontario, Canada in 2022. Since then she has been working as a family physician in Brampton, ON and is now pleased to be offering her services in Mississauga, ON as of 2023.

Dr. Carolina Gimeno Marín obtained membership of the Royal College of General Practitioners in 2016, Diploma with the Royal College of Obstetricians and Gynaecologists in 2017 and is recognized as a Family Physician by the College of Family Physicians of Canada in 2022. Her professional interests are in women’s health, sexual health, disease prevention and minor procedures. Outside of work her numerous hobbies include running, hiking and cycling in the great outdoors; she is an enthusiastic crafter, avid knitter, cat lover and an adventurous traveler.

Contact Us




755 Queensway East Unit 6 & 7
Mississauga, ON, L4Y 4C5

TEL.: 905-896-9500
FAX.: 647-777-6148
EMAIL: info@cawthrahealthcentre.com

Office Hours:
Monday - Friday 8:30am-5:00pm