Ph: 705-728-2280
Drs. Hartsburg, Leslie & Ray - Fax: 705-728-0033
Dr. Foell - Fax: 705-728-0222

Our Professionals

Dr. Kirsten Foell

Dr. Foell practices in all areas of urology, and her special areas of interest and expertise are kidney stones and minimally invasive (laparoscopic or “keyhole”) surgery, particularly for urologic cancers. She has been practicing in Barrie since 2013.

After obtaining a Bachelor of Science in Life Sciences from Queen’s University, she earned a Medical Degree at the University of Western Ontario. She then stayed in London, Ontario, to complete five years of residency training in Urology. In 2011, Dr. Foell became a Fellow of the Royal College of Physicians and Surgeons of Canada.

Before starting her practice in Barrie, Dr. Foell completed two years of fellowship subspecialty training in Endourology at St. Michael’s Hospital in Toronto. The fellowship focused on research and advanced surgical procedures for kidney stone removal, and minimally invasive surgery for a wide variety of urologic diseases.

Dr. Foell has authored numerous peer-reviewed journal articles and book chapters, and has presented research findings at various international conferences. Dr. Foell is an adjunct lecturer with the University of Toronto and is involved in ongoing clinical research.

Dr. Foell is delighted to be practicing and raising her family in the community of Barrie.

Dr. Cory Hartsburg

Dr Hartsburg has been a practicing Urologist in Barrie since September, 2003. He completed a Bachelor of Science degree in Biology at Point Park University in Pittsburgh, PA in 1991 and then went on to Medical School at Queen’s University in Kingston, Ontario  where he completed his MD in 1997.

Following that he did his residency in Urology through the University of Ottawa and became a Fellow of the Royal College of Physicians and Surgeons in 2002. He then completed a one year clinical fellowship in endourology at Toronto East General Hospital before coming to Barrie. He performed the first percutaneous kidney stone surgery in Barrie in 2003.

He is an Adjunct Lecturer for the University of Toronto who has participated in over 50 clinical trials since coming to Barrie.

Dr. Andrew Ray

Dr. Ray obtained his Bachelor of Science degree in Biochemistry at McGill University in Montreal and his Master’s degree in Pharmacology at the University of Toronto. He then went on to Medical School at Dalhousie University in Halifax, graduating in 2003. Dr. Ray then completed his Urology residency at the University of Western Ontario, obtaining his FRCS(C) in 2008. Two additional years of Fellowship training at the University of Toronto followed, where he further concentrated in Minimally Invasive Surgery (MIS) and kidney stones. Dr. Ray practices in all aspects of Urology, but has a special interest in minimally invasive treatments for genitourinary cancer as well as kidney stones.

Dr. Ray is an Adjunct Lecturer with the University of Toronto and is still actively engaged in clinical research. He is the author of over 20 published peer-reviewed articles and book chapters and has presented at numerous international meetings. Dr. Ray moved to Barrie in 2010 and rapidly put down roots. In the summer, he is an avid golfer and in the winter an active skier. He is married with two children.

Dr. Robert Leslie

Dr. Leslie’s practice primarily consists of urologic oncology and kidney stones. He has a special interest and expertise in kidney cancer, prostate cancer and bladder cancer. He specializes in advanced laparoscopic and open cancer surgery. In addition, Dr. Leslie performs percutaneous nephrolithotripsy and ureteroscopy for kidney stones. He also practices general urology.

Dr. Leslie completed his medical degree and residency in urology at Queen’s University. He became a fellow of the Royal College of Physicians and Surgeons of Canada in 2017. Dr. Leslie undertook further fellowship training in urologic oncology at the University of Calgary. He has a Master’s of Science from The University of Western Ontario. Dr. Leslie has published numerous peer-reviewed articles and has presented research findings at both national and international conferences.

Dr. Leslie grew up in Barrie and is a graduate of Barrie Central Collegiate. He spent his summers working Search and Rescue for the Canadian Coast Guard on Georgian Bay. He is happy to be back in Barrie, practicing with the Barrie Urology Group.

Dr. Leslie is committed to providing personalized care to improve and maintain your urologic health.


  • Prostate cancer
  • Kidney cancer
  • Bladder cancer
  • Kidney stones
Registered Nurse
Kim Hartsburg-Lang

Kim graduated as a registered nurse in 1977 from the Victoria Hospital School of Nursing, Fanshawe College in London Ontario. Kim brings with her a wide variety of nursing experience.

Until 2013, her most recent position was as a primary nurse in Radiation Oncology at the Peel Regional Cancer Centre, where she was an active member of the Brachytherapy planning project as the nurse champion.

Kim has won awards for nursing excellence and was a nominee for the Toronto Star Nightingale Award in 2011. She has been involved in the development of both male and female sexual health programs providing counselling and education to these patients.

Kim recently moved to Barrie and is looking forward to becoming an active member of the community.