Formerly The Vein Treatment Centre, now Windflower Vein & Vascular.
Meet Our Vascular Specialists
Our team of board-certified physicians brings decades of combined experience in vascular care, using the latest techniques to provide exceptional patient outcomes.
Contact Information
Dr. Sean Gregg, BSc, MD, FRCSC
Dr. Gregg was raised in rural Alberta. His residency in General Surgery was completed at the University of Calgary in 2009. From there he began a diverse surgical practice before returning to the University of Calgary for subspecialty training in liver and pancreatic surgery. He continues to hold an academic appointment with the University of Calgary. His practice is focused on liver and pancreas oncology, upper GI diseases, and venous insufficiency. His other professional interests include evolving surgical practice models for improved patient experiences.
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Practice Locations
Dr. Matthew Muirhead, BSc, MD, FRCSC
Dr. Matt Muirhead MD FRCSC is a Canadian General Surgeon with a broad and established practice spanning colorectal and breast oncology, hernia surgery, endoscopy, and venous disease.
Originally from Nova Scotia, Dr. Muirhead completed his undergraduate degree in physics at Mount Allison University before earning his medical degree at Dalhousie University. He went on to complete his General Surgery residency at the University of Alberta in 2003.
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Practice Locations
Dr. Shawnik Bhargava, MD, FRCPC, RPVI
Dr. Bhargava is a general internist with fellowship training in vascular medicine. He specializes in the treatment of arterial and venous disease, as well as adult thrombosis. Dr. Bhargava is committed to delivering patient-centred care, emphasizing early detection, prevention, and management of vascular conditions to improve long-term outcomes. He completed his medical training at the Lahey Clinic in Massachusetts. He is board certified by the Royal College of Physicians and Surgeons of Canada, the American Board of Internal Medicine, and the American Board of Vascular Medicine.
Practice Locations
Dr. Douglas Hill, MD, FAVLS, DABVLM
Dr. Douglas Hill has been assessing and treating venous disease since 1989. He is Vice President, Education of the Canadian Society of Phlebology, Past President of the Canadian Society of Phlebology, a Fellow member of the American Vein and Lymphatic Society, and a member of the American Venous Forum. He is a diplomate of the American Board of Venous and Lymphatic Medicine.
His work is frequently presented at national and international conferences on phlebology. He was one of Canada's first physicians to use ultrasound-guided sclerotherapy, and other doctors frequently seek out his expertise in this area.
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Practice Locations
Dr. Fred Ollewagen, MBChB, LMCC, CCFP
Since graduating with his medical degree in 1990 from the University of Pretoria in South Africa, Dr. Ollewagen has spent over a decade focusing on cosmetic medicine and phlebology. In 2008, he took over ownership of what is now the Aurora Skin & Vein clinic, where he has expanded his scope and become a fellow of the Canadian College of Phlebology and a member of the American College of Phlebology. A certified Allergan Injector, he participates in biannual updates and advancements in cosmetic injectables with the Allergan Medical Institute of Facial Aesthetics
Practice Locations
Dr. Steve Johnson, MD, FRCSC, RPVI
Dr. Steve Johnson, MD, FRCSC, RPVI is a Canadian fellowship-trained General and Vascular Surgeon with expertise in vascular ultrasound and the management of complex arterial, venous, and lymphatic disease. He specializes in advanced open and endovascular procedures, as well as comprehensive care for complex wounds, delivering evidence-based, patient-centered treatment.
Practice Locations
Dr. Ryan McColl MD FRCSC
Dr. Ryan McColl MD FRCSC is a Canadian General Surgeon with fellowship training in Colon and Rectal surgery. He earned his medical degree from the University of Alberta before completing a five-year residency in General Surgery at the University of Calgary in 2011. Dr. McColl is a Fellow of the Royal College of Physicians and Surgeons of Canada.
Dr. McColl began his career with a broad-based General Surgery practice that included endoscopy, acute care surgery, and oncologic surgery involving breast, thyroid, and colorectal disease, as well as hernia repair and gallbladder disease. He subsequently pursued advanced fellowship training in Colon and Rectal surgery at the University of British Columbia in Vancouver from 2014 to 2015.
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Shelley Gaudry MN, BN, RN
Shelley Gaudry is an experienced healthcare leader and clinical nursing professional with more than 20 years of expertise in surgical care, clinical nurse education, and quality improvement. Known for a collaborative and solutions-focused leadership style, Shelley has dedicated her career to advancing patient care through evidence-based practice, operational excellence, and staff development.
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Practice Locations
Our Dedicated Staff
Holly
LPN Clinical Operating Lead, Nurse Injector, Sclerotherapy & Vein Specialty Nurse
Cara
LPN Vein Specialty Nurse
Rebecca
RN Vein Specialty Nurse
Jen
Lead Administrator
Brittany
Lead Administrator
Maya
Laser Technician
Sadia
MOA & Receptionist
Lida
MOA & Receptionist
Allison
RN Botox Injector, Sclerotherapy & Vein Specialty Nurse
Alexis
LPN Nurse Injector, Sclerotherapy & Vein Specialty Nurse
Petra
LPN Nurse Injector, Sclerotherapy & Vein Specialty Nurse
Rheanne
LPN Nurse Injector, Sclerotherapy & Vein Specialty Nurse
Jeff
Ultrasound Technician
Alicia
Ultrasound Technician