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Our Team

The Thrombosis Program takes a team approach to patient care. Our team includes hematologists, nurses, receptionists and research associates.

Our hematologists are all members of the Division of Hematology, in the Department of Medicine at the University of British Columbia. We are active in clinical practice, medical education and research.

Our incredible support staff ensures that our patients receive the best care possible. The nurses in the Thrombosis Program work closely with our patients to deliver comprehensive care and to improve the quality and safety of all patients receiving anticoagulation.

Our nursing staff performs a wide range of important tasks which include: triaging referrals to the Thrombosis Clinic; providing anticoagulation counseling to patients and their family members; teaching self-injection techniques; helping patients to manage warfarin dosing and the use of a point-of-care device; offering post-operative follow-up; and providing telephone advice about commonly asked questions regarding anticoagulant therapy.

Our nurses and research staff also ensure patients are given opportunities to take part in cutting-edge clinical research in thrombosis. To make all of this possible, our reception coordinates clinical appointments and diagnostic testing, and welcomes our patients with a smile.

Finally, we believe patients and their families are an important part of the team, and their contribution to the care plan is extremely important.


Meet the members of our team.

Dr. Agnes Lee
Agnes Y. Y. Lee, MD, MSc, FRCPC

Dr. Lee is the Medical Director of the Thrombosis Program. She is a Professor of Medicine at University of British Columbia (UBC) and holds a


Dr. Kimberley Ambler
Kimberley Ambler, MD, FRCPC

Dr. Ambler obtained a Bachelor of Science, Honours degree from Queen’s University and her medical degree at Dalhousie University. She completed


Amy Chu
Erin Ames, RN

Bio coming...


Amy Chu
Amy Chu, RN

Amy Chu is a nurse on the Thrombosis Clinic team. Amy completed her Bachelor of Science in Nursing at Langara College in 2014. She began


Leanna Korns-Arida
Leanna Korns-Arida, RN

Leanna Korns-Arida is a nurse on the Thrombosis Clinic team. Leanna completed her nursing diploma from Calgary’s Foothill’s School of Nursing


Dr. Ben Lai
Chieh Min (Ben) Lai, MD, PhD, FRCPC

Dr. Lai is a staff hematologist at Vancouver General Hospital and a Clinical Assistant Professor at the University of British Columbia (UBC).


Dr. Charles Li
Charles Li, BMSc, MD, FRCPC, ABIM

Dr. Li is a Clinical Associate Professor at the University of British Columbia. He finished his Royal College training in Hematology in 1998 and has been


Dr. Stephen Parkin
Stephen Parkin, MD, FRCPC

Dr. Parkin is a staff hematologist at Vancouver General Hospital and a Clinical Assistant Professor at the University of British Columbia (UBC).


Erica Peterson
Erica Peterson, MD, MSc, MHSc, FRCPC

Dr. Peterson is a staff hematologist at Vancouver General Hospital and a Clinical Assistant Professor at the University of British Columbia (UBC).


Karen Schmidt
Karen Schmidt, RN

Karen Schmidt is a nurse on the Thrombosis Clinic team. Karen completed her Nursing Diploma from the British Columbia Institute of


Jill Scott
Jill Scott, RN

Jill Scott is a nurse on the Thrombosis Clinic team. Jill has worked in the field of hematology for 30 years, mostly at Vancouver General Hospital


Dr. Gayatri Sreenivasan
Gayatri M. Sreenivasan, MD, FRCPC

Dr. Sreenivasan is a Clinical Associate Professor in the Division of Hematology at the University of British Columbia (UBC), staff hematologist


Dr. Peter Tsang
Peter Tsang, MD, FRCPC

Dr. Tsang is a staff hematologist at Vancouver General Hospital (VGH). He obtained his medical degree at the University of Western Ontario in 1986


Dr. Julia Varghese
Julia Varghese, MD, FRCPC

Dr Varghese is a staff hematologist at Vancouver General Hospital and a Clinical Assistant Professor at the University of British Columbia (UBC).


Dr. Paul Yenson
Paul Yenson, MD, FRCPC

Dr. Yenson is a Clinical Hematologist, Vancouver General Hospital (VGH) and a Clinical Associate Professor in the Division of Hematology at the


Dr. Leslie Zypchen
Leslie Zypchen, MD, FRCPC

Dr. Zypchen is hematologist at the Thrombosis Clinic and a Clinical Associate Professor in the Division of Hematology at the University of



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The team at the Thrombosis Clinic at VGH sees more than 850 patients annually for blood clotting conditions.

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