Medical Director

  • Shannon Jackson MD
  • Joined the BC Adult Bleeding Disorders Program in 2009

Shannon Jackson is Clinical Associate Professor within the Division of Hematology, St. Paul’s Hospital, at the University of British Columbia in Vancouver, Canada. 

Dr Jackson completed her MD at the University of Calgary in 2001, before undertaking a Hematology Residency, and in 2009 she completed a Bayer International Hemophilia Scholarship/Hemostasis Fellowship at the same institution.

Dr Jackson’s research interests include the individualization of prophylaxis in hemophilia, bleeding in collagen disorders and the impact of aging on hemophilia. She is the medical director of the British Columbia Provincial Adult Hemophilia program at St. Paul’s Hospital in Vancouver.

Dr Jackson is currently the Past-president of the Association of Hemophilia Clinic Directors of Canada and a co-Chair of ADVANCE (Age-related DeVelopments ANd CommorbiditEs in hemophilia) Canada.

Hematologist Associates

  • Paul Yenson MD
  • Joined the BC Adult Bleeding Disorders Program in 2012

Dr. Paul Yenson is a staff hematologist with the Adult Bleeding Disorders Program of British Columbia. 

He completed his MD in 2002 followed by residency training in Internal Medicine and Hematology, at the University of British Columbia.

He pursued additional training in Apheresis Medicine at the Puget Sound Blood Centre, Seattle and then Hemoglobinopathies and Hemostasis at the Hospital for Sick Children, Toronto.

He joined the Adult Bleeding Disorders Program in 2013 and is also a staff physician with the Apheresis Program of British Columbia and the Thrombosis Clinic at Vancouver General Hospita

  • Hayley Merkeley MD
  • Joined the BC Adult Bleeding Disorders Program in 2019

Dr. Merkeley grew up in the interior of BC.  She attended the University of Victoria where she obtaied a Bachelor of Science with Distinction in Biopsychology and Spanish.   She attended medical school, Internal Medicine and Hematology residencies at UBC.  She completed a clinical fellowship in red blood cell disorders at the University of Toronto, and concurrent MSc in Public Health from the University of London's School of Hygiene and Tropical Medicine.  

She works as a general hematologist at Providence Hematology, with privileges at St. Paul's Hospital and Mount St. Joseph's Hospitals, in the Provincial Hemoglobinopathy Program and Adult Bleeding Disorders Program at St. Paul's Hospital.   

She oversees medical students and residents rotating through hematology at St. Paul's and sits on the Hematology residency training committee.    Her clinical and research interests are in sickle cell disease and thalassemia.  

She is the mother to a young son, with another baby on the way in March 2021.


Our physicians have additional training in the assessment and management of bleeding disorders and are also general hematologists who work out of other clinics

  • Dr. Jackson, Providence Hematology, SPH
  • Dr. Yenson, Vancouver General Hematology
  • Dr. Hayley Merkeley, Providence Hematology, SPH

Because SPH is an academic teaching hospital associated with UBC, you may be seen by a medical resident during your visit who is working under the supervision of our physicians