Comprehensive Internal Medicine Care
Detailed Evaluation. Diagnostic Precision. Individualized Management.
Precision Care for the Whole Picture
Integria Precision Medicine is a physician-led internal medicine clinic providing referral-based consultative care grounded in thorough diagnostic evaluation, detailed clinical assessments, and evidence-informed management and risk reduction plans.
We specialize in the comprehensive assessment and management of complex medical conditions, with focused expertise in Resistant and Secondary Hypertension, Cardiovascular Risk Reduction, Metabolic Health, and Complex Menopause Care.
Our approach integrates detailed evaluation, advanced diagnostics including in-house Ambulatory Blood Pressure Monitor (ABPM), holter monitoring, 14-day event monitoring and DEXA scanner, and individualized management strategies tailored to each patient’s unique physiology and clinical presentation.
We work collaboratively with family physicians and specialist colleagues, providing clear diagnostic reasoning, comprehensive consult reports, and actionable management recommendations that support high-quality longitudinal care and preventative health strategies.
What Your Care Includes
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Comprehensive specialist care, individualized with precision and purpose.
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Resistant or secondary hypertension
Cardiovascular disease, cardiac risk assessment
Diabetes, dyslipidemia, and complex metabolic disease
Perimenopause & Menopause care, including patients with medical complexity
Endocrine disorders, bone health concerns
Anemia, abnormal CBC/coagulation, or unexplained lab abnormalities
Diagnostic uncertainty or complex multisystem issues requiring internal medicine assessment
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Extended consultations with comprehensive diagnostic synthesis
Integration of in-house and advanced diagnostic testing
Clear, structured consult letters with evidence-informed recommendations
Collaborative communication with referring physicians
Individualized management strategies grounded in current evidence
“At Integria, making sense of complexity
is what we do best.”
The Internal Medicine Team
Dr. Watson is a fellowship-trained General Internal Medicine specialist with extensive hospital-based expertise and nearly a decade of combined inpatient and outpatient practice in Calgary. She also holds a Master’s degree in Pharmacology and Toxicology from Michigan State University and worked for five years as Clinical Pharmacology staff in Calgary, developing advanced expertise in complex medication management, polypharmacy, pharmacogenomics and therapeutic optimization. In addition to her clinical work, she has held a leadership role at the Rockyview General Hospital over a four year period as the Department of Medicine Site Lead.
Dr. Watson has a focused clinical interest in resistant and secondary hypertension and is completing an additional 1-year fellowship in endocrine hypertension. She is a Menopause Society Certified Practitioner MSCP, providing evidence-informed care through perimenopause and beyond, with particular emphasis on cardiometabolic risk reduction and prevention-oriented hormone optimization.
Dr. Kathryn Watson
MD, MSc, FRCPC, MSCP
General Internal Medicine Specialist
Clinical Pharmacology & Hypertension Specialist
Clinical Lecturer, University of Calgary, Cumming School of Medicine
Dr. Anna Purdy
MD, MSc, FRCPC, MSCP
General Internal Medicine Specialist
Associate Clinical Professor, University of Calgary, Cumming School of Medicine
Senior Medical Director, Southern Alberta Clinical Network
Dr. Purdy is a highly respected General Internal Medicine specialist with more than 20 years of clinical experience and advanced postgraduate training, including a Master’s degree in Chemistry. Trained at the University of Calgary, she has held progressive hospital and provincial leadership roles, including a decade as Department of Medicine and General Internal Medicine Site Lead at Rockyview General Hospital and a provincial senior leadership role within Alberta Health Services’ Medicine Strategic Clinical Network.
Dr. Purdy has been a Menopause Society Certified Practitioner MSCP for four years and provides specialized care in cardiovascular risk assessment, metabolic health, and menopause management in the context of medical complexity. She is recognized for her comprehensive, thoughtful approach and clear diagnostic reasoning, with management plans grounded in current evidence and individualized to each patient’s unique needs.
Dr. Stewart Spence
MD, FRCPC
Dr. Spence is a fellowship-trained General Internal Medicine specialist with experience in both hospital- and community-based clinical practice. He has also completed a fellowship in point-of-care ultrasound (POCUS). He serves as an Assistant Program Director within the Internal Medicine Residency Program at the University of Calgary and has been recognized for excellence in clinical teaching. In addition to his clinical work, Dr. Spence is currently completing a Master’s degree in Healthcare Leadership through the University of Dundee. Dr. Spence is known for his kind, thoughtful, evidence-informed approach to patient care.
Dr. Ryan Iwasiw
MD, FRCPC
Dr. Iwasiw currently works as a General Internist at Rockyview General Hospital. His clinical interests include complex and chronic multi-system disease, point-of-care ultrasound (POCUS), end-of-life care and decision-making, medical education, and medical simulation. In addition to his clinical work in both hospital and outpatient settings, he serves as the General Internal Medicine Clinic Site Lead and the Virtual Home Hospital Site Lead at Rockyview General Hospital. He is also the Regional e-Consults Lead for Calgary. In these roles, he is actively involved in advancing innovative models of care, improving access to specialist services, and optimizing clinical systems to better serve patients and providers.
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Evidence-informed care. Delivered with precision.