Our Board of Advisors

Board of Advisors

Dr. Shaf Keshavjee

As a Companion of the Order of Canada, Dr. Keshavjee represents the pinnacle of surgical innovation and lung transplantation. Currently serving as the Chief of Innovation at University Health Network (UHN), he bridges the gap between complex thoracic surgery and pioneering biomedical engineering. His global leadership in transplant research ensures patients receive world-class care driven by the highest standards of medical excellence.

man in white thobe standing
Board of Advisors

Dr. Tom Harmantas

Dr. Tom Harmantas is an Associate Professor of Surgery at the University of Toronto. He is a dual Fellow of the American College of Surgeons and the Royal College of Surgeons of Canada, and holds a Master of Science in Epidemiology from the Harvard University School of Public Health, along with a Leadership and Development Certificate from the Department of Health Policy and Management.

Board of Advisors

Dr. Andres Gantous 

An internationally recognized leader in facial plastic and reconstructive surgery, Dr. Gantous serves as the Chief of Otolaryngology-Head & Neck Surgery at St. Joseph’s Health Centre. His triple board certification and executive roles in global surgical societies underscore a career defined by elite technical precision and medical integrity. As a celebrated educator at the University of Toronto and Mission Director for Face The Future Canada, he combines world-class surgical mastery with a profound commitment to global humanitarian care.

Board of Advisors

Dr. Ved Tandan

A pioneer in hepatobiliary surgical oncology, Dr. Tandan performed Canada’s first laparoscopic hepatic lobectomy and brings 30 years of surgical mastery to complex pancreatic and sarcoma care. As Chief of Surgery at West Lincoln Memorial Hospital and a Past President of the Ontario Medical Association, his leadership is defined by a commitment to systemic quality improvement. He seamlessly integrates advanced clinical practice with academic excellence to provide trustworthy, cutting-edge surgical solutions.

Board of Advisors

Dr. Alan Tan

Dr. Alan Tan is a family and emergency physician with advanced expertise in emergency ultrasonography. Trained at McMaster, Queen’s, and Western Universities, he completed a Fellowship in Emergency Ultrasonography at Sunnybrook Health Sciences Centre, where he now practices and teaches in the emergency department. A Master Instructor with the Canadian Point-of-Care Ultrasound Society, Dr. Tan is actively involved in ultrasound education and research in emergency point-of-care ultrasound, simulation, and medical education.

Board of Advisors

Dr. Dimitri Dimitrakoudis

As Chief of Neurology at St. Joseph’s Health Centre and an Adjunct Clinical Professor at the University of Toronto, Dr. Dimitrakoudis combines elite academic credentials with specialized expertise in neuro-ophthalmology. His reputation as an award-winning educator and respected medical-legal expert underscores a career built on precision and professional integrity. Beyond his active clinical practice, his contributions to peer-reviewed research ensure he remains at the forefront of neurological innovation and trustworthy patient care.

Chief Medical Officer

Dr. Andres Santayana

Dr. Santayana is a board-certified Family Medicine physician with diverse experience in academic, hospital, and outpatient settings. He has held various leadership roles throughout his career, and helped launch a private, physician-owned medical group. Skilled in broad-spectrum Family Medicine, he focuses on preventive care, chronic disease management, and procedures. His guiding principle is empowering patients to take control of their health.

Board of Advisors

Dr. Amr Elmaraghy

With 25 years of specialized experience, Dr. Elmaraghy is a recognized leader in upper extremity reconstruction and sports medicine. As the former Interim Chief of Surgery at St. Joseph’s Health Centre, he combines a legacy of institutional leadership with hands-on clinical mastery. His work as a consultant for Canada’s National Basketball team underscores a career dedicated to elite-level functional recovery.

Board of Advisors

Dr. Shiva Jayaraman

Trained at Memorial Sloan-Kettering, Dr. Jayaraman is an internationally recognized leader in complex hepatobiliary and pancreatic surgery. As the incoming President of the Canadian Association of General Surgeons, he combines elite technical mastery with a prestigious academic role at the University of Toronto. His practice is defined by a global reputation for innovation, integrity, and a steadfast commitment to world-class patient care.

Board of Advisors

Dr. Constantine Harmantas

Dr. Harmantas is a board-certified physician specializing in comprehensive skin health and medical aesthetics. She holds a Focused Practice Designation in Skin Disorders, providing expert dermatological and procedural care.

Board of Advisors

Dr. Shaf Keshavjee

As a Companion of the Order of Canada, Dr. Keshavjee represents the pinnacle of surgical innovation and lung transplantation. Currently serving as the Chief of Innovation at University Health Network (UHN), he bridges the gap between complex thoracic surgery and pioneering biomedical engineering. His global leadership in transplant research ensures patients receive world-class care driven by the highest standards of medical excellence.

man in white thobe standing
Board of Advisors

Dr. Tom Harmantas

Dr. Tom Harmantas is an Associate Professor of Surgery at the University of Toronto. He is a dual Fellow of the American College of Surgeons and the Royal College of Surgeons of Canada, and holds a Master of Science in Epidemiology from the Harvard University School of Public Health, along with a Leadership and Development Certificate from the Department of Health Policy and Management.

Board of Advisors

Dr. Andres Gantous 

An internationally recognized leader in facial plastic and reconstructive surgery, Dr. Gantous serves as the Chief of Otolaryngology-Head & Neck Surgery at St. Joseph’s Health Centre. His triple board certification and executive roles in global surgical societies underscore a career defined by elite technical precision and medical integrity. As a celebrated educator at the University of Toronto and Mission Director for Face The Future Canada, he combines world-class surgical mastery with a profound commitment to global humanitarian care.

Board of Advisors

Dr. Ved Tandan

A pioneer in hepatobiliary surgical oncology, Dr. Tandan performed Canada’s first laparoscopic hepatic lobectomy and brings 30 years of surgical mastery to complex pancreatic and sarcoma care. As Chief of Surgery at West Lincoln Memorial Hospital and a Past President of the Ontario Medical Association, his leadership is defined by a commitment to systemic quality improvement. He seamlessly integrates advanced clinical practice with academic excellence to provide trustworthy, cutting-edge surgical solutions.

Board of Advisors

Dr. Alan Tan

Dr. Alan Tan is a family and emergency physician with advanced expertise in emergency ultrasonography. Trained at McMaster, Queen’s, and Western Universities, he completed a Fellowship in Emergency Ultrasonography at Sunnybrook Health Sciences Centre, where he now practices and teaches in the emergency department. A Master Instructor with the Canadian Point-of-Care Ultrasound Society, Dr. Tan is actively involved in ultrasound education and research in emergency point-of-care ultrasound, simulation, and medical education.

Board of Advisors

Dr. Dimitri Dimitrakoudis

As Chief of Neurology at St. Joseph’s Health Centre and an Adjunct Clinical Professor at the University of Toronto, Dr. Dimitrakoudis combines elite academic credentials with specialized expertise in neuro-ophthalmology. His reputation as an award-winning educator and respected medical-legal expert underscores a career built on precision and professional integrity. Beyond his active clinical practice, his contributions to peer-reviewed research ensure he remains at the forefront of neurological innovation and trustworthy patient care.

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RevDoc is a digital platform that connects patients with independently licensed healthcare providers. All medical services available through RevDoc are delivered solely by independent qualified clinicians who determine medical appropriateness and oversee patient care. RevDoc does not itself provide medical advice, diagnosis, or treatment.

For insured services, RevDoc operates in an OHIP-compliant manner consistent with Ontario Ministry of Health requirements. For uninsured or block-fee services, fees are established by participating providers and are not covered by OHIP or other provincial health plans.

Information on this website is provided for informational and educational purposes only and should not be interpreted as medical advice or a substitute for consultation with a healthcare professional.

RevDoc is committed to protecting your privacy and safeguarding personal health information in accordance with the Personal Health Information Protection Act (PHIPA) and other applicable privacy laws. Data is stored securely and shared only with authorized providers involved in your care.

Use of this website or platform does not establish a doctor–patient relationship with RevDoc.  Any such relationship is formed solely between the patient and the independent licensed provider.


If you are experiencing a medical emergency, call 911.

Get It:

Get in Touch

RevDoc is a digital platform that connects patients with independently licensed healthcare providers. All medical services available through RevDoc are delivered solely by independent qualified clinicians who determine medical appropriateness and oversee patient care. RevDoc does not itself provide medical advice, diagnosis, or treatment.

For insured services, RevDoc operates in an OHIP-compliant manner consistent with Ontario Ministry of Health requirements. For uninsured or block-fee services, fees are established by participating providers and are not covered by OHIP or other provincial health plans.

Information on this website is provided for informational and educational purposes only and should not be interpreted as medical advice or a substitute for consultation with a healthcare professional.

RevDoc is committed to protecting your privacy and safeguarding personal health information in accordance with the Personal Health Information Protection Act (PHIPA) and other applicable privacy laws. Data is stored securely and shared only with authorized providers involved in your care.

Use of this website or platform does not establish a doctor–patient relationship with RevDoc.  Any such relationship is formed solely between the patient and the independent licensed provider.


If you are experiencing a medical emergency, call 911.

Get It:

Get in Touch

RevDoc is a digital platform that connects patients with independently licensed healthcare providers. All medical services available through RevDoc are delivered solely by independent qualified clinicians who determine medical appropriateness and oversee patient care. RevDoc does not itself provide medical advice, diagnosis, or treatment.

For insured services, RevDoc operates in an OHIP-compliant manner consistent with Ontario Ministry of Health requirements. For uninsured or block-fee services, fees are established by participating providers and are not covered by OHIP or other provincial health plans.

Information on this website is provided for informational and educational purposes only and should not be interpreted as medical advice or a substitute for consultation with a healthcare professional.

RevDoc is committed to protecting your privacy and safeguarding personal health information in accordance with the Personal Health Information Protection Act (PHIPA) and other applicable privacy laws. Data is stored securely and shared only with authorized providers involved in your care.

Use of this website or platform does not establish a doctor–patient relationship with RevDoc.  Any such relationship is formed solely between the patient and the independent licensed provider.


If you are experiencing a medical emergency, call 911.