Markham Family Physicians experienced a cybersecurity incident in December 2025, during which certain information was accessed and exfiltrated from our systems. Following the incident, we notified all potentially affected patients directly by letter or email. If you previously received a notice from us regarding this incident, please read this update carefully.

If you did not receive a letter or email from us regarding this incident, then your personal information and personal health information was not affected and this update does not apply to you.

We want to reassure our affected patients that we took this situation very seriously from the outset. With the assistance of specialized experts, we conducted a thorough forensic investigation and implemented additional safeguards to help prevent a similar incident from occurring in the future.

Unfortunately, our investigation has confirmed that some of the information taken from our systems has been published on the dark web. While we do not know exactly which specific information may have been involved, we cannot rule out the possibility that your personal information is among it. For this reason, and in the interest of transparency, we felt it was important to inform you.

The personal information and personal health information relating to you that may have been involved in the December incident remains limited to the information identified in the notice you received in February.

We understand that updates of this nature can be concerning, and we remain available to answer your questions and support you. If you have any questions or concerns, please do not hesitate to contact us at: cyberissue@markhamfht.com.

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About Markham Family Health Team

Family Health Teams are playing an important role in improving quality of care and access to primary health services across the Province. FHTs are an initiative launched by the Ontario Ministry of Health. The FHT concept involves bringing physicians and other health professionals together to provide high quality primary care.
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Our organizational approach has been one underlined by integrity and a determination to do what is best for the patients we care for. We value the opportunity to afford our patients the expertise of allied health professionals working in collaboration with their family physician.

Care for a Lifetime

Our Mission

Our mission is to create and deliver a model of lifelong care that optimizes health for the individuals, families and community we serve. We will achieve our mission with a collaborative approach to patient-centred primary health care, thoughtful innovation, and the application of best practices supported by advanced information technology.

Our Vision

To provide unparalleled comprehensive primary health care.

Strategic Priorities

2023-2026
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MFHT is a not for profit Canadian Corporation

Corporate Structure

The model employed is of a physician led Board. A seven member Executive Committee meets regularly to advise and direct the FHT.  From conception in 2006, to inauguration in 2007 and expansion in 2008 it has been a constant learning process.

Board of Directors

Dr. Greg Um – Board Chair
Dr. Tom Filosa – Board Director
Dr. Allan Grill – Lead Physician
​Suki Chahal-Bains – Board Director​
Dr. Ron Esterbauer – Board Director
Mark Lievonen – Board Director
Stephanie Ware –  Board Director
Dr. Lorraine Mingie – Board Director

Executive Director

Raj Sohi
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Serving the Markham area for over 30 years

Family Health Teams are playing an important role in improving quality of care and access to primary health services across the Province.

FHTs are an initiative launched by the Ontario Ministry of Health. The FHT concept involves bringing physicians and other health professionals together to provide high quality primary care.

The health team concept, in Markham, dates back to the early 1990s when Markham Family Physicians, MSH CEO Dr Jim MacLean and the Department of Family Medicine formulated a concept featuring interdisciplinary care available to our patients. The work, a little ahead of its time, was held in waiting for the correct medical and political climate. Changes in health care in 2005/2006 have now allowed the ideas to become reality.

Markham Family Health Team was built on the determination of Markham Family Physicians, The Markham Stouffville Hospital Family Medicine Department and local Family Physicians Drs. Esterbauer and Um. Dr William Newton provided the necessary leadership and patient guidance while Drs Tom Filosa, Jeff Weisberger, Ron Esterbauer and Stephen McLaren formed the MFHT Executive Committee.

The family physicians involved have a long and healthy relationship with Markham Stouffville Hospital and the local specialist community. Markham FHT will continue these relationships and entrench the positive attributes of the relationship that serve our patients so well.