Management Team

Black and white square portrait of John O Toole

Dr John O’Toole

Chief Executive Officer

John has over a decade of experience in medical leadership. Prior to joining DermCo, John worked as Director of Medical Services at St John Urgent Care, charged with overall responsibility for the design and implementation of a new Urgent Care model. Over a 6-year span, John helped propel this model to a medical business with over 500 staff, catering to 150,000 Urgent Care patients, 240,000 GP patients and 60,000 Dental patients annually. In 2019, the success of the model attracted $28m of Federal funding for the roll out of further Urgent Care Centres, with John acting as project lead.

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John graduated a Foundation Scholar of Trinity College Dublin, where he came first in his class in Medicine, Psychiatry and General Practice. During his undergraduate and postgraduate clinical training, he was awarded the Sir James Craig Memorial Prize for Medicine, the Meath Medal for Clinical Excellence, the Connolly Norman Medal for Psychiatry, and the DeRenzy Centenary Prize for General Practice among other awards. John is a Fellow of the Royal Australian College of General Practitioners and a Member of the Australian Institute of Company Directors.
Black and white square portrait of Sally Keller

Sally Keller

Chief Financial Officer

Sally brings expert financial and strategic knowledge to the group, as well as extensive industry knowledge from the corporate medical sector. Sally has previously worked as head of mergers and acquisitions at Healius, an ASX listed company, where she oversaw the annual acquisition of over a dozen GP practices nationwide. Prior to this she worked as CFO of Johnson & Johnson Asia Pacific’s Hospital Business. More recently she was the CFO of Pollination, an asset management and advisory business.

Black and white square portrait of Michelle Evans

Michelle Evans

Executive Assistant

Michelle is a critical conduit for much of DermCo’s head office operations. She will help to direct traffic as we grow to a nationwide footprint. Michelle has extensive experience in the Medical Sector, having led the recruitment, rostering, and relationship management of a team of over 150 doctors during her 6 years at St John WA. Prior to this Michelle worked in blue collar recruitment at Chandler Macleod.

Black and white square portrait of Tim Haggett.

Dr Tim Haggett

Executive Director

Following an early career in general practice Tim established, led and successfully exited two highly innovative healthcare companies that focused on primary care and occupational health. He was an early stage investor and is a long standing non-executive director of Ireland’s largest private primary care provider. He has experience at divisional CEO level of an ASX 200 healthcare company. Most recently he co-founded and is a non-executive director / chair of a rapidly growing online wellness business focused on obesity management.

Black and white square portrait of Martin Black

Dr Martin Blake


Martin is a Radiologist and Nuclear Physician and brings a wealth of technical and industry experience to DermCo. He is a Fellow of the Australian Institute of Company Directors, holding directorships on several private and public company boards. Martin is currently chairman of Resonance Health Ltd (ASX:RHT) and recently retired as chairman of Perth Radiological Clinic, a position he held for 12 years.

Martin is a business development professional graduated from the University of Melbourne – Melbourne Business School, is a practicing radiologist, has over 20 years of experience and insight into healthcare M&A and brings skills in innovation and technology commercialisation.

Black and white square portrait of Michael Collins

Michael Collins

Company Secretary

Michael is a Chartered Accountant with over 25 years experience providing advice and guidance to businesses of all stages and sizes including start up, growth, M&A, sale and listing. Michael is the managing director of Flinders Financial Group and holds a number of advisory board and non-executive directorships, including the Regents Garden Group.

Michael is a Fellow of the Institute of Chartered Accountants, Fellow of the Taxation Institute of Australia, a Registered Tax Agent and a member of the Australian Institute of Company Directors.