Board and Management

Dr German Arango

Chief Executive Officer

Dr Arango is the CEO and co‐founder of ImExHS and has over 12 years’ experience as a practicing Radiologist in Colombia. Dr Arango is currently the Ex‐Chair Staff Radiologist, Neuroradiology at Mederi – Hospital Universitario Mayor, Bogota Colombia and Chair Radiologist and shareholder of UT Imagenes Diagnosticas La Misericordia, Barranquilla Colombia and has practiced as a Radiologist in various hospitals and clinics in Colombia.

Dr Arango was the Associate Professor of Diagnostic Neuroradiology for the neurology and neurosurgery residency programs for Universidad El Rosario at Mederi – Hospital Universitario Mayor from 2010 to 2017 and has been held various Associate Professor of Diagnostic Neuroradiology roles for Universidad Miltar de Colombia, Fundacion Universitaria de Ciencias de la Salud, Universidad Nacional de Colombia and El Bosque University during the period from 2006 to 2012.

Dr Arango holds a Degree in Medicine and Surgery from Universidad El Bosque, Colombia, Specialization in Radiology and Diagnostic Imaging from Universidad de La Sabana, Colombia and has completed a fellowship in Diagnostic Neuroradiology at McGill University (Montreal, Canada), and a visiting fellowship in Neuroradiology at Medical College of Georgia Hospital (Augusta, United States).

Andres Vanegas

Chief Sales Officer

Mr Andres Vanegas is the Chief Sales Officer and co‐founder of ImExHS. He is a mechatronic engineer (mechanical and electronic engineering) with over 12 years’ experience in medical imaging in PACS, RIS and digitalization (computed radiography, direct radiography). Mr Vanegas has undertaken training related to medical imaging IT solutions in Japan, USA, Brazil and Spain.

Mr Vanegas has a strong technical and commercial background from his time managing the Technical department in Colombia for Fuji Film, one of the major players in the global RIS PACS market. During his time at Fuji Film Mr Vanegas was involved in the planning and implementation of RIS PACS solutions across LATAM.

Mr Vanegas holds a bachelor of Mechatronical engineering, a post‐graduate diploma in project management, a post‐graduate diploma in customer service management and multiple technical courses in imaging quality in RIS and PACS systems, post‐processing quality imaging and IT solutions for PACS.

Tony Thomas

Chief Financial Officer

Mr Tony Thomas is the Chief Financial Officer of ImExHS. He has a Bachelor of Financial Administration and is a member of Chartered Accountants Australia and New Zealand. Mr Thomas has held Chief Financial Officer roles at both start‐up and long‐established companies, covering financial services and technology start‐ups.

Mr Thomas also has experience in Chief Operating Officer, Chief Information Officer, company secretary and programme management roles

Dr Jorge Marin

Chief Medical Officer

Dr Marin is the Chief Medical Officer and co‐founder of ImExHS. Dr Marin has over 16 years’ experience as a practicing radiologist in Colombia and Spain. He is currently neuro‐radiologist at Hospital Universitario San Jose in Bogota and previously the chief radiologist for CETIR Teleradiology group in Barcelona, Hospital Dos De Mayo in Barcelona and Hospital San Rafael in Bogota.
Dr Marin is a member of the IMAGINE Research and Development group for advanced diagnostic imaging at the Los Andes University in Bogota. He is also an assistant professor of diagnostic neuroradiology for the neurology, radiology and neuro surgery residency programmes at FUCS University in Bogota.
Dr Marin holds degree in medicine and surgery from Universidad Pontificia Bolivariana in Medellin and a Specialization in Radiology and Diagnostic Imaging from Universidad Nacional de Colombia. Dr Marin has also obtained the European Diploma in Neuroradiology, from ESNR.

Tom Pascarella


Mr Pascarella is currently a Partner with Allen Partners in Sydney, a boutique advisory firm which specialises in raising institutional capital for local and offshore fund managers, as well as providing Corporate Finance and M&A advisory services to SMEs, fund managers, start-ups and scale-ups. 

The majority of Mr Pascarella’s career has been in various relationship management, transaction origination and senior leadership roles in Corporate & Investment Banking; most recently as CEO and Managing Director of Bank of America N.A. Sydney Branch / Bank of America Merrill Lynch Australia. Prior to Bank of America, He was a Senior Banker in Media, Telecoms & Entertainment with Banque Paribas (Sydney and Singapore). Tom has qualifications from Princeton University and Oxford University, and is a fellow of FinSIA, and a Member of the Australian Institute of Company Directors. 

Mr Pascarella has been the President of the American Chamber of Commerce in Australia, a Board Member and Chairman of the dual-Government entity the Australian-American Fulbright Commission and Chairman of the ASX listed Agricultural Land Trust during its successful restructuring from Elders Ltd. 

Carlos Palacio

Non-executive Director

Mr Palacio is an entrepreneur with over 27 years’ experience in international IT, Telecommunications and strategic management. He is currently CEO of CrossPoint Telecommunications, a Managed IT services provider (MSP), specializing on creating and managing cost‐effective IT solutions for multinational organisations. CrossPoint currently provides services in 42 countries and employing 54 staff in Australia, Singapore and Philippines.

Mr Palacio had a long career with Nokia where he served in a number of roles including Regional Network Manager, Chief Specialist and Architect, Technology Advisor in Mergers and Acquisitions, Global Platforms Design and Planning and Global Program Manager. Mr Palacio worked for Nokia Networks Australia, Singapore and Finland at various stages of his Nokia career, but was largely based in Australia.

Mr Palacio holds a Bachelor of Electrical Engineering with a major in Telecommunications from the University of Technology Sydney, a post graduate Diploma in Management from Macquarie University, a Master of Business Administration from Macquarie University and he has completed multiple technology and management development courses.

Dr Douglas Lingard

Non-executive Director

Dr Douglas Lingard is an experienced Radiologist and Nuclear Physician who has worked in various leadership roles in Auckland, Washington DC and Sydney. In Australia he was a co-founder of Pittwater Radiology Partners which after a series of mergers and acquisitions listed on the ASX in mid-2000 as Medical Imaging Australasia Ltd (MIA) and became the largest supplier of radiology services in Australia and a major supplier of diagnostic imaging to the NHS in the United Kingdom. In mid-2004, MIA was acquired by DCA Group Ltd for A$700m to become one of the world’s largest radiology businesses, and the leading practice in Australia known as I-Med.

Doug has a medical degree MB.ChB from Otago University, NZ, and was a National Institutes of Health Fellow in Washington DC.  He is presently a Fellow of the Royal Australia & NZ College of Radiologists, a Senior Associate of FinSIA and a member of the Australian Institute of Company Directors. He is the founder and present Chairman of the Mito Foundation, the peak charity in Australia for people with mitochondrial disease.

Howard Digby

Non-executive Director

Mr Howard Digby brings over 25 years management experience in technology and information services including senior roles at IBM, Adobe, Gartner and The Economist Group in numerous countries.

Mr Digby has served as a director and chairman on several ASX listed company boards and is currently a director of 4DS and Elsight Limited. Mr Digby holds a Bachelor of Engineering (hons) from the University of Western Australia.

Peter Webse

Company Secretary

Mr Peter Webse is Managing Director of Platinum Corporate Secretariat, a firm specialising in provides company secretarial, corporate governance and corporate advisory services to ASX companies.