Mr Mike Horan AM (Chair)

Mr Mike Horan AM (Chair)

As well as being the Chair of our Board, Mr Mike Horan also holds the following positions:

  • Chair, Board Executive Committee
  • Board Member, Toowoomba Hospital Foundation
  • Queensland Hospital and Health Board Chairs’ Forum Representative,  Investment Assessment Committee.

Mike was the Member for Toowoomba South in Queensland Parliament from 1991 to 2012.

During his political career, Mike served in the following roles:

  • the Minister for Health
  • leader of the National Party
  • leader of the Opposition
  • Shadow Attorney-General
  • Shadow Minister for Police, Health, and Primary Industries.

Mike has also held the following positions:

  • Inaugural Chair, Queensland Hospital and Health Board Chairs’ Forum
  • Secretary, Darling Downs sub-chamber of Agricultural Societies
  • Secretary, Downs Harness Racing
  • Secretary, Toowoomba Greyhound Racing Club
  • General Manager, The Royal Agricultural Society of Queensland (Toowoomba Showgrounds)
  • Board Chair, Downs Rugby Ltd
  • Board Member, Toowoomba Police Citizens Youth Club, Icon Cancer Care and Village on the Downs.

During his time as Minister for Health, he achieved the following:

  • establishing the Surgery on Time System
  • introducing a 10 year Mental Health Plan
  • implementing a major capital works program.

Targets for breast screening and children’s immunisation were also set and achieved.

Dr Dennis Campbell (Deputy Chair)

Dr Dennis Campbell (Deputy Chair)


As well as being Deputy Chair of the Board, Dr Dennis Campbell also holds the following positions:

  • Board Chair, Finance Committee
  • Member, Board Executive
  • Member, Board Audit and Risk Committees
  • Deputy Chairman, Board of Heritage Bank
  • Trustee, Queensland Museum Foundation
  • Chairperson, Management Advisory Committee of the Cobb & Co Museum Toowoomba.

Dennis was awarded an Australia Day Achievement Medallion for services to the Australian College of Health Service Executives in 2007.

In 2008 he was awarded the Gold Medal for Leadership and Achievement in Health Services Management.

This was to recognise his contribution and professional achievements in shaping healthcare policy at the institutional, state and national levels.

Dennis has also held the following positions:

  • CEO, St Vincent’s Hospital, Toowoomba
  • Assistant and Acting Regional Director, Queensland Department of Health
  • Corporate Director, Legal Aid, Queensland.

Dr Ross Hetherington (Member, Southern Downs)

Dr Ross Hetherington


As well as sitting on our Board, Dr Ross Hetherington is a member of our Board Executive and Board Safety and Quality Committees and holds the following positions:

  • Board Chair, RHealth
  • Chair, Rural Health Workforce Australia,
  • Foundation member, Regional Health Board, Longreach
  • Board member, Health Workforce Queensland
  • Board member, Australian General Practice Accreditation Limited
  • Member, Aviation Medicine Society of Australia and New Zealand.

He was also a foundation member of the Menopause Society of Australasia.

Ross co-founded the Central Queensland Rural Division of General Practitioners.

He holds a number of aviation and medical memberships, and is a Designated Aviation Medical Examiner (DAME).

Ross has held previous directorships with Australian General Practice Network (AGPN) and the Australian Rural and Remote Workforce Agency Group.

Trish Leddington-Hill (Board Member, Western Downs)

Trish Leddington-Hill


As well as sitting on our Board, Ms Trish Leddington-Hill also holds the following positions with Darling Downs Health:

  • Chair, Board Safety and Quality Committee
  • Member, Board Audit and Risk Committee.

Trish was appointed to the Darling Downs Hospital and Health Service Board in November 2012.

She also works as a part time Executive Manager for RHealth, and in a part time coordinator role supporting the Western Qld Primary Health Network (WQPHN).

In her current role, Trish manages teams supporting the mental health needs of Darling Downs residents. She also supports the WQPHN Business and Commissioning Support Unit.

Trish held a number of roles in the rural sector before joining RHealth in early 2002.

She was responsible for coordinating and managing projects for allied health, mental health, aged care, quality use of medicines, health promotion and integration.

Marie Pietsch (Board Member, Southern Downs)

Marie Pietsch


As well as sitting on our Board, Ms Marie Pietsch also holds the following positions with Darling Downs Health:

  • Member, Board Finance Committee
  • Member, Board Audit and Risk Committee.

Marie has extensive healthcare experience across the Darling Downs region and has held positions on numerous councils and committees.

These include Chair of the Minister’s Rural Health Advisory Council and Chair of the Southern Downs Health Community Council.

Marie also holds the following positions:

  • Chair, Inglewood Community Advisory Network
  • Member, Inglewood Multipurpose Health Service Management Committee
  • Member, Australian Institute of Company Directors (AICD).

Marie's leadership and networking skills were acknowledged in 2003 with a Centenary Medal for distinguished service to the community.

Marie also received an Australia Day Achievement Medallion for outstanding service to Queensland Health.

In 2014 Marie was awarded Citizen of the Year by the Goondiwindi Regional Council for services to the community, especially in health.

Dr Ruth Terwijn (Board Member, Toowoomba)

Dr Ruth Terwijn

RN, MNurs (Hons), PhD

Dr Ruth Terwijn is also member of the Board Executive and Safety and Quality Committees.

Ruth is a registered nurse and academic who started her nursing career at St Vincent’s Hospital, Toowoomba.

She worked with Family Planning Queensland in clinical, educational and managerial roles. It was during this time Ruth completed an Advanced Practice Nursing in Sexual and Reproductive Health course and a Master of Nursing (Hons).

After many years at Family Planning Queensland (FPQ), she changed her focus to become a lecturer of nursing at USQ.

Ruth worked closely with nursing students who held a Permanent Humanitarian Visa.

In 2015, she completed her PhD with a critical research study of the experiences of English as an additional language (EAL) and international nursing students.

Professor Julie Cotter (Board Member, Toowoomba)

Professor Julie Cotter

PhD, BCom(Hons), FCPA, CA, GAICD

Professor (Emeritus) Julie Cotter is also Chair of the Board Audit and Risk Committee and a member of the Board Finance Committee.

Julie is a chartered accountant and a Fellow of CPA Australia and holds the following positions:

  • Chair, Australian Institute of Company Director’s (AICD) Toowoomba Regional Committee
  • Member of Exercise and Sports Science Australia’s (ESSA) National Board, and Chair Audit, Finance and Risk Committee
  • Chair, Farming Technology Group, Stahmann Webster Pty Ltd.

She's held senior management positions at the University of Southern Queensland (USQ), including Head of School and Research Centre Director roles.

Julie has also held the following positions:

  • Member, West Moreton Hospital and Health Board, and Chair Audit and Risk Committee
  • Member, Toowoomba and Surat Basin Enterprise (TSBE)
  • Independent Member, Department of Education Audit and Risk Management Committee
  • Director, Australian Centre for Sustainable Business and Development.

During Julie’s time at USQ she was a member of many university wide management boards and committees contributing to strategic and operational management of the University.

Cheryl Dalton (Board Member, South Burnett)

Cheryl Dalton

Ms Cheryl Dalton is a member of the Board Audit and Risk and Board Finance Committees.

She is also the Chief Executive of SBcare, a not for profit aged and disability service. She works closely with and advocates for the community and social service sector.

Cheryl has extensive governance experience gained in her 16 years as a local government Councillor in the South Burnett.

She's also a long standing member of the Department of Natural Resources and Mines Panel.

Professor Maree Toombs (Board Member, Toowoomba)

Professor Maree Toombs


Professor Maree Toombs is also a member of the Board Safety and Quality Committee.

Maree is an Aboriginal woman with cultural linage to the Kooma people of Western Queensland and Euahlayi People of North Western New South Wales.

She was the first Aboriginal person to be awarded a PhD from the University of Southern Queensland.

Maree is the Associate Dean (Indigenous Engagement) for the Faculty of Medicine at The University of Queensland. Her focus is on implementing their Reconciliation Action Plan as well as ensuring the continued support of Indigenous students at the University.

Maree is recognised nationally and internationally for her research work around mental health outcomes for Aboriginal people with multiple comorbidities.

She also holds the following positions:

  • Member, Expert Advisory Committee for Indigenous Health to the Medical Deans of Australia and New Zealand
  • Chair, Board of Directors at Carbal Medical Services.

Maree is a Churchill Fellowship recipient with over 20 years’ experience teaching and developing curriculum relating to Indigenous education and health.

Maree has published several journal articles related to improving the way people culturally work with Indigenous Australians in regional and remote areas.

She is also the co-author of ‘Indigenous Australians and Health’ published by Oxford Press.

Last updated: March 2022