GWP (Bill) Davison DC., DO., NY. is one of the nation’s leading authorities on Wholistic Health Care. He is a Chiropractor, Osteopath and a Naturopath. He has practiced since December 1977 and is the director of the Wholistic Health and Wellness clinic in Gymea NSW Australia. The clinic treats a wide variety of conditions using a broad range of therapies, which include Chiropractic, Osteopathy, Naturopathy, Nutrition, Acupuncture, Herbalism, diet and lifestyle management.

He created “WHOLISTIC INTEGRATED NATURAL SYSTEMS” (W.I.N.S.) which is a combination of many different clinical diagnostic and treatment methods. This is presented in seminars to health professionals.

Bill Davison is the founder of the ACADEMY OF TOTAL PERSONAL DEVELOPMENT, which gives seminars on health, motivation, and personal development. He has authored a number of books and articles as well as producing audio and video tapes. He has lectured interstate and overseas and is a past lecturer of the Sydney College of Chiropractic.

During his Chiropractic and Osteopathic studies he was the first student to receive “Student Of the Year” for all of the three years it was awarded. He was also the first to receive both awards for Practical and Academic best student in the final year.



Elizabeth Graduated from Macquarie University in 1999 with a Bachelor of Science and in 2001 with Masters of Chiropractic.  The ten years prior to this was in the massage and sports medicine industry.  She is a partner of Shire Chiropractic and has studied the W.I.N.S. (Wholistic Integrated Naturopathic Systems) extensively under the guidance and founder, Bill Davison, her father.

She has obtained a Graduate Diploma in Acupuncture and has completed numerous post-graduate studies in Nutrition, Biomedicine, Retained Neonatal Reflexes, Pediatrics and Disorders of Pregnancy.

Elizabeth grew up in the Chiropractic and Wellness paradigm and knows from experience the beneficial role this plays in the lives of infants to the elderly.  What we eat, how we move and how we think ensures good health throughout the years.

Her clients range from newborn babies, those with learning difficulties and developmental delay to women’s health including hormone imbalance and pregnancy.  Includes families and sporting enthusiasts requiring optimal spinal health and nutrition.  She also cares for the more mature client with advanced degeneration requiring very gentle adjusting techniques and rehabilitation.  She deeply respects the role she plays in the care of her patients.

Techniques include Applied Kinesiology, Activator, Drop Piece, Manual and gentle adjusting, Decompression Therapy, Acupuncture, Nutritional Analysis, Vega Analysis, Metabolic Typing, Hair Mineral Analysis, WINS, and is Kryptopyrrole literate.

Elizabeth is a member of the Chiropractors Association of Australia, she is a Workcover, MVA and DVA trained provider.



Dr Katie O’Sullivan is a warm and caring person who graduated with a bachelor of chiropractic science and a masters degree in chiropractic in 2004.
Katie is a chiropractor with extensive clinical experience and has a wide and varied clientele with people of all ages and levels of care. She has worked with athletes on tour overseas and in Australia and has also written an anatomy course and training manual used in massage colleges across sydney.
Katie is a member of the Chiropractic Association of Australia and NSW, she is also a workcover, DVA and motor vehicles trained provider.
Katie uses a vast array of techniques tailored to the clients needs, these include applied kinesiology, activator, drop piece, manual adjusting, decompression therapy, dry needling acupuncture, nutrition and herbal medicine.



Simon started out as a Sport and Remedial Massage Therapist, before deciding to undertake a Bachelor and Masters of Chiropractic at Macquarie University. Due to his previous occupation, Simon enjoys dealing with sports injuries, and has an extensive background with football.

His interests and treatments are also focused on treating the body as a whole – structurally, biochemically and mentally to insure a comprehensive assessment as well as a complete treatment strategy to optimize health and wellness.

His structural treatment approach includes chiropractic adjustments and mobilization, soft tissue (muscle, tendon and ligament) techniques, exercise therapy, stretching, and organ manipulation.

The Biochemical area includes testing and treatment for allergies, nutritional deficiencies, yeast and candida problems, weight control, energy issues, hormonal balancing and many other health issues.

The Mental/Emotional aspect includes stress management and other lifestyle advice.He has studied extensively (and continues to do so) with Dr Bill Davison one of the nation’s leading Wholistic Health Practitioners

Simon has grown up on the Central Coast and enjoys the coastal lifestyle. His interests include football, surfing, travelling and reading (mainly research to keep up to date).

Simon is a current member of the Chiropractors Association of Australia (CAA)..

Paul WinklerTeam