Our Team

Your Chiropractors

Your Chiropractors at Essential Health Chiropractic are committed to provide an enjoyable, vibrant and relaxing atmosphere to cater for all different ages. With our fun kids area, our educational tools, our friendly staff and professional Chiropractic doctors, we aim to create the right environment to promote wellbeing. We are passionate about serving the community and helping to create happier and healthier  individuals.

Dr. Gerald Vargas – Chiropractor


Dr. Gerald, the principal and founding Chiropractor at Essential Health Chiropractic brings his knowledge and passion for functional and integrative Chiropractic care to assist individuals to function at their very best. His motivation and drive to further Chiropractic and natural medicine came from his own health challenges early in life. At 16 years of age, he was diagnosed with a severe inflammatory disorder of the bowel, called Crohn’s disease.

This spurred his own search for solutions to regain his health, which he found through Chiropractic. His passion for working with children and patients with ‘challenging health issues‘ inspires him to continue to do what he does.

Dr. Gerald studied at Sydney University where he obtained his Bachelor of Medical Science Degree. He then went on to receive his Masters of Chiropractic from Macquarie University graduating in 1998.

Following his Chiropractic studies, he then continued his education with training in Acupuncture and Biomesotherapy. In 2003, he travelled to the U.S. to undergo further studies and examination to receive certification in Neuro-Emotional Technique (NET).

During 2006,  he was awarded Advanced Certification in Sacro-Occipital Technic (SOT). He also became certified in the Webster’s Technique, which is a technique which may be helpful for pregnant women throughout pregnancy.

In 2008, Dr. Gerald was awarded by the board of SOTO-Australasia the title of “Certified Craniopath” which is a rare and distinguished honour.

He currently serves on the board of examiners for SOTO-Australasia and is a past-President for the organisation. He is on the teaching committee as a “Primary Educator” for SOTO-Australasia, teaching SOT to Chiropractors both locally and internationally. Gerald is also a regular speaker at SORSI (Sacro-Occipital Research Symposium International) in the USA at their annual international conference. He is also a regular examiner at the International Certification examinations in San Diego for Neuro-emotional Technique (NET)



MONDAY  7.30 – 12.00PM 3.00 – 7.00PM
TUESDAY 7.30 – 12.00PM 3.00 – 7.00PM
THURSDAY 7.30 – 12.00PM 3.00 – 7.00PM
FRIDAY 7.30 – 12.00PM 3.00 – 7.00PM

Dr Melanie Unsworth – Chiropractor

Dr Melanie studied at the University of New South Wales where she obtained her Bachelor of Science. She then went on to receive her Masters of Chiropractic from Macquarie University in 1999.

Dr Melanie continued to further her studies at a post graduate level, obtaining Advanced Certification in Sacro Occipital Technic (SOT) as well as Certification in Applied Kinesiology (AK) & Retained Neonatal Reflexes (RNR). Dr Melanie has also in recent years been awarded her Diplomate of Chiropractic Paediatrics, a rare honour. She has also completed studies in Neuro Emotional Technique (NET) & Activator Methods. Dr Melanie is currently in her final year of her Naturopathic & Nutrition studies to further enhance her passion in natural health.

Dr Melanie is currently a table educator for SOTO Australasia & has has previously been an examiner for SOT.

Dr Melanie was introduced to chiropractic as a child when out of desperation, her parents turned to their local chiropractor to assist in the care of her chronically ill mother when the medical system told her their was nothing else they could do. The change in her mothers health was nothing short of amazing & as a result her entire family started care. Her parents embraced the chiropractic lifestyle & Melanie’s passion for chiropractic was born.

As a mother of five, stepmother of two & grandmother of two, Dr Melanie has a passion for family wellness care. Having lived in the Hills for over 20 years & raised her family here, Dr Melanie loves being able to assist other members of this great community to achieve their health goals & their goals for their family. Being entrusted to care for a child is such an honour that I appreciate daily.

Dr Melanie is thrilled to be working with the team at Essential Health Chiropractic to enable her to continue to provide with love, dedication & passion, the very best of health care to those in The Hills.


TUESDAY 7.30AM  – 12.00PM 3.00 – 7.00PM
THURSDAY 3.00 – 7.00PM
FRIDAY 7.30AM – 12.00PM
SATURDAY 8.30 – 12.00PM

DR Jonathan Moore – Chiropractor


Dr Jonathan studied Chiropractic at Macquarie University where he obtained his Bachelor of Science degree, followed by a Masters in Chiropractic, in 1999.

His interest in the impacts of stress on health, paediatrics and neurodevelopment of children has led him to continue his education in this field. This has included completing training in Torque Release Technique (TRT), Sacro-Occipital Technic (SOT), Neuro-Impulse Protocol (NIP), Applied Kinesiology (AK) and Retained Neonatal Reflexes (RNR) protocols. In addition to these, in 2013, he became the first Chiropractor in Australia to be certified as a Craniosacral Therapist (CST), trained through the Upledger Institute.

In 2015, Dr Jonathan was certified as a ’Master Coach’ and developed an online coaching business. This accolade has allowed Dr Jonathan to speak on many topics including “Brain Hypertrophy & Neurological Maladaptation”, which was broadcast to an audience of over 200,000 listeners.

In 2009-11 Jonathan and the late Sue Larter (Behavioural Optometrist) co-developed a school-based program for teachers called Empowered Education.

Dr Jonathan has worked both in the Hills area for many years, but also in Griffith, country NSW. He has owned and run a successful Chiropractic practice, and continues to contribute to the Chiropractic profession.

He is excited to join the Essential Health team, and to work alongside a team of great practitioners and amazing support staff.



MONDAY 9.00 – 12.00PM 3.00 – 6.00PM
WENESDAY 9.00 – 12.00PM 3.00 – 7.00PM
FRIDAY 9.00 – 11.00AM


Our Management staff & Assistants

Greta Vargas – Operations Manager


Greta brings with her a wealth of experience, spanning 25 years including, insurance law, risk management and compliance. Her background in the corporate world has served her well, bringing an innate ability to streamline systems, increase effective productivity and motivate the CA’s . All the while, remaining relatable to the patients in the clinic, particularly the families. Being a mother or four, ranging from 13 years to 6 years, and having a very strong interest in wellness care, with it being an integral part of her family’s life. This together with a keen interest in Essential Oils makes her a perfect advocate for our practise – with her ‘walking the walk’.

Greta is Operations Manager for Essential Health Chiropractic and has been spearheading the establishment of our second practice in Kellyville. Her aim is to make your experience at Essential Health second to none.

Nerys Ogilvie – Chiropractic Assistant


Nerys feels very excited to be part of the team at Essential Health Chiropractic and enjoys being able to meet and get to know our wonderful patients.  She has a background in administration and has worked as a CA for over 10 years.  She was first introduced to chiropractic when her now 23 year old son was a baby suffering from reflux.  He had wonderful results from his treatment and since then Chiropractic has been an integral part of her family’s health care – in fact 4 generations of my family currently receive adjustments from our Chiropractors here at Essential Health Chiropractic.

Outside of work, I love to spend time with family and friends, especially my beautiful granddaughter!  I also enjoy travelling and experiencing different countries and cultures.

Nadine Cooney – Chiropractic Assistant


Nadine being one of the newest members of a team in 2021, feels very delighted to be working at Essential Health Chiropractic. Having a previous background in accounts management, she saw that her strengths was in direct customer service. She feels privileged to be working in such an open and supportive environment.

Nadine is a proud mum of two children, Daniela and Jared, and has the support of her loving husband Steven. Originally born in South Africa she migrated to Australia in 2009, together with her husband and two small children.

Nadine loves to have a good laugh, loves animals, enjoys her morning walks and loves entertaining family and friends. Her attention to her faith is important and she loves volunteering at her local church.

She has recently taken up crafting as a new hobby, and to the delight of her family, nothing is safe from being labelled or crafted. She is excited to be able to serve the patients and team members of essential health chiropractic with her loving and kind disposition.

Tiana Tawfik – Chiropractic Assistant


Tiana is in her second year of studying Chiropractic Sciences at Macquarie University. As a Chiropractic student, Tiana is grateful to be working in an environment that provides her with a further understanding of the benefits of holistic care. She feels very fortunate to be able to have first hand experience inside of a Chiropractic clinic.

Tiana has seen the results and positive impact Chiropractic has had on our patients lives and is excited to be able to one day pursue this career path. She enjoys watching our very skilled and highly trained Chiropractors and is learning so much everyday.

Tiana is excited to get to know patients and assist them throughout their health journey. Outside of work, she enjoys spending time with family and caring for her two pet beagles.