Our Team

Dr Tania Ash – Principal Integrative Medical Doctor

Dr Ash is now on extended leave of not less than 6 months due to her health issues and personal reasons. Everybody at Vitality Hub wishes her all the best on her recovery journey and look forward to her returning in the New Year.


Dr Tania Ash, MB BS , FRACGP, FAAAM, is a clinician, teacher, lecturer and leader in her field in Australia. She holds a medical degree from Melbourne University, a fellowship with RACGP and a fellowship in Integrative Medicine with A5M.

Dr Tania Ash lectures for the Australasian Academy of Anti-Aging medicine (A5M), and is a sought-after speaker, having been regularly invited to speak with the annual Australasian Anti-Aging Conference and the Gawler Foundation. Tania has spoken on wide-ranging topics such as Bioidentical Hormone Therapy, the Optimal Anti- Aging Diet, Chronic Fatigue Syndrome and Adrenal Fatigue. Tania is a media liason doctor for the A5M and has appeared on well-known television programmes such as Today Tonight and been sought after for opinions for such publications as the Herald-Sun and Australian Women's Weekly.

Dr Ash is renowned for frequently providing the final port of call for her clients by addressing the root causes of her clients’ chronic illnesses and creating a comprehensive management plan, that includes boosting energy production on a cellular level, as well as correcting nutritional and hormonal deficiencies to optimal levels.

Dr Ash has special interests in working with bioidentical hormones for documented hormone deficiencies including for the menopause and andropause, effectively treating thyroid and auto-immune disease, chronic fatigue syndrome and fibromyalgia plus irritable bowel syndrome, women's health issues,as well as the biochemistry of and biomedical intervention in depression and other mental illness and autism, assisted by her extensive training with the US Pfeiffer clinic.

Above all, Dr Ash is committed to empowering her clients to have vitality breakthroughs and to extend longevity with quality of life.


Dr Oscar Serrallach

Dr Oscar Serrallach qualified from Auckland Medical School N.Z.  in 1996 before coming to Australia in 1998.Having worked in a variety of fields including Psychiatry , Aboriginals Mens Health and Addiction Medicine Oscar worked as a CMO in Emergency medicine for several years before discovering the world of Wellness based medicine through N.E.M. and Functional medicine.

 He has a special interest in Post Natal Recovery but enjoys all types of Wellness based medicine.He is currently doing post graduate training in the Shoemaker Protocol to assist CFS patients with biotoxin illness.



Dr Sanjeevan Xavier

Dr Sanjee Xavier is a caring and thorough GP with a passion for Integrative Medicine. He believes in the importance of treating root cause of health issues and has a team based approach with other health practitioners. He has a holistic approach with emphasis on optimising lifestyle aspects.

Sanjee graduated from The University of Auckland in 2004. He completed his internship in Melbourne and then worked in Emergency Department over the East coast of Australia. Sanjee moved to Western Australia in 2006 and soon after started working in Psychiatry and Addiction Medicine. He then completed his RACGP training and discovered his passion in Integrative Medicine.

Sanjee enjoys nature, travelling, yoga, meditation and maximising wellbeing.

He has done training with ACNEM, A5M, ACNM, SIBO.test, Bioscreen, Shoemaker/ CIRS protocols and Biobalance.

His special interests include breathwork, biophysical therapies, mental health/ addiction and biotoxin (mould) illness.


Dr Laurena law –  Integrative Medical Doctor

Dr. Laurena Law qualified from Newcastle University, Australia in 1998. She combines functional medicine principles in nutrition, exercise, laboratory testing, supplements, detoxification programs and stress management techniques personalized to the individual.

She believes in promoting health which goes beyond just the absence of disease. Optimizing metabolic, hormonal and physiological function has helped many of her patients in improving sleep, energy, fat loss, chronic pain, injuries, recurrent infections, skin disorders, autoimmune diseases as well as a reducing their need for long-term drug therapy.

In addition to clinical practice she is also an educator and presenter to both doctors and the public on topics related to hormonal health, fat loss, nutritional supplementation, detoxification, stress management, integrative approach to ageing skin and intravenous use of high dose vitamin C. She is certified by both the Australasian College of Nutritional Medicine (ACNEM) and The Australasian College of Medical Nutrition (ACMN) on the use of intravenous nutrients and is a member of the American Association of Antiaging Medicine (A4M), Australasian Integrative Medical Association (AIMA) and ACNEM.


Adrian Harper – Naturopath

Adrian Harper is a qualified Naturopath specialising in clinical nutrition and herbal medicine. He combines evidence-based medicine with traditional naturopathic principles, drawing upon the following modalities:

  • Herbal Medicine
  • Clinical Nutrition
  • Food as Medicine
  • Lifestyle Counselling
  • Mindfulness & ACT Therapy

Adrian is focused on empowering individuals to take control of their own health through practical diet andlifestyle strategies. A former chef, he is passionate about the impact of food on our health and wellbeing; and enjoys working with people to create therapeutic and satisfying diets.

With clinical experience in a broad range of health conditions, Adrian has a particular interest in the following areas:

  • Mental Health, Stress and Fatigue
  • Chronic Immune Conditions
  • Men’s Health
  • Digestive Health
  • Kidney and Urinary Conditions

Adrian will familiarise himself with your health and lifestyle, and utilise a range of naturopathic diagnostic techniques to gain a comprehensive assessment of your health and wellbeing. Using this knowledge, he will work collaboratively with you, and other health specialists as needed, to develop an effective and integrative wellness plan that will enable you to achieve your desired health goals.

Adrian holds a Bachelor of Health Science in Naturopathy graduating from the Southern School of Natural Therapies. He is a member of the National Herbalists Association of Australia (NHAA).


Kathryn Arnel, B.Hsc (Nat)

Kathryn Arnel is a qualified Naturopath and Nurse.  She started her career in Nursing in 1987, initially working with both adults and children.   After many rewarding years Nursing at the Royal Children's Hospital she retrained and studied Naturopathy, Nutrition and Herbal Medicine and now works exclusively as a Naturopath, Nutritionist and Herbalist.  This is where her keen interest in illness prevention and health promotion can be fully realised. 
Kathryn draws on both her Natural Medicine and Nursing experiences to bring a wholistic approach to the heath care of her patients.  Using the best of modern testing capabilities, she uses functional pathology testing and is qualified in DNA profiling, Live Blood Analysis and Bioimpedance analysis.  She is also trained in Anaphylaxis management and allergy testing. Her aim is to give symptomatic relief to patients whilst endeavouring to find the cause of their health care problems.  It was this focus that lead her into the recognition, training and treatment of tick borne illnesses. 

Kathryn uses natural medicine to help the body heal.   Imbalances and deficiencies are treated with nutrition, herbal medicine and nutritional supplementation, to enhance the body’s intrinsic healing ability.  She specialises in the treatment of allergies, digestive problems, chronic fatigue, Candida, hormonal imbalances, autoimmune illnesses, thyroid and adrenal problems, anxiety and depression.


Oscar Moreno - Chinese Medicine Doctor (TCM)

Oscar is a skilled practitioner of Chinese medicine and acupuncture, greatly experienced in the treatment of a wide range of disorders. After being in general practice for a number of years, he has acquired a particular interest in chronic and difficult-to-treat diseases, with a focus on digestive disorders, fertility issues and mental health.

Oscar uses a complete, holistic system by focusing on how the body-mind-emotions-diet-lifestyle interactions affect our health or disease states, and he emphasises this approach in treating chronic problems.


He is particularly interested in the role that emotional issues play in digestive problems and brings the potential of this ancient, eastern, holistic approach to help alleviate mental ailments.


He also focuses strongly on Chinese medicine dietary therapy, a timeless form of dietetics that focuses not only on the right foods to eat for a particular condition, but also takes into account the seasons, environment, cooking methods, eating times and attitudes towards our foods.

One of the most attractive aspects of Chinese medicine for Oscar is to see how such an old and highly complete medical system is able to bring thousands of years of knowledge to our modern health predicaments, in a safe and very effective manner.



Bei Yin – Structural Integration (Rolfing)

Bei’s understanding of the body and of the transformations that Structural Integration can have on one’s wellbeing is deeply influenced by her personal experiences.
Bei;s former professional life in corporate law, policy and business strategy came to a standstill when her chronic back and neck pain became debilitating. After more than a decade of exploring and being dependent on conventional and alternative therapies for pain relief, Bei found her way back to health after discovering Structural Integration and combining this with strength training.
Structural Integration brought major shifts in Bei’s physical structure that permanently freed her of chronic pain. Inhabiting a more aligned body also gave Bei a stronger sense of self and opened her to new perspectives on life. The profound changes prompted Bei to journey around the world to learn from the best Structural Integration practitioners and to become a personal trainer. After practicing in North America, the Caribbean and the Middle East, Bei returned home to Melbourne to set up practice.    

Bei has helped clients address a wide range of issues through Structural Integration, including:

  • Chronic pain
  • Repeated overuse injuries
  • Pre-surgery preparation and post surgery recovery
  • Post-natal recovery
  • Inefficient structures in the body such as bowed legs, knocked knees, rotations in the hips, high arches, flat feet
  • Trauma such as PTSD
  • Depression and anxiety

Nick Gatsios – Director

Nick Gatsios, has broad-based experience in the life science, corporate advisory and technology industries, from an operational, structural and investment perspective. His most recent accomplishment was listing HealthLinx on the Australian Stock Exchange in 2006 and taking the reins as the Managing Director for over six years. In that time Nick completed numerous commercial transactions for the company including the establishment of distribution networks to sell OvPlex™ into Europe, Asia and Australia and, securing PI’s in Australia, Singapore and the United Kingdom to run a multi-centre multi-national study to increase the clinical data on OvPlex™.

Since the late 90’s Nick has been involved in corporate advisory and capital raising, held an AFS License and raised over $90million for HealthLinx and for clients in the private and public sectors. Prior to his role at HealthLinx, Nick co-founded Teraform Advisory. Through Teraform Nick was appointed by DIIRD (Victorian Sate Government) formally DSRD to assist in the evaluation of Round 1 and Round 2 STI Grant submissions. Nick’s involvement in Round 1 was to critically evaluate the final Business Plan prior to the committee receiving it for final sign off. Round 2 Teraform provided all the Business Plan training for DIIRD and the 22 final applicants and then reviewed over 50% of the applicants Business Plans prior to their final submission to Government.

Collaborators and Alliance Partners

Over the years of developing the Vitality HUB holistic and medical protocols Dr Ash has built relationships with a number of high performing practitioner only supplement companies, allied health providers and compound chemists across Australia.
  • COMO Compound Chemist
  • Herbal Medicine
  • Clinical Nutrition
  • Food as Medicine
  • Lifestyle Counselling
  • Mindfulness & ACT Therapy