Medical Practioners
Dr Marcus Hewitson
MBBS B.Sc(Med) FRACGP
Marcus is an experienced General Practitioner and educator in the field of Personalised Medicine. He graduated from UNSW in 1998 with an MBBS and Bachelor of Medical Science degree. A generalist at heart, he spent over a decade gaining broad experience in rural Australia across various specialties.
While maintaining a strong foundation in general practice, Marcus has developed special interests in comprehensive whole-person health care, optimising health, and chronic disease prevention. He incorporates evidence-based nutritional and environmental medicine approaches.
Marcus lectures on the use of injectable nutrient therapy and has completed advanced training through organisations such as the Australasian College of Medical Nutrition (ACMN) and the Walsh Research Institute.
Marcus is dedicated to empowering patients through in-depth, personalised care and collaborative health strategies.
Dr Marcus is not accepting new Workcover cases.
Clinical Support Staff
Lorelei Berriman
Lorelei’s passion for working with people crystallised after volunteering with the Byron Youth Service in 2005 where she worked as a mentor for young people, liaising with local services and DOCS. Seeing a real need to develop her knowledge of Drug And Alcohol issues she began her training as a Drug and Alcohol Counsellor, moving into Life Line Counselling in Lismore.
Wanting to expand her skills further, Lorelei entered into the field of Nursing and graduated in 2007 from the Australian College of Nursing, where she worked in a range of settings such as Medical Emergency, Drug and Alcohol, Methadone Clinic, Paediatrics and Orthopaedics.
Over the last 10 years, Lorelei has worked as an Integrative Health Nurse, running a busy IV clinic, specialising in intravenous nutrients and chelation therapy. She has worked in many areas from management and administration to practice nursing and women's health. She has undergone extensive training in injectable nutrients and has gone on to train nurses entering into Nutritional and Environmental Nursing. Lorelei also completed her Well Women's Screening Course with Family Planning NSW and offers her patients Well Women Health Checks, including Cervical Screening Test and breast checks.
Lorelei has a clear passion for supporting her patients and assisting them to reach their optimal health by creating a warm and friendly environment. Having a young child with allergies she has had first-hand experience with the benefits of Nutritional and Environmental Medicine.
Receptionist
Maxine Hogan
Maxine is an integral part of the OSNEM team, bringing excellent organisation skills, empathy, and kindness to patient care. Maxine is a Byron Shire local and is very passionate about servicing the community and their health care. You may have seen Maxine over the last 15 years in various local health care facilities, specializing in Integrative Medicine. Maxine has had the pleasure of working with some of the most renowned integrative GPs in Australia and loves assisting patients on their health journey.
ARE YOU INTERESTED IN WORKING WITH US?
At OSNEM, we're building a collaborative environment focused on integrative, lifestyle-oriented medicine. If you're a practitioner aligned with evidence-based approaches in nutritional, environmental, or lifestyle medicine, we invite discussions about potential opportunities.
Our practice in Ocean Shores, NSW, supports professional growth, including access to shared spaces for telehealth and consultations.
As we enhance our services through ongoing education, we're keen to connect with those seeking to advance their career in this field.