About Us

About GMC

At GMC Cosmedical, experience, expertise, and genuine care come together to create a clinic patients trust and return to.

With locations in Narellan and Randwick, GMC Cosmedical has been supporting patients for more than 35 years.

Dr George Calfas, Nurse Madeline Calfas, and Podiatric Surgeon Dr Maree Marks each bring extensive experience in their respective fields, forming a highly skilled team focused on delivering thoughtful, considered care.

Patients continue to choose GMC Cosmedical not only for its experience and breadth of treatments, but for the genuine care they receive, where they feel heard, respected, and supported every step of the way.

Our Treatments

At GMC Cosmedical, patients have access to a wide range of advanced treatments, all delivered by an experienced and highly skilled clinical team.

From skin and laser treatments through to medical cosmetic procedures, podiatry, and naturopathy, our clinics offer a comprehensive selection of services designed to support a variety of concerns.

We utilise advanced technology and evidence based treatment options, allowing our team to provide care across multiple areas, all within one trusted clinic.

Whether you are exploring treatment options for the first time or looking to learn more, our team can guide you through what may be suitable for you.

Our Experience

With more than 35 years in cosmetic and medical practice, GMC Cosmedical is built on a strong foundation of clinical experience, ongoing education, and a long standing commitment to the medical field.

The team at GMC Cosmedical is highly skilled and recognised for their ongoing contribution to education and professional development within the medical community. Their work extends beyond the clinic, with active involvement in mentoring, training, and sharing knowledge with other healthcare professionals.

Our practitioners have:

β€’ Undertaken training both in Australia and internationally
β€’ Contributed to the education and mentoring of healthcare professionals
β€’ Presented at medical conferences and training forums
β€’ Participated in the development and application of evolving technologies and techniques

At GMC Cosmedical, experience is not only measured in years, but in a continued commitment to learning, refining skills, and contributing to the future of medical practice.

GMC Story

1980s

Dr George Calfas begins practising cosmetic medicine in Australia.

1990s

Expansion of advanced laser and non-surgical cosmetic procedures.

Early 2000s

Establishment of GMC Cosmedical Clinics in Randwick.

2010s

Expansion to Narellan. Growth in regenerative and advanced treatment offerings.

Present

Over 35 years of medical cosmetic experience, continuing education, and patient-centred care across two Sydney locations.

Learn More About Who We Are

Meet Our Team

MBBS, D Phys Med, D Dermatology, FACCSM(Med), FCPCA

Dr George M Calfas

When it comes to experience, clinical knowledge, and a long standing commitment to patient care, Dr George M Calfas has been a trusted name in cosmetic medicine in Australia for more than 30 years.

As the founder of GMC Cosmedical Clinics in Randwick and Narellan, Dr Calfas has built a medically led practice focused on considered, personalised care. His approach is grounded in thorough consultation, careful assessment, and guiding each patient through their options so they can make informed decisions with confidence.

Dr Calfas holds a Bachelor of Medicine and Surgery from the University of New South Wales, with further postgraduate qualifications in Physical Medicine from the University of Sydney and a Diploma of Practical Dermatology from the University of Wales in the UK. His extensive training is complemented by decades of hands on clinical experience across a wide range of procedures involving the face, neck and body.

Beyond his work in clinic, Dr Calfas plays an active role in shaping the future of cosmetic medicine. He is a Senior Fellow and founding member of both the Cosmetic Physician’s College of Australasia and the Australasian College of Cosmetic Surgery and Medicine, where he contributes as a mentor within the Clinical Training Program and serves on the Medical Board.

He continues to regularly attend international conferences and educational forums, ensuring he remains up to date with evolving techniques, technologies, and emerging areas such as regenerative medicine.

At GMC Cosmedical, Dr Calfas leads a team of experienced medical professionals, including Nurse Madeline Calfas and Podiatric Surgeon Dr Maree Marks, who share a focus on patient safety, education, and personalised care.

Whether you are exploring treatment options for the first time or seeking a considered medical opinion, a consultation at GMC Cosmedical is the first step in understanding what may be suitable for you.

General Registration: MED0000942626

B Nursing, BHSc (Nat), Adv Dip Nat, Adv Dip Nutrition

Madeline Calfas

When it comes to skin health and personalised care, Nurse Madeline Calfas offers a depth of experience and a considered, holistic approach that patients value and return to.

Madeline is a Registered Nurse and highly experienced cosmetic and laser practitioner, with over 20 years of experience in aesthetic medicine, skin treatments, and integrative care. She is also a qualified Naturopath and Nutritionist, holding a Bachelor of Health Science (Naturopathy) and Advanced Diplomas in Naturopathy, Nutrition, and Herbal Medicine, along with A5M certification.

Her approach focuses on understanding each patient as a whole, taking into account not only the skin, but also the internal and lifestyle factors that may influence skin health and overall wellbeing.

Madeline is experienced in a wide range of treatments, including cosmetic procedures, laser treatments such as Fotona GD, platelet rich plasma (PRP), collagen stimulating injectable treatments, and advanced skin therapies. She also has a strong focus on personalised skincare, guiding patients through customised skincare programs designed to support individual skin needs.

In addition to her clinical work, Madeline is an injector and laser trainer to other nurses and doctors and contributes to health, cosmetic, and nutrition publications. She is also the founder of The Wellness Group, supporting patients through a holistic approach to appearance and wellbeing.

At GMC Cosmedical, Madeline is known for her refined, patient centred approach, with many patients returning for her guidance, continuity of care, and focus on long term skin health.

Nurse Registration: NMW001350182

MSc, BAppSc(Pod), Dip HCM, Dip Pod, MCPod, FCpodS, FACPS

Dr Maree Marks

Specialist Surgical Podiatrist Reconstructive Foot Surgery

Dr Maree Marks is a specialist surgical podiatrist with extensive experience in foot and ankle surgery. She also has clinical experience in aesthetic, skin and laser therapies.

Dr Maree commenced her surgical podiatry career in Australia in 2003 before undertaking further education, surgical training and clinical practice in the United Kingdom, including at Charing Cross Hospital in London. During her time in the UK, she attained Fellowship of the College of Podiatrists, Faculty of Podiatric Surgery (UK), and Fellowship of the Australasian College of Podiatric Surgeons.

She subsequently practised in a senior surgical role in the United Kingdom, where she also contributed to university teaching and the education and training of surgical registrars. She returned to Australia and continues her private clinical practice in Sydney, alongside her role as a university lecturer.

In addition to her surgical practice, Maree has experience in aesthetic treatments, skin and laser therapies. Her clinical approach is informed by her knowledge of anatomy, clinical assessment and individual patient needs.

Maree regularly participates in professional education and attends national and international conferences to maintain and develop her knowledge across her areas of clinical practice.

At GMC Cosmedical, Maree provides aesthetic, skin and laser treatments as part of an individualised approach to patient care, with treatment recommendations based on each patient's presentation, goals and circumstances.

Specialist Registration Podiatric Surgery: POD0001275007