Meet Our DoctorsDoctor team






Are you looking for a doctor with a wealth of experience, who you can trust to look after your primary healthcare needs in a professional and caring manner? Our team of highly qualified and experienced doctors come from a wide variety of backgrounds. Their range of interest areas are diverse and all doctors collaborate on a regular basis to share knowledge with each other.

To help you find a doctor that's right for you, please read their profiles below.

Dr Mahu AndersonDr Mahu Anderson


Dr Mahu Anderson graduated from Otago University in 2009 and has since worked as a House Officer in North Shore, Waitakere, Auckland and more recently Rotorua hospitals. Mahu was exposed and able to gain experience in different specialities while in hospital. These are ENT, Paediatrics, Obstetrics and Gynaecology, General Adult Medicine, Orthopaedics and General Surgery.

Mahu is very passionate about what she does and how she cares for people in all age groups and with all cultural backgrounds. Her special interests are childrens health, womens health, contraception/fertility issues, and minor surgeries such as Jadelle insertion or removal/insertion of IUCD and Mirena.

Mahu is very family orientated and resides in West Auckland with her husband and three children. She loves to cook and loves being involved in youth programmes. She enjoys a good read, playing social volleyball and is a big All Blacks fan.

Dr Alina CasanovaDr Alina Casanova


Dr Casanova graduated from Havana University in 1993 and received the First Degree Specialist Award in 1997. After ten years working as a General Practitioner, Alina moved to the United States, where she worked at the University of Miami Hospital for five years. She then spent five years working as a GP in Spain and Europe.

Alina emigrated to New Zealand in 2012 and brings with her more than twenty years of experience as a General Practitioner. She has comprehensive knowledge of treating acute and chronic diseases, as well as their prevention.
Dr Casanova's international experience working as a GP makes her comfortable working with people from different cultures. Her special interest areas include adults, paediatrics and female health. Alina enjoys having a close relationship with her patients allowing her to communicate accordingly and apply the most effective treatment.

Outside of work, Alina enjoys spending time with her husband and two sons, going to the beach, reading and listening to music.

Dr Claire ChuDr Claire Chu - currently on maternity leave


"I believe good medicine looks at treating an illness as well as the effects of the illness in a person as a whole."

Claire graduated from Otago University in 2004 and has since worked in all four hospitals in the Auckland region, with various experience in different specialties including Starship Paediatrics, Obstetrics and Gynaecology, General/Respiratory/Renal medicine, Surgery and Geriatric medicine. In 2007, her enthusiasm in children's health prompted her completion of Diploma in Paediatrics and she is now a Fellow of the Royal New Zealand College of General Practice with updated knowledge and skills to provide a high quality of care.

Claire emigrated with her family from Taiwan and has been resident in NZ since 1996. She is fluent in both English and Mandarin. She enjoys working alongside her patients to improve their health. She cares for people in all age groups and with all cultural backgrounds. Her special interests are childrens health, womens health, contraception/fertility issues, family medicine, chronic care management and minor surgery.

Claire lives in central Auckland with her doctor husband Daniel. In her private time she enjoys jazz/hip hop/cultural dancing, outdoor sports, music and shopping.

Dr Manuel FontanillaDr Manuel Fontanilla


Manuel is a Fellow of the Royal New Zealand College of General Practitioners and the New Zealand Association of Musculoskeletal Medicine. He has a special interest and expertise in treating pain, deformities and disabilities resulting from infections, rheumatism, accidents, sports injuries and cancer of the bones, joints, muscles and other soft tissues of the body.

Manuel has more than twenty eight years of medical and orthopaedic surgical experience. He has taught and worked in University Hospitals in Sweden, New Zealand, Sultanate of Oman and the Philippines. These years in clinical practice, teaching and research has proven invaluable in potential problem analyses and evidence based decision making in the day to day care of his patients.

Manuel is particularly good at the closed treatment of fractures and dislocations, joint manipulations, aspirations and injections. He is able to do minor surgeries to remove skin cancers and lumps and bumps. He plans to have dedicated Pain Clinics to help sufferers of neck, back and limb pains and will also conduct school screening for early detection of scoliosis and other spine deformities.

Career highlights: At the Royal Hospital in Oman, he teamed with paediatric surgeons in the successful separation of a pair of Siamese twins conjoined at the pelvis.He also performed complex corrective surgery for spinal deformities. In Sweden, he participated in the total removal of a patient’s sacrum due to cancer. In Christchurch Hospital, he did postgraduate studies in musculoskeletal medicine while working as a surgical registrar. He was later conferred the diploma from the University of Otago.

Dr Gisa GeorgeDr Gisa George

MBBS, MRCGP (UK, with distinction), DCH

Dr George completed her undergraduate medical training at Calicut University, India in 2001. She was the best outgoing student in her medical school, securing gold medals for the highest achieving student in Medicine and Surgery. After completing her residency, Gisa emigrated to the UK. Here she gained entry into the Carmarthenshire Vocational Training Scheme in Wales, and  acquired experience in Emergency Medicine, Paediatrics, Care of the Elderly and Psychiatry. She  completed her General Practice training in 2007 and passed the membership examination of the Royal College of General Practitioners (United Kingdom) with distinction.

Gisa has been working as a General Practitioner in Liverpool since 2008. During this time she has cared for patients in all age groups and belonging to many different cultural backgrounds. She has also looked after patients with complex medical needs. Dr George received training in Palliative Medicine through Aintree University Hospital and has looked after patients affected by terminal illnesses. She has also completed training in minor surgery and joint injections.

Gisa has a Diploma in Child Health, as well as a special interest in chronic disease management, especially diabetes. She has also been a tutor for medical students at Liverpool University and has a passion for teaching.

Since 2013, Gisa had been working at Holycross Hospital in India, where she gained further experience in emergency medicine and management of tropical illnesses. She emigrated to New Zealand in January 2015 to join her husband, who is a consultant at Auckland City Hospital. They have now settled in Epsom with their two sons.

During her free time, Gisa enjoys dancing, music, cooking, walking, spending time with her family outdoors and shopping.

Dr Colin KatzenDr Colin Katzen


Colin is a South African trained doctor that has been working in General Practice for the last 15 years. He was an AFS intercultural exchange student to the Unites States in 1983 and 1984. In addition, Dr Katzen was a keen athlete and was a South African Schools Champion in 800m and 1500m.

Colin has worked as a GP in South Africa, Australia, Ireland and Masterton during the last 15 years. He also worked as a remote site Medical officer for International SOS prior to relocating to NZ with his family. Dr Katzen’s interests are sports medicine, community development and diabetes care.

Colin was the team doctor for the Eagles Rugby Franchise in South Africa for six seasons. In his spare time, he enjoys spending time with family, watching sports and getting involved in outdoor activities.

Dr Kwan LowDr Kwan Low

FRNZCGP, MBChB, Dip Obs, Certificate in Women's Health

"I believe in evidence based medicine and treating a person as a whole rather than just the illness."

Kwan is originally from Malaysia. He graduated from the University of Auckland in 2007 and has spent a few years working in major hospitals around New Zealand, gaining further experience in Obstetrics & Gynaecology, Rheumatology, Emergency Medicine, Orthopaedics, General Surgery and General Medicine. He obtained a Certificate in Women's Health from the University of Otago in 2010 and an Advanced Diploma in Obstetrics & Gynaecology in University of Auckland in 2011. Dr Low is also a member of the Royal New Zealand College of General Practitioners.

Kwan is a family person. He enjoys interacting with families and children, as well as seeing people from different backgrounds and of all ages.

Dr Low is able to perform minor surgeries such as Jadelle insertion or removal, Mirena insertion or removal, ingrown toenail removal, skin excisions and skin biopsies.

Dr Bill MackeyDr Bill Mackey

MBChB, DipObst, Dip Cosmetic Med, Dip Nutrition, FACAM

We are delighted to announce that Dr Bill Mackey has returned to General Practice at Henderson Medical Centre! While he may need no introduction to some of you, Dr Mackey has spent much of his medical career running his own busy General Practice in the heart of Henderson.

Over the last few years, Dr Mackey has worked in the field of medical supplies. In addition, he has gained further qualifications in appearance medicine. He has a Diploma of Cosmetic Medicine and regularly performs Botox injections and other cosmetic procedures on-site.

Dr Mackey has returned to General Practice to help with the current nationwide GP shortage. This ensures that we have plenty of doctors available to accommodate all of our patient needs. He brings a wealth of knowledge and experience to Henderson Medical Centre and acts as a mentor for our younger doctors.

Bill is enjoying being back and plans to stay with us for the forseeable future, offering both general practice and appearance medicine consultations and procedures. If you would like further information about the range of appearance medicine procedures available, please click here or make a free initial consultation with Dr Mackey through reception.

Dr Rodney MarksDr Rodney Marks

B.Sc (Hons), MBChB, DCH, FRNZCGP, Certificate in Advanced Dermoscopy and Histopathology (University of Queensland), Certificate in Dermoscopy (SCCA), Certificate in Skin Cancer Medicine (SCCA)

Dr Rodney Marks has been working in West Auckland as a General Practitioner since he came to New Zealand in 1994. Before that he was in private practice in South Africa for over 10 years. After qualifying there in 1981 he gained a Diploma in Child Health.

Rodney has a special interest in the  treatment of suspicious skin growths and he attends international courses on this subject. He uses Dermatoscopic assessment of individual skin growths or full body skin checks. If a full skin check is required, a photographic copy of the dermoscopic images  will be given for personal reference. Rodney will discuss your Dermatoscopic findings and the recommended treatment. Any  surgery that may be  required will be explained with the aid of diagrams and photographic images. Private medical insurance could be used to obtain a refund for the surgical procedures. Non-surgical treatment of benign or pre-cancerous skin growths can be carried out either by diathermy or cryotherapy.

Rodney also treats problematic snoring using the Snore-Op procedure. An  appointment can be made with Rodney to discuss snoring and the benefit of Snore-Op. Click here for further information.

Being a fitness enthusiast Rodney believes in regular exercise as a means of preventing health risk factors and slowing ageing.

Sir David MaugerSir David Mauger


David retired from Starship Childrens Hospital in 2006 after a 40 year career in Paediatrics. He was the first Paediatrician to specialise in child cancer in NZ and set up the first specialist oncology unit. He was also involved with the first bone marrow transplant done in NZ. David was a member of the group that set up the Child Cancer Foundation and an advocate for the establishment of Starship Childrens Hospital. In 2002 David was knighted for these services.

Since leaving Starship Hospital David has become a trainee in Urgent Care, a branch of medicine closely related to General Practice. He has five sons who all make movies and seven grandchildren who all live in Auckland. His other interests include classic yachts and Ceroc dance.

Dr David RoweDr David Rowe


Dr Rowe recently reached the age where he qualifies for a SuperGold Card! As such, he has made the decision to spend some well-deserved time with his wife and family, to enjoy some travel and soaking up all that Auckland has to offer.

David will still be practicing at Henderson medical Centre, covering for our other doctors when they take extended leave or are sick. However, from 24 August 2015 he will no longer be working regular hours.

Dr Vivian Santos-FontanillaDr Vivian Santos-Fontanilla


Vivian has been practicing as a physician for 38 years.  This includes practicing as a Consultant Cardiologist and Consultant in Internal Medicine in Sweden, Oman and the Philippines for three decades.

In her role as an Interventional Cardiologist she engaged in invasive and non-invasive cardiac procedures.  She also readily participated in research and teaching opportunities. Vivian completed her Fellowship in Cardiology in Gothenburg, Sweden in 1983.  Her major career highlight was being appointed as the Personal Cardiologist to Her Majesty, the Queen Mother of the Sultanate of Oman.  In this prestigious role, she cared for the Queen Mother and members of the Royal Family.  Vivian also worked at The Royal Hospital, Sultanate of Oman in their Cardiology Department.

In New Zealand, Vivian worked in Christchurch Hospital before relocating to Auckland where she continues to work clinically as a General Practitioner.  Vivian is a Fellow of the Royal New Zealand College of General Practitioners.  More recently, Vivian has joined the team at Henderson Medical Centre where her husband Dr. Manuel Fontanilla also works.

Vivian has special interests in heart disease, women’s and children’s health.  She is passionate about her work as a physician and she is looking forward to working with individuals and their families/whanau in West Auckland.  Vivian attends regular professional development and training to ensure she provides evidence-based and culturally appropriate primary health care services.

Dr Dirk VenterDr Dirk Venter

FRNZCGP, MBBCh, DA(SA), Dip. Skin Cancer Med/Surg (SCCA), Dip. Dermoscopy (SCCA)

Dirk has been practicing in West Auckland since 1998 and is a Fellow of the Royal NZ College of General Practitioners. He aims to provide friendly and up-to-date personal healthcare to individuals and families. Dirk enjoys all aspects of General Practice, seeing patients of all ages.

Dr Venter has an interest in the diagnosis and management of skin cancer, and underwent further training in this area through the University of Queensland. He is an Accredited Doctor with the Skin Cancer College of Australasia. He has the latest dermoscopic equipment and uses this to help diagnose suspicious moles. Dr Venter regularly removes skin cancers (including complex, large lesions on the face) in one of our on-site surgical theatres. Visit for further information.

Dirk is very experienced in the no-needle, no-scalpel method of vasectomy (also done on-site). Visit for further information.

Dr Venter is an Affiliated Provider to Southern Cross Health Society for vasectomies and skin cancer surgery.

He lives locally in West Auckland with his wife Becky, where family life is important to them both.


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