Meet The Team

We have a fantastic team of Doctors, Nurses and Support Staff.

Our Doctors

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Dr Susan Macpherson

Dr Susan Macpherson has practiced in Alexandra since 1988. She enjoys providing holistic family health care, from pre-conception to elderly health. She holds a postgraduate qualification in Occupational Health. She enjoys working with children and teenagers

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Dr Martyn Williamson

Dr Martyn Williamson has special interests in musculoskeletal medicine, including acupuncture, and medical research. He continues teaching at the Otago School of Medicine in Dunedin. He comes from a well-known cycling family, and enjoys coaching young athletes, with national and international success.

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Dr Carolyn McKenzie

Dr Carolyn McKenzie is a born and bred southerner, growing up in Tapanui and Wanaka. She holds a degree in Communications Studies and initially spent a number of years in Auckland working in the corporate world before she saw the light and re-trained at Auckland Medical School. She then moved back to the South Island and spent several years working at Timaru Hospital and in 2015 completed a Postgraduate Certificate in Travel Medicine before moving into General Practice.

Carolyn enjoys the variety that General Practice provides and loves working in a more rural setting. Carolyn currently lives in Wanaka and when she’s not at work spends her time baking, growing her own veges and working on landscaping her section (which is a work in progress..)!

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Dr Elina Kiuru

Elina moved to New Zealand 5 years ago after completing her medical degree at University of Helsinki, Finland. She worked in Southland Hospital before becoming a rural GP. Elina enjoys all aspects of general practice, her special interest area being women's health.

Elina is enthusiastic about lifelong learning and is currently working towards two postgraduate qualifications: Postgraduate diploma in General Practice and Fellowship of the New Zealand College of General Practitioners.

She keeps up her acute skills working at Central Otago After Hours and Dunstan Hospital.

Elina loves the lifestyle Central Otago has to offer. Outside of work she enjoys spending time with her family, going running and looking after her nine chickens.

Our Practice Nurses and Support Team

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Raylene Fastier

Nursing Team Leader/ Practice Nurse


Registered Comprehensive Nurse (Otago Polytechnic 1988)

Bachelor of Arts (Massey University)

Master of Health Science (Otago University

Clinical Focus - Complex Long Term Conditions and Medication Concordance

I have significant clinical experience working in NZ and the UK including acute orthopaedics, district nursing, nursing lecturer, palliative care, management of a neuro rehabilitation unit for young people and community matron.

My interests include cycling, yoga, meditation and I am an avid reader and movie-goer.

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Dianne Sinnamon

Practice Nurse

I have been fortunate enough to work at Ranfurly Hospital and Ranui Home/Hospital and Dementia Unit and I have found this to be of great help with my role as a Practice Nurse here at Centennial Health.  I am married and have 3 children (2 grown up).  I enjoy walking, patchwork, knitting, cafe visits and getting to know people.

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Lana John

Practice Nurse

Bachelor of Nursing (Otago Polytechnic 1999)

Clinical experience includes a variety of medical and surgical settings, palliative, emergency, endoscopy and outpatient clinics, and most recently Vincent Ward at Dunstan Hospital.

Originally from Alexandra, I am enjoying being back in the community bringing up two young children after years living and working in Australia and the UK.

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Maureen de Thierry

Receptionist/ Administration Assistant

Maureen has been with Centennial Health for more than 25 years commencing in November 1989.  Her wealth of knowledge and familiarity with our patients make her a friendly face behind the reception desk.

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Jackie McDonnell

Receptionist/ Administration Assistant

I started my working career as a receptionist before becoming an enrolled nurse back in the dark ages even before dinosaurs walked the earth. My nursing years were mainly here in Alexandra and in Gore. For the last 8 years I have worked in the homebased services as a Senior Co-ordinator before joining the CHL team in February this year in the capacity of administration/receptionist. I have lived in Alexandra for the last 22 years and love the diversity that Central Otago has to offer.

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Karla Stiles

Practice Manager

I have been working in the health industry for the last 14 years including the Emergency Dept at Dunedin Hospital, Outpatients at Dunstan Hospital and other medical centres.  I am passionate about customer service and going the extra mile for our patients.