Meet the Team

Jordan Tewhaiti-Smith

Senior Executive
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Kia ora! I’m Jordan, currently an O&G Training Registrar based at Dunedin Hospital. I grew up in the Wairarapa but have huge connections to the South Island. Ko Ngai Tahu, Ngati Kahungunu me Ngai Puhi oku iwi. I have experience working in large tertiary hospitals, and smaller provincial hospitals as well.

STONZ reflects my goals for training now and for the future. I feel that STONZ has RMOs and patients at the centre of our work. In a time where the public health sector is changing constantly, and not always for the better, I hope to be able to facilitate balanced communication with the RMO workforce coming through (including TIs) and support them in joining a union that works for them and fights for the rights of RMOs to be trained, competent practitioners. I am proud to be part of this union which values people and training at its core.

E: Jordan.TS@stonz.co.nz

Emma Littlehales

Senior Executive
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I’m a plastics trainee, originally a UK grad, living in NZ since 2016, I’ve now made my home here. I’m part of the RACS Prevocational and Skills Education Committee, representing surgical non-training registrars. I joined STONZ because I worked in the UK where juniors worked a 70-hour week to get the required experience for elective surgery but were only paid 48.

I want to ensure NZ trainees gain the required experience to become SMOs in a safe way, whilst being recognised and compensated for the hard work we do. I advocate for safe and evidence-based rosters, allowing for training time to develop safe SMOs. I also want to give a voice to non-training registrars, who are less protected than their trainee counterparts, and do a large amount of the day-to-day work in the hospital.

E: Emma.L@stonz.co.nz

Christina Matthews

Senior Executive
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I'm an ORL trainee; originally from Auckland but over the years I have worked in Northland, Auckland regions, Christchurch and Waikato.

As part of the STONZ Executive, I welcome contact from all members and look forward to representing RMOs across NZ. I have previously sat on RACSTA and the ORL board as the New Zealand trainee representative.

I joined STONZ when I was a non-trainee, as I believe we have a good balance between adequate and quality training, for our junior doctors.

E: Christina.M@stonz.co.nz

Alastair Hercus

Senior Executive
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Alastair is an Anaesthetic trainee in the Auckland region who has been part of the STONZ Executive since 2022.

He is originally from Christchurch where he began his career and maintains strong ties to the region.

Alastair believes that STONZ best represents the needs of RMO’s through promoting safe work environments and fostering training. Fair renumeration and maintaining adequate RMO training are of particular interest to him. Collaboration on these issues is paramount, and Alastair looks forward to continuing STONZ connection with the various stakeholders to ensure these areas, among others, are addressed.

E: Alastair@stonz.co.nz

Bri Northey

Junior Executive
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Kia ora, I'm Bri. I'm an Obstetrics and Gynaecology training registrar in Middlemore Hospital. I grew up in Whangārei in Te Tai Tokerau. I whakapapa to Ngāti Tukorehe, near Otaki.

I have worked in regional and rural hospitals at Tauranga and Whakatāne Hospitals for four years prior to moving up to Auckland for training. STONZ has RMOs best interests at heart, and I am proud to be part of a team that is leading the way. The priorities of STONZ are RMO wellbeing and enhancing our training experience.

I have been on the STONZ executive for 2 years now and hope to continue to contribute in a meaningful way. MOs best interests at heart.

E: Briana@stonz.co.nz

Darren Ritchie

Junior Executive
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I am a Medical Administration (RACMA) trainee in the Auckland Region. My day job involves working to improve our hospitals for both RMOs and patients. I have also completed further studies in digital health.

I believe STONZ best represents the needs of our junior workforce in balancing training requirements and well-being through our career.

As part of the junior executive, I hope I can help my current and future colleagues in making informed decisions that have positive impacts on our workforce in the future.

E: Darren.R@stonz.co.nz

Carmella Catlow

Junior Executive
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Kia Ora, I'm Carmella. I am originally from the UK and after completely my medical degree and foundation training in Cardiff I moved to NZ in 2020. I initially worked in Whangārei Hospital in Relief where I worked almost every RMO job in the hospital before settling into Paediatric Training. I am currently working in Christchurch as a Paediatric Registrar.

I joined STONZ because the values at the heart of STONZ very much align with my own values. I love that STONZ is a union for doctors run by doctors and I am grateful to be so involved with an amazing group of people. I want to ensure that all RMO voices are heard and that in the dynamic environment that our health system is at the moment, RMOs continue to be valued and training needs are safeguarded.

E: Carmella.C@stonz.co.nz

Dale Andrew

Junior Executive
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Hi everyone, I’m Dale and I’m an ORL Trainee currently based in Northland. Since 2024 I have been working part-time while undertaking my masters in Bioethics and Health Law which should finish mid 2025.

I have been a member of STONZ since we first began as a union and have been increasingly involved since that time. I am particularly interested in advocating for my junior colleagues and ensuring that we are all seen as valuable members of our departments and in the running of Te Whatu Ora as a whole.

I am passionate about our union and proud of the progress we have been able to achieve in our relatively short existence. I hope to contribute to this ongoing progress in whatever way I can.

E: Dale.A@stonz.co.nz

Chantelle Petterson

Medical School Representative
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Currently a 5th year medical student (Christchurch Campus, Otago University). Prior to medical school, I was a proud STONZ member while working as an RMO in the Maxillofacial units in Christchurch and Waikato. I was privileged to be the delegate representative in 2022 and have recently moved into the medical school rep position.

As the medical school rep, I am a link between the TI delegates reporting to the STONZ Exec as they pave the way for the next generation of junior doctors. I’m also passionate about supporting the cohort of current and future dental graduates who take up RMO positions. It’s an honour to be part of the team!

Brad Atkinson

Delegate Representative

In 2025, Brad has moved from Northland to Southland where he is currently a PGY5 Non-Training Orthopaedic Registrar. Brad joined STONZ as a Trainee Intern based on his career plans and the healthcare values that he wanted to uphold. After facing some contract issues early in his career and initially being unsure where to go for support, he found himself stepping into the role of a STONZ delegate toward the end of PGY1 in Invercargill.

Being a delegate is a very rewarding role, supporting colleagues looking for advice and/or help to resolve specific issues. Being the “feet on the ground” to identify some of the wider issues RMO’s are facing and raising these with the support team to help further advocacy is also very rewarding.

Brad's role as the Delegate Representative is to support delegates in their day-to-day advocacy, recruit new delegates and find ways to develop the delegate role.

Dale Andrew

Delegate Representative

Hi everyone, I’m Dale and one of the Delegate Representatives for STONZ. I am currently an ORL Trainee based in Northland, working part-time while undertaking my masters. I have been a member of STONZ since we first began as a union and have been increasingly involved since that time.

I am passionate about our union and proud of the progress we have been able to achieve in our relatively short existence. I hope to contribute to this ongoing progress in whatever way I can.

The delegate representative role is essentially a go-between for the delegates spread out over the country so they have a regular point of contact, and person who can further their thoughts to the STONZ executive. We are involved in on-boarding new delegates, regular catchups to ensure we identify issues or concerns as soon as we can, and further disseminating any information as needed. I look forward to meeting you in the near future, don’t hesitate to reach out if needed.

Maria Nonis

Project Rep - House Officer

Kia ora! I’m Maria, House Officer currently working in the Emergency Department at Christchurch Hospital and have recently taken up the position of the House Officer Projects Representative for STONZ.

I grew up in Christchurch and headed south for medical school in Dunedin. I love all things project related, including gardening, baking and embroidery.

I joined STONZ due to their strong work ethic and advocacy to improve conditions for doctors and patients. I am passionate about researching and evaluating current working conditions and how we can use our collective experiences to make positive change and improvements.

Feel free to get in touch or say hello – I am always open to hearing any ideas, questions, or issues.

Anika Radojkovich

Project Rep - Non-Training

I'm a surgical registrar who has dabbled in plastics, general surgery and orthopaedics. I spent my early years as a doctor in the Auckland region before moving Hutt Valley where I’ll start plastics training in July 2025.

I joined STONZ because I believe their work is key in protecting and improving conditions for doctors. I am passionate about creating a safe working environment while still enabling us to get the most out of our time and training - which ultimately gives our patients the best result.

As the new non-training registrar representative my role is to advocate for those in the gap between House Officer supervision and the formal college progression. STONZ wants to improve the experience, training and protection of non-training registrars so we will be working on projects to create change in this area and capture information to communicate the experiences and difficulties for this group.

If you have any questions, concerns or experiences you want to share feel free to get in touch!

Acacia Wratten-Stone

Research Representative
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Kia ora, I’m Acacia. I currently work as a non-training General Surgical registrar in Te Tai Tokerau. I grew up in Auckland, and have spent time working in the Auckland region as a junior registrar after completing my house officer years in Tauranga. My iwi are Ngāti Kahungunu (Wairoa) and Ngāti Raukawa (Ōtaki).

My role here at STONZ is to coordinate the research portfolio, including promoting research opportunities and managing the STONZ research grants. Developing an evidence base for our advocacy work is incredibly important and has the potential to positively influence our future negotiations, and therefore the working experience of future RMOs. So - If you have any questions, ideas or just want to chat about a project, please get in touch via research@stonz.co.nz.

Kate Clapperton-Rees

Executive Director
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Kate is responsible for the operational management and strategic leadership of STONZ i.e. putting the Executive teams plans into motion.

Kate has a background of Business and Human Resources, with experience ranging from setting up and managing small businesses, to working for the Northern Regional Alliance team holding a number of roles there over the years including Allocations and Training, Daily Operations, and Workforce Development. Prior to joining STONZ Kate had a break from the health sector and worked at Christchurch International Airport in the People and Culture team.

E: kate@stonz.co.nz

Janelle Butcher

Senior RMO Advisor
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Janelle is our RMO and rostering specialist and joined us in 2020 after 5 years with CDHB, firstly as the Surgical RMO Coordinator and then as the RMO Support Team Leader.

Janelle studied Human Resources and got her foot in the door at CDHB starting out in the HR Team so brings a huge knowledge of the Districts and the RMO workforce with her. When Janelle’s not working you’ll find her hanging out with her dog or helping out the Scout Group where she is a leader.

E: janelle@stonz.co.nz

Therese Yamit

RMO Coordinator
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Graduating last December, Therese has a background in Health Sciences and majored in Public Health at the University of Canterbury.

During her studies, she completed two internships at Kidney Health NZ and the Cancer Society, as well as worked with the UC School of Health Sciences. In these previous roles, she worked with health promoters and health professionals on varying projects. She is now looking forward to being able to help STONZ members and RMOs working across the Districts.

E: therese@stonz.co.nz

Vicky King

Membership Administrator
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Originally from Wellington, Vicky has an administrative and clinical background in primary healthcare. As part of the STONZ support team she assists with membership and accounts and finds it a privilege to be involved in helping our dedicated RMOs with their mahi across the motu. Living rurally, life is kept full raising 2 children in North Canterbury while making the most of what the beautiful Waimakariri region and Ōtautahi has to offer.

E: support@stonz.co.nz

Zara Park-Eadie

Executive Support
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Zara comes from a private health background, she brings a wealth of knowledge and experience from working in Finance, HR/Payroll and Board/Executive support.

Her roles supporting medical specialists were many and varied including responsibility for: ensuring correct & timely salary and shareholding payments; that CME balances were accurate with claims paid within 1-2 weeks.

At STONZ, Zara provides Executive governance and administration support and assists the wider team. When not working Zara enjoys the outdoors with family and friends.

E: zara@stonz.co.nz

Heath Lash

Ex-officio Executive
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Heath is the founder and ex-chairman of STONZ. Since starting STONZ he has completed Orthopaedic Surgical Training and moved back to Christchurch with his young family to start his first SMO role. Heath has previously also been the representative of New Zealand surgical trainees to the Royal Australasian College of Surgeons.

Heaths current role as an ex-officio member of the Executive is to provide guidance and support if needed as we continue to grow.

E: support@stonz.co.nz

Blair York

Ex-officio Executive
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Blair finished his plastic and reconstructive surgery training following his return from Melbourne where he completed his fellowship. Blair has now started his first role as a SMO at Canterbury District. Blair moved to an ex officio role on the executive after standing down following a 3-year tenure as treasurer for STONZ in 2022.

During his training Blair has been on RACSTA, the NZ Board of plastic surgery training and the trainee representative on NZAPS.

Blair brought that experience with those governance positions to the executive team during his tenure and is now happy for the current executive to tap into this as an ex officio member.

Earle Savage

Ex-officio Executive
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After completing his final exams and fellowship in orthopaedics, Earle stepped down from the STONZ Executive in August 2023. Earle, alongside Heath Lash, formed STONZ in 2018 and we are enormously grateful for Earle's commitment and contribution to STONZ over the years. In a previous life Earle was a physiotherapist who ran a large Musculoskeletal and Occupational Rehabilitation company with 6 practices based in the Waikato and Christchurch before being enticed into medicine so brought a savvy business mind to the team. We are pleased to have Earle stay on as an Ex-Officio member to help provide mentoring and support when needed for our new team's coming through.

Earle has served on several District clinical boards and has also worked at a board level in Waikato representative sport.