Dr. William “Bill” Geyer

Dr Bill Geyer graduated from Adelaide University in 1989. After working in Adelaide, the Northern Territory, New South Wales and throughout rural South Australia, he commenced practice in Tanunda in 1995. His special interests are Obstetrics (including deliveries), anaesthetics, injury prevention and Methadone prescription. His special interests are Anaesthetics, injury prevention and Methadone prescription.

Outside of work Dr Geyer enjoys camping and 4WDing. He has been a medic for the Variety SA Bash and 4WD Adventure since 2005. He plays the clarinet and the saxophone – badly.

Dr Geyer consults here at TMC on Mondays, Wednesdays, Thursdays, and Fridays. 

Dr. Sonia Malone

Sonia joined the Tanunda Medical Centre in 2001 after completing her fellowship in rural General Practice and a diploma in rural medicine (anaesthetics). Her interests include Preventive health care, women’s health, men’s health, and skin cancer medicine. Sonia is an active member of the Australasian Menopause Society and has a special interest in supporting women and their families at the time of menopause. She is also a faculty member of the PRCC medical student program for the collaboration between Adelaide and Flinders universities providing teaching for senior medical students in the Barossa Valley.

When Sonia isn’t at work she loves spending time with her friends, walking her dogs and riding her pushbike around the Valley.
Dr Malone consults here at TMC on Mondays, Tuesdays, Wednesdays, and Thursdays. 

Dr. Fraser Vivian
FRACGP MBBS Dip Child Health

Born and raised in rural Victoria, Dr Vivian attended the University of Adelaide, always with an eye on rural General Practice. Following internship, he undertook training in anaesthetic skills at the Modbury Hospital. General Practice training was undertaken in Naracoorte, then in Tanunda until completion in 2003. Dr Vivian has been a partner with the practice since 2004 and divides his time between General Practice consulting, providing anaesthetic services in operating theatres and labour wards in Angaston, Tanunda, and Gawler.  As president of the ‘Barossa Rams’ Rugby Union club, he can be found on weekends either supporting or playing ‘The Game They Play in Heaven.’
Dr Vivian consults here at TMC on Mondays, Tuesdays, Wednesdays, and Fridays.

Dr. Kate Honner

Kate was raised on her family’s 6th generation farm on southern Yorke Peninsula with her 5 younger brothers. She spent over 2 decades as a Registered Nurse (Emergency and Intensive Care) and Midwife before studying Medicine at the University of Notre Dame in Sydney in 2012, with the long-term goal of returning to country South Australia as a Rural GP Anaesthetist. Kate has been at the Tanunda Medical Centre since 2021 and does anaesthetics at Angaston, Kapunda and Gawler. She’s passionate about providing personalised and thoughtful general practice and anaesthetic services to rural communities across the lifespan. Outside of work, Kate enjoys cooking for family and friends, live music, wintry weekends away and exploring the wonders of the Barossa Valley.

Dr Honner consults here at TMC on Mondays, Tuesdays and Thursdays.



Dr. Natalie Payne
MBBS FRACGP Dip Child Health

Natalie grew up on her family farm and studied medicine in Adelaide, before returning to the country for GP training.  She has been at Tanunda Medical Centre since 2013 and loves the variety of her work.  She has a particular interest in complex chronic disease management, lifestyle approaches to good health, and ensuring personalised care for her patients.  Outside of work, she can be found on the farm with her family, playing tennis, or planning her next home improvement project!

Dr Payne currently consults here at TMC on Monday’s and Friday’s starting February 2024. 

Dr. Matthew Teague
FRACGP MBBS DRANZCOG Advanced Diploma Skin Cancer Medicine

Dr Teague completed his initial medical training at the University of Adelaide in 2001. After working in Queensland and the Northern Territory he returned to South Australia to complete general practice training in Adelaide’s southern suburbs and the Adelaide Hills. Joining the practice at Tanunda in 2013 he has experience in a broad range of general practice and rural medicine with a particular interest in emergency medicine and chronic disease management. He has completed further training in skin cancer medicine and surgery and provides skin checks and skin surgery services . Having a young family and living in the Barossa he enjoys being part of the local community participating in weekend sports, gardening and of course wine appreciation.

Dr Teague consults here at TMC on Mondays, Wednesday, Thursdays and Fridays.

Dr. Sally Nelson

Dr Sally Nelson joined Tanunda medical Centre in 2013 after spending 10 years working in general practice in rural Queensland, remote Aboriginal communities and in various locations around Adelaide. Her special interests are paediatrics, emergency medicine and preventative health care.

Dr Nelson consults here at TMC on Tuesdays and Fridays.

Dr. Jacynta Batt

Dr Jacynta Batt graduated from the University of Adelaide at the end of 2017. She worked as a junior doctor at Flinders Medical Centre before starting GP training in Loxton in 2020, then moving to Tanunda in 2021. She was inspired to pursue rural general practice following her year-long placement at TMC in 2016 as a medical student.

Jacynta’s special interests are preventative medicine, cardiovascular disease, medical education and LGBTQ+ health. She is able to prescribe gender affirmation hormone therapy following the informed consent model.

Outside of medicine Jacynta enjoys video gaming and martial arts (she currently trains at Element Jiu Jitsu in Nuriootpa). She loves animals and experiencing good food (and wine).

Jacynta currently consults here at TMC Monday, Wednesday and Friday.

Dr. Cristina Valero

Dr Cristina Valero went through Medical School at the University of Adelaide and graduated in 2016. Over the following two years she worked in rural south Australia, the QEH, the RAH and Flinders Hospital before coming to Tanunda as a registrar in 2018. Dr Valero spent 2019 working in the mid-north and then did some extended skills in sports and exercise medicine. She came back to Tanunda in 2020 when she finished training and has been working at TMC part time since. Dr Valero works part time in sports medicine and in medical education, both medical student and GP registrar training. Dr Valero’s areas of interest include women’s health, chronic disease management, sports and exercise medicine and eating disorder healthcare. And everything else really! Outside of work, she loves to run with her dog, is a keen netballer and loves to travel and spend time with friends and family.

Dr Valero currently consults here at TMC Wednesday mornings and Fridays. 

Dr. Jessie Myatt
MBBS, FRACGP, DRANZCOG and Dip Child Health

Dr Jessie Myatt graduated from Flinders University in 2012. She grew up in the Barossa and after spending some time away for university and work, she has returned as a GP. Dr Jessie Myatt has a special interest in Obstetrics and Gynaecology, completing her diploma in obstetrics at the Lyell McEwin Hospital, as well as paediatrics, completing the diploma in Child Health. When not consulting Jessie enjoys spending time with her young family and running.

Dr Myatt consults here at TMC on Mondays, Wednesdays, and Thursdays. 



Dr Kristy Edwards practices exclusively in skin cancer checks and treatments for the past 10 years. She has sub-specialised in skin cancer treatment and holds a Masters Degree in that field. 

Kristy has recently relocated from Victoria with her young family and is looking forwarded to helping with providing the Barossa Valley with high quality skin cancer care.  Outside of work she enjoys looking after her fruit and veggies at home, walking and exploring the Barossa with her family.

Dr Edwards currently consults at TMC Monday mornings and Tuesdays.