Meet our highly trained professional team

These are our doctors, their availability and special areas of practice


Dr Nick Gianarakis

MBBS (Hons), BMedSc

Monday to Friday

Special Interests: Surgical Procedures, Skin Procedures, Sports Medicine/Injuries, Children's Health and General Practice


Dr Viet Tran


Monday to Friday

Special Interests: Children's Health and General Practice


Dr Denise King


Not currently taking new patients

Monday, Tuesday, Thursday and Friday

Special Interests: General Practice, Women's Health, Skin & Surgical Procedures


Dr Katrina Li

BPhty, MBBS (Hons), FRACGP, DipChild Health

Currently on Maternity Leave

Special Interests: Women’s Health, Children's Health, General Practice, Family Planning and Implanon Insertions


Dr Julia Rollston


Wednesday and Friday

Special interests: General Practice


Dr Kim Le


Monday to Friday

Special Interests: General Practice



Dr Eriko Yamashita

B.Pharm, M.D, DRANZCOG, Grad Cert Medicine 

Wednesday and Fridays

Special Interests: General Practice, Women's Health, Children's Health and Skin Disorders



Dr Erin Waters

MBBS (UQ), FRACGP, Bsc, Dip Child Health, Dip Med Ed 

Monday, Tuesday and Friday

Special Interests: General Practice, Women's Health, Family Medicine, and Children & Adolescent Health

*Please note, Dr Erin Waters has her own private billing schedule. Please see the fees section of our website for more details


Dr Rosalie Theodoros

MBBS (Hons)

Monday, Tuesday and Thursday

Special Interests: Women's Health, Children's Health, Skin Procedures, Minor Surgical Procedures & General Practice


Dr Anna Masel

MBBS (Hons 2nd Class)

Monday, Wednesday, Thursday and Friday

Special Interests: Women's Health and General Practice


Dr Tim Copland

BSc (Hons 1), MBBS, FRACGP

Monday to Friday

Special Interests: Children's Health, Musculoskeletal Medicine and General Practice


Dr Chris Thelander


Monday to Friday

Special Interests: General Practice, Skin & Surgical Procedures

Jonathan Ong2

Dr Jonathan Ong

B.Pharm (Hons), MBBS, FRACGP

Tuesday and Thursday

Specialty Interests: General Practice, Chronic Disease Management, Preventative Health and Implanon insertions

Consultations can be conducted in Mandarin if required.


Dr Vijay Maraj


Monday to Friday

Special Interests: General Practice


Dr Matthew King


Monday to Friday

Special Interests: General Practice, Sports Medicine, Children's Health and Skin Disorders

Please note: new patient initial consultations can not be booked online. Call 07 3848 2111 to book an appointment

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Our Registrars

Did you know Wellers Hill Medical Centre is a GPTQ accredited training practice? We are committed to training GP registrars in both their first year and second year of training.

Our registrars are fully qualified medical Doctors who are undertaking advanced training in General Practice. The Royal Australian College of General Practitioners requires aspiring General Practitioners to complete an advanced GP training program. Over at least two years, GP Registrars attend placements at up to four different medical practices. At Wellers Hill Medical Centre, they have an opportunity to work in a highly functioning, and supportive environment that focuses on all aspects of general practice.

Our registrars are closely supervised in all aspects of their clinical work by our GPTQ accredited supervisors, Dr Nicholas Gianarakis and Dr Timothy Copland and at times may ask them to assist in your consultation for their knowledge and advice in your health care.

Our current registrars are Dr Julia Rollston, Dr Vijay Maraj, Dr Matthew King and Dr Kim Le. 

Our Specialists

Valeria Spivak

Dr Valeria Spivak | Psychiatrist


Not currently taking new patients outside of Wellers Hill Medical Centre

Dr Valeria Spivak attained a Bachelor's degree in Medicine with honours from Tyumen State Medical University, Russia, before moving to Australia in 2005. She then embarked on her psychiatry career in Newcastle, NSW, where she undertook the first two years of specialist training before moving to Brisbane in 2015 to complete a further three years at Metro South Addiction and Mental Health Service.

Prior to deciding to focus primarily on private practice, Dr Spivak worked as a Psychiatrist and Clinical Director in Inpatient and ED Mental Health Services at Logan Hospital. With a strong interest in medical education, she also took on the roles of Clinical Lead in Undergraduate Mental Health and Senior Lecturer at Griffith University.

Dr Spivak has extensive experience of treating a wide range of mental health disorders, with a special interest in general adult psychiatry. Her particular areas of interest are mood disorders, anxiety disorders and ADHD.


Dr Theo Theodoros | Psychiatrist


Not currently taking new patients


Dr David Wong | Geriatrician & Neurologist


Dr David Wong brings a unique mix as a dual specialist Geriatrician and Neurologist to patient care offered by Beach Brain.

Geriatricians are renowned for providing comprehensive care to our respected elders and Neurologists are adept artisans that address brain, spinal cord, nerve and muscle disorders that arise in the course of our lives. Both provide holistic and compassionate care in their respective arenas – Dr Wong is well positioned at its interface.

Dr Wong was born and raised in Brisbane, graduated from the University of Queensland in 2009 and undertook his foundation training at the Princess Alexandra Hospital, before pursuing specialist training in both Neurology and Geriatrics in various hospitals throughout South East Queensland and Townsville.

He has particular interests in Stroke, Movement Disorders, Headache and Cognitive Neurology.


Dr Shenaz Seedat | Endocrinologist


Dr Shenaz Seedat completed her Medical degree at The University of Queensland and then underwent Specialist training in Endocrinology at the Princess Alexandra Hospital and Greenslopes Private Hospital, completing this in 2010. She had an established practice in Brisbane prior to relocating overseas in 2013, and has recommenced consulting at Greenslopes Private Hospital since her return in December 2020.

Having gained a wide range of up-to-date expertise while abroad, Dr Seedat is excited to consult in Brisbane again, offering the highest standard of care to her patients. She has extensive experience in a range of endocrine disorders, including continuous glucose monitoring and insulin pump therapy. She believes that optimisation of patient care results from individualisation and education, and actively involves her patients in their healthcare decisions.

Dr Seedat enjoys teaching medical students and junior medical staff. She also regularly provides endocrine presentations for medical professionals and is a member of the Endocrine Society (USA).

Meet our team of caring support staff

These are the people who provide support so beautifully for Wellers Hill Medical Centre


Cathy Sawyer - Practice Manager



Heather, Jenny, Kim, Sarah, Ann, Taheiszha, Kelsey, Hala and Jess


Amy Laki - Office Manager


Donna O'Shea - Chronic Disease Nurse Coordinator


Clinical Nurses

Georgia, Gail, Donna, Jenny, Tanya, Julia and Olivia