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Our Doctors




Dr Wutchak graduated from the University of Western Australia in 1993 and moved to Collie in 1999.  In addition to family medicine, he practices anaesthetics, obstetrics and has a special interest in sports medicine and skin cancer.

Away from work he is a dedicated family man to his wife and 3 children.

Peter enjoys most sports especially running, golf and is a keen follower of cricket and a passionate Hawthorn supporter.

Dr. Jan Van Vollenstee MBChB (Pretoria), FCS (SA), M.Med (Surg), FRACGP


Dr Van Vollenstee arrived from South Africa at the start of 2006 but has vast experience of more than 30 years in general practice and 20 years in general surgery.  He also is a practicing GP obstetrician.  Since arriving in Australia he has developed a special interest in skin cancer medicine.

Jan loves golf! He and his wife are active members of the Collie golf club

Dr Adrian Lee MBBS (UTas), FRACGP, JCCA


Dr  Lee has returned back to CRVMC after completing his training in General Practice and Procedural Anaesthetics.  Dr Lee studied medicine at the University of Tasmania and was a part of our team at CRVMC in 2011 and 2013.  Originally from Malaysia, he is able to speak several languages including Chinese.

Dr Mohammed (Mo) Ashfaq MRCS, FRACGP, MCEM


Dr Ashfaq is an experienced doctor from England. He joined our team at Collie River Valley Medical Centre in August 2015. Dr Ashfaq (also known as Dr Mo) completed GP training in the UK and has vast medical experience especially in emergency care.


Shankar Paramaswaran MBBS

ACRRM Registrar

Dr Paramaswaran has been working at CRVMC since July 2015. He previously worked at Rockingham Kwinana General Hospital and Fremantle Hospital since 2009. For 10 years prior to that, Dr Paramaswaran was a doctor in Malaysia after training in India.


Dr Alan Bosco MBBS

GP Registrar

Dr Bosco joined our team in mid 2016 as a GP Registrar. He trained in India then worked in Malaysia prior to moving to Australia in 2011. Dr Bosco has worked extensively in orthopaedics before commencing his training in General Practice.




GP Registrar

Dr Smith joined CRVMC in early 2018 and has a special interest in women’s health. Originally from Karratha, Dr Smith graduated from UWA in 2008. Since then, she has worked at Fiona Stanley Hospital, Albany Health Campus and King Edward Memorial Hospital. Dr Smith has nearly completed a Diploma of Royal Australian College of Obstetricians and Gynaecologists (DRANZCOG).

Dr Marelene Oelofse MBBCh

GP Registrar

Dr Oelofse has 20 years experience in the healthcare sector working locally and in South Africa. After starting her career in nursing, she extended to medical training graduating in 2012. In 2015, Dr Oelofse relocated to Australia and has a special interest in rural medicine.


Dr Tricia Cheah MBBS

GP Registrar

Dr Cheah is a Perth local and graduated from UWA in 2014. After working in a number of Perth hospitals including Sir Charles Gairdner, Fiona Stanley and most recently the Perth Children’s Hospital, she commenced working as a GP Registrar at CRVMC at the beginning of 2020. Dr Cheah spent a number of years working in both adult and paediatric Ear, Nose & Throat surgery, and would like to further her interest in Sports Medicine.