Dr Siddarth Sethi

Gastroenterologist and Hepatologist
Bathurst NSW, Canberra ACT, Adelaide SA & Telehealth


Dr Sethi is an active clinician treating inflammatory and functional bowel disorders inclusive of cancer, reflux disease (GORD), altered bowel habit, iron deficiency anaemia, coeliac disease, colitis and Crohns disease, unexplained abdominal pain and abnormal liver function inclusive of hepatitis, cirrhosis and complications of long-term alcohol abuse.

Apart from abdominal injuries sustained in the workplace and in motor vehicle accidents, Dr Sethi regularly opines on the effects of medication such as NSAIDS and pain medication with respect to stomach and oesophagus symptoms and claimed altered bowel function as a consequence of anxiety and mental health disorders.

He is trained and active in endoscopy procedures and can comment on complications arising from such procedures. He maintains admission rights to Westmead Private Hospital, Sydney and Bankstown Day Surgery Clinics.

Dr Sethi has given evidence as an expert witness in work related matters, motor vehicle trauma, gastrointestinal endoscopy outcomes and obesity surgery procedures and has presented as guest speaker on the topic of autoimmune conditions impacting return to work.

Accreditation and Schemes:

  • American Medical Association Guides to the Evaluation of Permanent Impairment, 4th Ed 
  • American Medical Association Guides to the Evaluation of Permanent Impairment, 5th Ed 
  • Comcare Guide to the Assessment of Degree of Permanent Impairment 
  • Department of Veterans’ Affairs 
  • Medical Negligence 
  • Motor Accident Injury Accreditation Scheme SA 
  • Return to Work South Australia 
  • Seafarers 
  • SIRA NSW Motor Accident Guidelines Authorised Health Practitioner (AHP)
  • SIRA NSW Workers’ Compensation Permanent Impairment Assessor (PIA)

Communication Matters.

Securely book, manage and collaborate directly with your medical experts. It just makes sense!

Determining causal relationship between analgesic medications & GI Symptoms

Gastroenterologist and Hepatologist, Dr Siddarth Sethi discusses the challenge of distinguishing between gastrointestinal symptoms (such as Irritable Bowel Syndrome and GORD) that have resulted from the use of analgesics to manage pain after a crush injury, versus those symptoms that were pre-existing or that would have developed regardless of the medications used.


  • To what degree do we attribute the gastrointestinal symptoms to the injury?
  • Would the gastrointestinal symptoms have resulted regardless?
  • What is the level of impairment that has resulted from these attributable symptoms?

Distinguishing between Irritable Bowel Syndrome & medication-related GI symptoms

In determining the impact of an injury on an individual, it can be difficult to differentiate between medication-related symptoms and pre-existing conditions.

In this video-tutorial, Dr Sethi discusses Irritable Bowel Syndrome and how to distinguish it from other gastrointestinal symptoms that result from the use of Analgesics and other pain medications.

Immuno-suppressant medications & COVID-19- are these patients at higher risk?

Dr Sethi discusses whether patients with an auto-immune disease who are prescribed immunosuppressant medications are at higher risk of developing COVID-19.

When to use a Gastroenterologist and Hepatologist in a Personal Injury claim

What is the role of a Gastroenterologist and Hepatologist in the medicolegal setting, and when would you call on their expert medical advice? Dr Siddarth Sethi discusses the kinds of injuries and conditions Gastroenterologists and Hepatologists assess, ranging from stomach, bowel, and liver issues (i.e.; liver disease related to medications, reflux, abdominal pain, irregular bowel habits, medication-related GI symptoms).

His expert medical opinion is frequently sought to conduct medication reviews, Permanent Impairment assessments, IMEs and Medical Negligence opinions.

Book an Appointment with Dr Siddarth Sethi