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Mr Reza Kalbassi

Mr R Kalbassi

Consultant Colorectal, Robotic/Laparoscopic and General Surgeon


FRCS (Gen Surg)

He provides a comprehensive surgical service at Beacon Hospital which includes Robotic and Laparoscopic benign and cancer surgery with specialist clinics for treatment of colorectal and pelvic floor conditions.

He leads the Pelvic Floor Centre at Beacon Hospital which treats patients with Pelvic floor dysfunction, Faecal incontinence, defeacation disorders and pelvic organ prolapse. This is a Multidisciplinary team service with nationally and internationally recognised specialists.

Mr. Kalbassi is Ireland’s representative to the Pelvic Floor Society an affiliate of the Association of Coloproctology of Great Britain and Ireland.

He is one of the only internationally accredited endoscopists by JAG at Beacon Hospital and in Ireland( Joint Advisory Group for Endoscopy – accredited in 2009). He has trained junior doctors and consultants in endoscopy.

He offers diagnostic and Therapeutic Gastroscopy and Colonoscopy including EMR (Endoscopic Mucosal Resection for complex colorectal polyps) by way of referral to his clinics or via direct access endoscopy service.

He also offers minimally invasive surgery (Keyhole surgery) including Transanal minimally invasive surgery for early rectal cancer, complex rectal polyps, colorectal cancer, pelvic organ prolapse, pelvic floor surgery, abdominal wall and groin hernias, gallbladder/ gallstone disease.

He is an assistant Clinical Professor in Surgery and Surgical specialties at UCD School of Medicine, University College Dublin. He also is a postgraduate trainer/ faculty at the Royal College of Surgeons in Ireland involved in regular postgraduate training.

He was educated at Wesley College Dublin and the Royal College of surgeons in Ireland. He completed his specialist surgical training in Ireland and England. He is accredited in minimally invasive/ Laparoscopic ( keyhole) surgery following his Laparoscopic Colorectal surgery fellowship in the United Kingdom.

He was previously Consultant Colorectal Surgeon at Northumbria Healthcare NHS trust Hospitals and Nuffield Health Newcastle Upon Tyne Hospital in England. He was responsible for training consultant colleagues in minimally invasive colorectal surgery, developing and establishing Transanal minimally invasive surgery (TAMIS) for early rectal cancer, setting up pelvic floor surgery service and enhanced recovery programme in colorectal surgery.

He was head of Colorectal Surgery Department at Northumbria trust Hospitals for two and a half years before his return to Dublin.

He was appointed as a national preceptor and trainer in minimally invasive/ Laparoscopic colorectal surgery in England in 2011. He has trained and assessed several consultants in this field. He is well known in international Laparoscopic and minimally invasive surgery forums. He has chaired many seminars and training workshops. He has been guest and keynote speaker at several international congresses of minimally invasive surgery.


His areas of research have been chronic constipation and biological markers of cancer. He has presented and lectured in these areas and has been published in several peer review journals. He is on the editorial board of Annals of Colorectal research. He is also a reviewer for the British Journal of Surgery.


– Royal college of Surgeons in Ireland
– Association of Coloproctology of Great Britain and Ireland
– The Pelvic Floor Society (ACPGBI)
– European Society of Coloproctology


Suite 4, Beacon Consultants Clinic

Mondays: 14.00-17.00

Wednesdays (1 & 3): 09.00-13.00

Fridays: 09.00-13.00

D8 SCR city Colorectal clinic

Wednesdays (2 & 4) 10.00-13.00

Recent Articles by Mr Reza Kalbassi



Mr Diarmuid Ó Ríordáin

Mr. Diarmuid S. Ó Ríordáin, MD, FRCSI, FRCS (Gen)
Consultant in General, Colorectal, Robotic and Laparoscopic Surgery.


Special Interests

Colorectal Surgery; Surgical Oncology; Robotic Surgery, Laparoscopic Surgery.

Current Positions

Having served as Chief of Surgery at Beacon Hospital from 2008 to 2014 Mr. Ó Ríordáin holds the posts of Consultant Colorectal Surgeon, Head of Colorectal Surgery and leads the Gastrointestinal Multidisciplinary Team at Beacon Hospital. Mr. Ó Ríordáin is Consultant Surgeon at Tallaght University Hospital in Dublin and Naas Hospital since 2001. He is Lecturer in Surgery at Trinity College Dublin and Assistant Professor in Surgery at University College Dublin.

Clinical Expertise

Mr. Ó Ríordáin’s major areas of surgical expertise are in Cancer of the Colon and Rectum and in Minimally Invasive Robotic and Laparoscopic and Transanal Surgery for colorectal cancer. Mr. Ó Ríordáin has extensive leadership experience in this area having initiated and lead the development of multidisciplinary colorectal cancer teams at the University of Leeds, Tallaght University Hospital and at the Beacon Hospital. His expertise includes major pelvic cancer problems including pelvic exentoration and recurrent rectal cancer. In addition to his Colorectal Cancer interest, Mr. Ó Ríordáin also performs robotic, laparoscopic, minimally invasive transanal, pelvic and perianal surgery for the spectrum of benign colorectal disease, including colorectal polyps, inflammatory bowel disease, diverticular disease and rectal prolapse. He performs complex benign colorectal surgery including restorative surgery for patients with complicated stomas and abdominal wall hernias and complex anal fistulae.

Mr. Ó Ríordáin has had a major focus on Minimally Invasive Surgery since the 1990’s and very extensive experience in this area. Having been to the fore in the development of laparoscopic colorectal surgery in Ireland in the early noughties, Mr. Ó Ríordáin has more recently lead the development of robotic colorectal surgery becoming the first accredited robotic colorectal surgeon in Ireland in 2017, and one of only 25 in Europe, through the European Academy of Robotic Colorectal Surgery (EARCS). He leads the Robotic Colorectal Surgery Programme at Beacon Hospital has the largest experience in the country and has recently published its outcomes in the Journal of Robotic Surgery.

Mr. Ó Ríordáin also practices as a general surgeon providing minimally invasive and day-care surgery for both elective general surgical problems, including hernias, gallbladder disease and gastro-oesophageal reflux disease and a full endoscopy service including colonoscopy and polypectomy. He provides an emergency on-call service in both the public and the private sector.

Education, Training and Experience

Mr. Ó Ríordáin is a graduate of University College Cork and having completed a Senior Registrar training programme in Colorectal and General Surgery in Ireland, and attaining Specialist Fellowship of the RCSI, he then moved to the United States for further senior clinical and research experience in Colorectal and Oncologic Surgery. Mr. Ó Ríordáin trained at some of the leading academic medical centres in the United States including The Mayo Clinic, Brigham and Women’s Hospital, Harvard Medical School and Memorial Sloan Kettering Cancer Centre in New York where he was awarded the prestigious and competitively awarded International Fellowship in Surgical Oncology, where he specialised in gastrointestinal oncology.

In 1998 Mr. Ó Ríordáin moved from the US to the UK, to take up the post of Consultant Surgeon and Senior Lecturer at St James’s Hospital in Leeds, a major teaching hospital of the largest NHS Trust in the UK, and at the University of Leeds Medical School. Here, Mr. Ó Ríordáin played a lead role in the development and organization of the Gastrointestinal and Colorectal Cancer Surgical service, Laparoscopic Surgery Programme and lead the development of the Multidisciplinary Gastrointestinal Cancer team. In 2001 Mr. Ó Ríordáin moved back to Ireland to the post of Consultant Surgeon at Tallaght University Hospital, Dublin.


Mr. Ó Ríordáin’s research interests include Colorectal Cancer, Multidisciplinary Cancer Care, Robotic and Laparoscopic Colorectal Surgery. He was awarded a Doctorate in Medicine NUI 1993 for his thesis based on research in surgical immunology. He has authored more than 60 peer reviewed scientific surgical articles and over 100 lectures and presentations to learned societies in Ireland and Internationally.

He takes an active involvement in undergraduate and postgraduate teaching. He is affiliated to the medical schools at Trinity College through Tallaght University and Naas Hospitals and at University College Dublin through Beacon Hospital.

Memberships of Professional Bodies

Society of Surgical Oncology USA
Surgical Discussion Group
Irish Society of Coloproctology
Association of Coloproctology of Great Britain and Ireland
International Society of Surgery
European Academy of Robotic Colorectal Surgery

Professor Rob Hannon

Professor Rob Hannon MB, BCh. BAO. FRCS. FRCSI, Consultant in General, Colorectal and Laparoscopic Surgery.

Rob is a medical graduate of University College Dublin and the Royal College of Surgeons of England. He completed Higher Surgical Training with subspecialty training in Colorectal Surgery in Manchester in 2008. He has completed specialist fellowship training in Laparoscopic Colorectal Surgery at Hope Hospital, Salford, and Advanced Pelvic Malignancy at the Christie Hospital Manchester.

He returned to Ireland to practise as a General Colorectal and Laparoscopic Surgeon at Daisy Hill Hospital, Newry, Co. Down, in 2008. While there he introduced Laparoscopic Colorectal Surgery and The Enhanced Recovery After Surgery Programme (ERAS). He was Deputy Chair of the Southern Area Trust Multidisciplinary Colorectal Cancer Team and Lead Clinician for Clinical Governance.

Rob’s areas of specialist interests include open and laparoscopic surgery for colorectal cancer and inflammatory bowel disease, gastroscopy and colonoscopy, treatment of benign ano-rectal conditions, gallbladder surgery, open and laparoscopic hernia surgery and surgery for minor skin or subcutaneous lesions.