Dr Nadir Abbas
Consultant Gastroenterologist & Hepatologist · PhD (Liver Diseases)
Director of Private Gut and Liver Services at House of Health
Dr Nadir Abbas
Dr Nadir Abbas is a Consultant Gastroenterologist and Hepatologist at University Hospitals Birmingham NHS Foundation Trust, holding a PhD from the Institute of Immunology and Immunotherapy and the NIHR Birmingham Biomedical Research Centre — one of the UK’s most prestigious biomedical research institutions. The University of Birmingham ranks #14 globally for gastroenterology and hepatology research.
He trained at the Queen Elizabeth Hospital liver unit, one of the largest liver transplant units in Europe, and works as a full-time NHS consultant at UHB seeing the full breadth of gastroenterology and hepatology conditions.
Professional Memberships
- Royal College of Physicians (RCP)
- British Society of Gastroenterology (BSG)
- British Association for the Study of the Liver (BASL)
- European Association for the Study of the Liver (EASL)
Hospital & Clinical Affiliations
- University Hospitals Birmingham NHS Foundation Trust
- Director of Private Gut and Liver Services at House of Health
- PhD - University of Birmingham
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Read Verified Patient Reviews on DoctifyClinical & Academic Biography
Dr Nadir Abbas is a Consultant Gastroenterologist and Hepatologist at University Hospitals Birmingham NHS Foundation Trust, holding a PhD from the Institute of Immunology and Immunotherapy and the NIHR Birmingham Biomedical Research Centre — one of the UK’s most prestigious biomedical research institutions. The University of Birmingham ranks #14 globally for gastroenterology and hepatology research.
He trained at the Queen Elizabeth Hospital liver unit, one of the largest liver transplant units in Europe, and works as a full-time NHS consultant at UHB seeing the full breadth of gastroenterology and hepatology conditions.
With a peer-reviewed publication record spanning four continents, Dr Abbas has positioned himself as one of the UK’s leading hepatology researchers. His work encompasses landmark national audits, international multicentre outcome studies, and practice-defining clinical guidance — reaching over 10,000 patients globally across more than 15 countries.
He has served as investigator on pivotal studies in primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), acute-on-chronic liver failure (ACLF), cirrhosis and surgical risk, and portal hypertension. His publications appear in the world’s most prestigious journals including the Journal of Hepatology, Hepatology, The Lancet Gastroenterology & Hepatology, and Clinical Gastroenterology and Hepatology.
He has presented at the European Association for the Study of the Liver (EASL) — including a podium presentation at EASL 2022 — and is a recognised contributor to British Society of Gastroenterology clinical guidance. He served as national chair for hepatology trainees at BASL for two years and is an active pharmaceutical industry collaborator investigating novel treatments in liver research.
21+
GI/HEPATOLOGY PUBLICATIONS
10+
MULTICENTRE STUDIES
10,000+
PATIENTS ACROSS STUDIES
15+
COUNTRIES — DATA
10+
TOP-TIER JOURNAL PUBS
3
NATIONAL AUDITS/SURVEYS
Primary Biliary Cholangitis (PBC)
Lead investigator on multiple national & international cohort studies; national audit of 8,968 patients; first-author studies in Journal of Hepatology, Hepatology, CGH, JHEP Reports & APT.
Primary Sclerosing Cholangitis (PSC)
Emerging drug reviews and quantitative imaging studies; non-invasive biomarker assessment; expert command of PSC therapeutics pipeline.
Cirrhosis & Surgical Risk
Lead author on national BSG guidance document; precision medicine framework for cirrhotic patients undergoing non-hepatic surgery.
Acute-on-Chronic Liver Failure (ACLF)
Invited expert review in Expert Review of Gastroenterology & Hepatology; novel treatment paradigm analysis.
Portal Hypertension & Liver Stiffness
Contributing author on landmark studies examining liver stiffness measurement as prognostic tool in PBC across international cohorts.
Institutional Affiliations & Leadership
University Hospitals Birmingham NHS FT
Consultant Gastroenterologist & Hepatologist
University of Birmingham — Institute of Immunology & Immunotherapy
PhD-Centre for Liver and Gastroenterological Research
NIHR Birmingham Biomedical Research Centre
Former Clinical Researcher — Liver & GI Theme
Global PBC Study Group
Contributing Investigator
ERNRare-Liver (European Reference Network)
Contributing Member
British Society of Gastroenterology (BSG)
Fellow & Guidance Author — Liver Section
European Association for the Study of the Liver (EASL)
Member
British Association for Study of the Liver (BASL)
Member — Former National Trainee Chair
Clinical Expertise & Conditions Treated
Dr Nadir Abbas provides a definitive, research-led approach to a broad spectrum of gastrointestinal and liver conditions. By combining his clinical role at a leading transplant centre with his PhD background, he offers precision diagnostics for both common and complex cases.
Specialist Hepatology (Liver)
- Autoimmune Liver DiseaseComprehensive management of PBC, PSC, and Autoimmune Hepatitis, utilising the latest international therapeutic pipelines and second-line treatments.
- Advanced HepatologyExpert evaluation of abnormal liver function tests (LFTs), fatty liver (MASLD/MASH), alcohol-related disease, and viral hepatitis.
- Cirrhosis & ComplicationsSpecialist care for portal hypertension, ascites, and surgical risk optimisation for patients with advanced liver disease.
Gastroenterology & Diagnostics
- Diagnostic GastroscopyPrecision endoscopic evaluation for persistent indigestion, reflux (GORD), and screening for stomach or oesophageal concerns.
- Functional Gut DisordersEvidence-based investigation into IBS, SIBO, and chronic bloating, focusing on identifying root causes rather than merely managing symptoms.
- Change in Bowel HabitsRapid assessment of altered bowel patterns, unexplained weight loss, and iron deficiency anaemia to ensure early detection and peace of mind.
Dr Nadir’s PBC Specialist Care
Because Dr Abbas holds a PhD specifically in PBC, patients travel from all over the country to see him. He is a renowned primary biliary cholangitis specialist who offers a specialist management plan tailored to each patient.
As an autoimmune liver disease expert UK, his research-led approach provides hope for complex cases. He is also a highly skilled autoimmune hepatitis consultant, working hard to protect your liver from immune system attacks.
If you do not respond well to standard UDCA medicine, we provide exclusive access to advanced therapies.
Why Patients Seek Dr Nadir
PhD-Led Insights
Access to diagnostic frameworks developed at the NIHR Birmingham Biomedical Research Centre.
National Authority
Care guided by the same expert who authors the National BSG clinical standards.
Rapid Diagnostics
Streamlined access to FibroScan and high-definition endoscopy for immediate answers.
Compassionate Clarity
A listening-first approach that translates complex medical data into a clear, actionable recovery plan.
How Dr Nadir’s Care Helps You
PhD-Led Expertise
Specialist care for high-risk cases and patients who do not respond well to standard UDCA medicine
Therapeutic Innovation
Expert access to advanced, second-line therapies like Ocaliva, Iqirvo (Elafibranor), and Bezafibrate
Symptom Management
Evidence-based plans to safely stop debilitating PBC fatigue and severe skin itch
Prognostic Monitoring
Advanced use of painless FibroScan technology and exact blood tests to track your liver health
International Education & Collaborations
EASL School on Autoimmune Liver Conditions — Larissa, Greece
Attending the prestigious EASL School on Autoimmune Liver Conditions in Larissa, Greece — a highly selective European programme bringing together hepatology trainees and faculty from across the continent to advance expertise in autoimmune liver diseases including primary biliary cholangitis, primary sclerosing cholangitis, and autoimmune hepatitis.
This programme reflects a commitment to staying at the forefront of hepatology through international collaboration, evidence synthesis, and direct engagement with global liver disease experts.
EASL School on Portal Hypertension — Freiburg, Germany
Attending the EASL School on Portal Hypertension at the Universitätsklinikum Freiburg, Germany — the birthplace of the TIPSS (Transjugular Intrahepatic Portosystemic Shunt) procedure. This school was held at one of the most historically significant institutions in hepatology, home to Professor Martin Rossle, the pioneer who invented the TIPSS procedure.
Being taught portal hypertension management at the institution where TIPSS was conceived, by the faculty who shaped the field, represents a unique and formative experience in advanced hepatology training.
Peer-Reviewed Publications
Publication Record — GI & Liver Disease
Listed in reverse chronological order. Source: PubMed (pubmed.ncbi.nlm.nih.gov/?term=nadir+abbas), verified March 2026. Nadir Abbas is highlighted where listed as author.
Journal of Hepatology
IF ~25
3 publications
Hepatology
IF ~17
1 publication
The Lancet GH
IF ~30
1 publication
Clin. Gastro & Hepatology
IF ~14
2 publications
JHEP Reports
IF ~8
2 publications
Frontline Gastroenterology
BSG Journal
4 publications incl. national guidance
Alimentary Pharm & Ther
IF ~7
2 publications
Expert Review GH
IF ~5
2 invited reviews
Current Opinion in Pharm
IF ~6
1 invited review
Institutional Affiliations
University Hospitals Birmingham NHS FT
Consultant Gastroenterologist & Hepatologist
University of Birmingham — Institute of Immunology & Immunotherapy
PhD · Centre for Liver and Gastrointestinal Research
NIHR Birmingham Biomedical Research Centre
Former Clinical Researcher — Liver & GI Theme
Global PBC Study Group
Contributing Investigator
ERN Rare–Liver (European Reference Network)
Contributing Member
British Society of Gastroenterology (BSG)
Fellow & Guidance Author — Liver Section
European Association for the Study of the Liver (EASL)
Member
British Association for Study of the Liver (BASL)
Member · Former National Trainee Chair
Awards & Recognition
SPR Trainee Audit & Quality Improvement Award Winner
British Society of Gastroenterology · Guts UK
Nadir (centre) with Dr Riadh Jazrawi of Dr Falk (left) and Prof Andy Veitch, BSG President 2022–2024 (right)
Liverdojo.com — ‘Know Your Liver’
A nationally recognised patient education initiative: a multilingual website and YouTube channel providing accessible liver health information in commonly spoken UK languages — bridging the health literacy gap for BAME communities.
“Liverdojo.com will educate and empower both potential and diagnosed liver patients to make their own informed health choices and reduce the cost burden on the NHS.”
Developed alongside PhD research in cholestatic liver diseases at the Queen Elizabeth Hospital Liver Unit, University Hospital Birmingham NHS Trust. Received a £10,000 Guts UK / Dr Falk Charity Award and endorsement from both the BSG and BASL.
40
UK LIVER DEATHS DAILY
¾
CIRRHOSIS UNDIAGNOSED
2B
YOUTUBE USERS REACHED
Conference & Academic Presentations
BASL Annual Meeting – Oral Presentation, Main Plenary
Need a Liver Disease Second Opinion in the UK?
If you have been diagnosed with a liver condition or have abnormal liver tests, Dr Nadir Abbas offers specialist hepatology consultations and second opinions for complex liver disease.
Consultant-Led Pathway
Private Consultation
In this 30-minute session, Dr Abbas uses his PhD research background to find the root causes that standard tests often miss. This is the essential first step for anyone needing a definitive liver disease second opinion from a recognised UK expert.
Advanced Diagnostic Testing
Get a clear picture of your health with fast access to high-definition private gastroscopy or painless FibroScan technology. These tools allow Dr Abbas to check your digestive tract and measure liver scarring accurately without uncomfortable biopsies.
A PhD-Led Diagnosis
You will receive a straightforward explanation of your health, built on Dr Abbas’s role as a national lead in PBC and liver disease. This stage gives you a professional roadmap and total peace of mind about your future.
A Recovery Plan
Dr Abbas creates a plan just for you, which can include next-generation medicines (like Iqirvo or Ocaliva) not usually found in standard clinics. Whether reversing fatty liver or managing complex autoimmune conditions, our goal is to restore your health and energy.
Know Your Costs Upfront
We believe you should always know the cost of your care upfront. Dr Abbas operates with a mandate of absolute honesty regarding all clinical fees.
Important Note: Any advanced diagnostic tests, such as painless FibroScan, high-definition endoscopy, or specialised blood panels, are priced and billed separately.
Feedback from Our Happy Patients
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