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Dr Alissa Walsh

DPhil FRACP

Gastroenterologist

Live bookings available

28 years of experience

Headington, OX3 7RP

30 connections in healthcare

Skill endorsed

by Dr Jeremy Cobbold, Mr Daniel Urriza Rodriguez and 4 other professionals

4.98

/5

(246 reviews)

Live bookings available

28 years of experience

Headington, OX3 7RP

30 connections in healthcare

Skill endorsed

by Dr Jeremy Cobbold, Mr Daniel Urriza Rodriguez and 4 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Colonoscopy
96
4
Gastroscopy
72
2
Irritable Bowel Syndrome (IBS)
47
1

Contact

Book online


Expert in:

About Dr Alissa Walsh


To make an appointment, please call  07756 859468 or email karen.arevalo@nuffieldhealth.com


Dr Alissa Walsh (DPhil FRACP) is a Consultant Gastroenterologist at the Oxford University Hospitals NHS Trust and Nuffield Health, The Manor Hospital, Oxford. Dr Walsh has extensive international experience in clinical gastroenterology and endoscopy, including diagnostic and therapeutic gastroscopy and colonoscopy. She has received training with the National Bowel Cancer Screening team. Dr Walsh has a sub-specialty interest in inflammatory bowel disease (Crohn's disease and ulcerative colitis).

Dr Walsh completed her gastroenterology training in Australia and was awarded her consultancy from the Royal Australian College of Physicians in 2006. In 2007-2008 Alissa was a Clinical Fellow at the John Radcliffe Hospital. From 2008 Alissa was the Head of the Inflammatory Bowel Disease Unit at St Vincent's Hospital in Sydney. In 2018 Alissa completed a PhD at the University of Oxford, focusing on Inflammatory Bowel Disease. She has subsequently become part of the Consultant Gastroenterology team at the John Radcliffe Hospital.

Dr Walsh is renowned for being a leader and is a compassionate doctor who delivers the best quality of care for her patients. Her clinical and research interests include patient-reported outcomes, chronic disease remote monitoring, disease activity indices, and faecal transplantation. Digital management and wearables to investigate the role of stress and abdominal symptoms is one of her current projects. Dr Walsh also has an interest in teaching and is an Associate Fellow at Green Templeton College, University of Oxford.

Dr Walsh is the cofounder and a current director of a medical charity, Crohn's colitis Cure. She is also a member of the British Society of Gastroenterology and European Crohn's and Colitis Organisation.


Subspecialties

  • Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease

Areas of expertise

All
Reviews
(459)
Skill Endorsements
(21)

Click the bar to read reviews or skill endorsements

Colonoscopy
96
4
Gastroscopy
72
2
Irritable Bowel Syndrome (IBS)
47
1
Bloating
44
1
Diarrhoea
37
1
Upper Gastrointestinal Conditions (Oesophagus & Stomach)
29
Heartburn (Acid Reflux)
26
1
Constipation
24
1
Colitis (Ulcerative Colitis)
18
3
Blood in Stool / Rectal Bleeding (Haematochezia)
16
Inflammatory Bowel Disease (IBD)
12
1
Bowel Cancer Screening
7
1
Functional Bowel Disease
5
Stomach / Abdominal Pain
2
2
Iron Deficiency Anaemia
4
Sigmoidoscopy
2
1
Hiatus Hernia
3
Endoscopy (OGD)
3
Gastroparesis
3
Crohn's Disease
1
1
Haemorrhoids
1
Coeliac Disease
1
Gastroenteritis
1
Weight Loss
1
Gastric (Stomach) Ulcers
1
Food Intolerance
1
EBV (Mononucleosis/Glandular Fever)
1
Nausea and Vomiting
1
Medical Weight Loss
1
Achalasia
Barrett's Oesophagus
Colorectal Cancer
Dyspepsia (Indigestion)
Gastrointestinal Bleeding
Oesophageal Cancer
Oesophageal Spasm
Oesophagitis
Percutaneous Endoscopic Gastrostomy (PEG)
Pyloric Stenosis

Registered with

General Medical Council

No. 4670393


Education

University of Queensland

Medicine

Graduated 1998


Qualifications

Education

  • Graduated from medical school 1998 MBBS
  • Gastroenterology Specialist Training completed 2006 FRACP
  • PhD Oxford 2018

Memberships

  • GMC 4670393
  • European Crohn's and Colitis Organisation
  • British Society of Gastroenterology

Languages spoken

  • English

Insurers

  • Bupa Fee Assured
  • General and Medical
  • Simply Health (Dental)
  • The Exeter
  • Bupa
  • Cigna
  • Benenden Health
  • Freedom Health Insurance
  • WPA
  • Healix Health Services
  • AXA Health
  • Vitality
  • Aviva Health

Fees

  • New appointment

    £300
  • Follow-up appointment

    £180
*May vary on location

Locations

Nuffield Health The Manor Hospital Oxford

Beech Road, Headington, United Kingdom, OX3 7RP

4.86(1,232 reviews)

Opening hours

Monday
12:30 - 16:30
Tuesday
Wednesday
Thursday
09:30 - 12:00
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Opening hours

Monday
12:30 - 16:30
Tuesday
Wednesday
Thursday
09:30 - 12:00
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Areas of expertise

All
Reviews
Skill Endorsements
Colonoscopy
96
4
Gastroscopy
72
2
Irritable Bowel Syndrome (IBS)
47
1

Contact

Book online

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Dr Alissa Walsh is friendly, professional, knowledgeable, and reassuring with patients. She gives clear, detailed explanations for conditions and treatment plans, ensuring understanding of procedures like colonoscopy and gastroscopy. Dr Walsh listens to concerns, takes a thorough approach to investigations, and provides excellent care. Many patients benefit from her help with gastrointestinal issues such as irritable bowel syndrome and bloating.

5
verified patient
14 Aug 2026

Dr Walsh was very personable, understanding and easy to get on with. I was led around to where I needed to go or someone always came to me so there was never any uncertainty

5
verified patient
09 Aug 2026

Dr Walsh is an excellent and very caring doctor. She is always willing to give an explanation to what ever is happening to you. I highly recommend her.

Patient seen for:
5
verified patient
29 Jul 2026

Dr Walsh is really lovely and calming, which immediately put me at ease. Her approach is professional and thorough but in a caring way. There was good communication throughout the appointment. And I was happy about further treatment options and assessments that have been suggested. Above all, I feel comfortable and confident under her care. Thank you

5
verified patient
22 Jul 2026

Dr Walsh genuinely listens, takes the time to explain things clearly and treats you with compassion. She repeatedly goes above and beyond and is exceptionally attentive. Crohn’s is complicated and gnarly, I am so sad that my child has to go on this journey, but am utterly relieved that she has someone like Dr Walsh to guide her and oversee her care. Dr Walsh’s knowledge of Crohn’s and her clinical judgment are exemplary, and she provides the highest standard of care. Can wholeheartedly recommend to anyone seeking an exceptional gastroenterologist for Crohn’s.

5
verified patient
10 Jul 2026

After having no diagnosis for 15 months, local doctor didn’t have a clue as it was very complicated. I saw Alyssa, she was lovely, caring & listened. Within a week she had cracked it!! It was life changing, I would not hesitate in recommending anyone to her.

5
verified patient
01 Jul 2026

Dr Walsh was extremely kind and understanding. I didn’t feel rushed at all, , Dr Walsh was very thorough and patient when talking to me explaining everything in detail very clearly. I left the appointment feeling much more reassured.

Patient seen for:
5
verified patient
23 Jun 2026

A consultant who genuinely cares. I think I’ve been one of Alissa’s more challenging cases as getting to where I am now has been a very long process of trial and error. Understanding the complexity behind digestive system problems and Crohn’s is not easy but Alissa brings a wealth of experience to the table and has an excellent rapport with her patients with her kind and thoughtful approach. I had an appointment with her yesterday and as always, I felt she took a real interest in my care and I never felt rushed, even though I’m sure we took more than our allotted amount of time. Ultimately, there is presently no cure for Crohn’s but Alissa is really up to date with the latest treatments to manage the illness and I feel lucky to have her as my consultant. Thank you Alissa!

5
verified patient
22 Jun 2026

Dr Walsh has always been very supportive and I am fortunate to have found a professional that I trust completely.

Patient seen for:
5
verified patient
21 Jun 2026

Professional and empathetic manner with clear explanations as to how to proceed

Patient seen for:
5
verified patient
12 Jun 2026

Professional and thorough as always!

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Skill Endorsements

Dr Walsh is an outstanding Gastroenterologist with particular expertise in management of inflammatory bowel diseases.

27 Feb 2026
Endorsed for
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease
Colonoscopy
Colitis (Ulcerative Colitis)

Dr Jeremy Cobbold

Dr Jeremy Cobbold

Gastroenterologist
Is a colleague

I have always found Alissa engaging and knowledgeable. Patients speak highly of her caring, considered, and thorough approach. Would recommend.

23 Nov 2025
Endorsed for
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease
Colonoscopy
Stomach / Abdominal Pain

Mr Daniel Urriza Rodriguez

Mr Daniel Urriza Rodriguez

Vascular Surgeon
Is a colleague

Caring and compassionate colleague. Expert in IBD and a skilled endoscopist.

25 Oct 2025
Endorsed for
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease
Colitis (Ulcerative Colitis)

Dr. Arif Hussenbux

Dr. Arif Hussenbux

Gastroenterologist
Is a colleague

Dr Walsh is a highly experienced and skilled gastroenterologist, and is renowned in her field. She is compassionate and respectful with patients.

07 Oct 2025
Endorsed for
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease
Colitis (Ulcerative Colitis)

Dr. Tim Ambrose

Dr. Tim Ambrose

Gastroenterologist
Is a colleague

FAQ

What are Dr Alissa Walsh's reviews like?

Dr Alissa Walsh's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 246 reviews.

What languages does Dr Alissa Walsh speak?

Dr Alissa Walsh speaks English

Where is Dr Alissa Walsh located?

Dr Alissa Walsh primarily practices at Nuffield Health The Manor Hospital Oxford, located at Beech Road, Headington, United Kingdom, OX3 7RP
See more locations

What are Dr Alissa Walsh working hours?

Dr Alissa Walsh is working Monday (12:30 - 16:30), Thursday (09:30 - 12:00)

Find where Dr Alissa Walsh operates today

Does Dr Alissa Walsh accept new patients?

Dr Alissa Walsh generally accepts new patients.

Get in touch with this specialist to enquire as a new patient