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Dr. Laura Marelli

MD, CCT Gastroenterology

Gastroenterologist

24 years of experience

Harpenden, AL5 4BP

(+1 more)

5 connections in healthcare

Skill endorsed

by Dr Paul Kirk

-

/5

(0 reviews)

24 years of experience

Harpenden, AL5 4BP

(+1 more)

5 connections in healthcare

Skill endorsed

by Dr Paul Kirk

Contact

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Expert in:

About Dr. Laura Marelli

I have been working as a Consultant Gastroenterologist since 2010, helping patients with a wide range of digestive problems. These include indigestion, acid reflux, abdominal pain, bloating, diarrhoea, constipation, and food intolerances. I have a specialist interest in diagnostic and therapeutic endoscopy, colonoscopy and capsule endoscopy.

I specialise in the diagnosis and management of inflammatory bowel diseases, including Crohn's disease and ulcerative colitis, as well as bowel cancer screening. I also have a particular interest in treating functional and autoimmune gastrointestinal conditions such as irritable bowel syndrome (IBS), coeliac disease, dyspepsia, and gastro-oesophageal reflux disease. In addition, I offer expertise in managing rare and complex disorders including microscopic colitis and eosinophilic oesophagitis.

Over the years, I have performed more than 5,000 gastroscopies and over 5,000 colonoscopies, and have reported more than 1,000 capsule endoscopies. I have extensive experience in colonoscopy and advanced polyp removal and have been accredited to perform bowel cancer screening colonoscopies since 2012. I am the lead gastroenterologist for the colo-rectal multidisciplinary meeting (MDT) and the polyp MDT in my NHS hospital and I am an expert in advanced complex polyp removal.

Since 2012, I have been the Director of the North East London Bowel Cancer Screening Centre, reflecting my strong interest in the screening and prevention of digestive disorders.

I currently serve as the Endoscopy Lead at my NHS hospital, as well as the Endoscopy Lead for North East London. In these roles, I focus on ensuring that every procedure is performed safely, comfortably, and to the highest possible standard.

Teaching and training are also important parts of my work. I have been teaching on JAG endoscopy courses since 2009 and I have been the North East London Lead for the London Endoscopy Training Academy since its foundation in 2022.

My approach is patient-centred: I take the time to listen, explain, and work with you to find the best way forward for your digestive health.

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Subspecialties

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

Areas of expertise

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Stomach / Abdominal Pain
1
Upper Gastrointestinal Conditions (Oesophagus & Stomach)
Swollen Stomach
Swallowing Disorder (Dysphagia)
Polyposis Syndromes
Pelvic Floor Dysfunction
Oesophagitis
Nausea and Vomiting
Microscopic Colitis
Irritable Bowel Syndrome (IBS)
Hiatus Hernia
Inflammatory Bowel Disease (IBD)
Helicobacter Pylori Infection
Heartburn (Acid Reflux)
Gastro-Oesophageal Reflux Disease (GORD)
Gluten Intolerance
Gastritis
Gastric (Stomach) Ulcers
Functional Gut
Functional Bowel Disease
Dyspepsia (Indigestion)
Diarrhoea
Colon Cancer Screening
Crohn's Disease
Gastroscopy
Constipation
Small Bowel Capsule Endoscopy
Colon Polyps
Stool Testing
Colitis (Ulcerative Colitis)
Sigmoidoscopy
Coeliac Disease
Endoscopy (OGD)
Bloating
Colonoscopy
Bowel Cancer
Bowel Cancer Screening

Registered with

General Medical Council

No. 6108046

European Society of Gastrointestinal Endoscopy (ESGE)

No. 30399099

Royal College of Physicians

No. 169512

British Society of Gastroenterology (BSG)

No. BSG66316


Education

University of Insubria

Medicine

Graduated 2002


Publications

Read publications and papers written by this specialist.

25 / 05 / 2025

Transforming transnasal endoscopy services: A multicentre service evaluation pilot project - PubMed

Published in Clin Med (Lond)

06 / 01 / 2025

Can GastroPanel be used as a triage tool to select patients with advanced atrophic gastritis for gastroscopy? A prospective clinical validation study - PubMed

Published in BMJ Open Gastroenterol .

01 / 11 / 2022

Diagnostic Performance of a Noninvasive Breath Test for Colorectal Cancer: COBRA1 Study - PubMed

Published in Gastroenterology

01 / 04 / 2013

A pilot study comparing ESO-2 capsule endoscopy with conventional upper endoscopy for the assessment of uncomplicated heartburn and dyspepsia - PubMed

Published in Frontline Gastroenterol


Languages spoken

  • English
  • Italian

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Locations

Spire Harpenden Hospital

Ambrose Lane, Harpenden, United Kingdom, AL5 4BP

4.88(1,518 reviews)

Opening hours

Monday
09:30 - 12:3013:30 - 16:00
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Opening hours

Monday
09:30 - 12:3013:30 - 16:00
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

9 Harley Street

9 Harley Street, London, United Kingdom, W1G 9QY

4.81(805 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Contact

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Reviews

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Skill Endorsements

08 Oct 2026
Endorsed for
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease
Stomach / Abdominal Pain

Dr Paul Kirk

Dr Paul Kirk

Cardiologist
Is a colleague

Find out more on the Doctify Health hub for Dr. Laura Marelli's specialty, Gastroenterology.