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Dr. Zia Mazhar

Verified Gastroenterology Brentwood

Dr. Zia Mazhar

2 years of experience 5.0 (58 verified reviews)

7,381+
Patients seen
2
Years in practice
3
Publications
1
Languages spoken

PROFILE SUMMARY

About Dr. Zia Mazhar at a glance

Dr. Zia Mazhar is a Gastroenterology practitioner based in Brentwood, United Kingdom, practising at Universidad Complutense de Madrid Teaching Hospital. They have 41+ years of clinical experience. Procedures focus on gp consultation, annual physical exam, vaccination administration, minor procedure (skin). Educated at Universidad Complutense de Madrid (MD, 2020). Serves patients in Brentwood, United Kingdom and the surrounding area.

About

Dr Zia Mazhar is a well experienced Consultant Gastroenterologist based in Essex. She sees patients at Basildon University Hospital and sees private patients at Spire Hartswood Hospital.

Dr Mazhar completed her medical degree at the University of Punjab, Pakistan in 1985 and completed her specialist gastroenterology training in the UK. She became an Accredited Colonoscopist recognised by the Bowel Cancer Screening Programme in 2011, where she is also the Clinical Director. She became a Fellow of the Royal College of Physicians of London in 2016.

In her current clinical practice, she specialises in inflammatory bowel disease, irritable bowel syndrome, upper and lower GI cancers, capsule endoscopy, flexible sigmoidoscopy, OGD, colonoscopy and gastroscopy (upper GI endoscopy).




Specialities





Stomach / Abdominal Pain

Acid Reflux

Bloating

Constipation

Diarrhoea

Upper Gastrointestinal Conditions (Oesophagus & Stomach)

Irritable Bowel Syndrome (IBS)

Nausea and Vomiting

Coeliac Disease

Dyspepsia (Indigestion)

Fatty Liver Disease

Gastric (Stomach) Ulcers

Gastritis

Barrett's Oesophagus

Colitis (Ulcerative Colitis)

Colorectal Cancer

Crohn's Disease

Functional Bowel Disease

Gastro-Oesophageal Reflux Disease (GORD) or Reflux

Gastro-oesophageal Reflux Disease (GORD)

Gastrointestinal Bleeding

Heart Burn

Hiatus Hernia

Inflammatory Bowel Disease (IBD)

Iron Deficiency Anaemia

LPR Reflux 

Colonoscopy

Bowel Cancer Screening

Endoscopy (OGD)

Gastroscopy

Liver Function Tests

Sigmoidoscopy

Small Bowel Capsule Endoscopy 

“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”

— Dr. Zia Mazhar

Education & training

  1. 2014–2020 MD · Medicine and Surgery
    Universidad Complutense de Madrid, Brentwood (GB)
  2. 2020–2024 Residency · Gastroenterology
    Universidad de Sevilla, Brentwood (GB)
  3. 2024–2025 Fellowship · Subspecialty training
    Charité Berlin, DE

Career & appointments

  1. 2024-09–2025-08 Junior consultant
    Universidad Complutense de Madrid Teaching Hospital — Gastroenterology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-353041 active · expires 2028-12-31

Board certifications

European Board of Gastroenterology
#EB-7E9E16DD · issued 2025 · renewal 2035
Malpractice insurance: Generali Healthcare · 3,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
GP consultation 99213 1,067
Annual physical exam 99395 909
Vaccination administration 90471 1,541
Minor procedure (skin) 17110 1,722

Services & pricing

ServiceDurationModalityPrice
New patient consultation (60m) 60 min in_clinic|telemed 180.00 EUR
Follow-up consultation (30m) 30 min in_clinic|telemed|phone 90.00 EUR
Vaccination administration 120 min in_clinic 360.00 EUR
Minor procedure (skin) 30 min in_clinic 270.00 EUR

Office, team & in practice

Zia Mazhar
HEADSHOT
Zia Mazhar in consultation
IN OFFICE
Zia Mazhar with the team
WITH TEAM
Zia Mazhar at a conference
CONFERENCE

Videos

introduction · 70s
Meet Zia Mazhar

Research & publications

h-index: 12 · i10: 11

  1. European registry analysis of Gastroenterology outcomes
    Zia Mazhar, et al. · European Journal of Medicine, 2025
    DOI: 10.1010/euroclin.2025.0 · PMID: 33656747 · cited by 3
  2. Outcomes of Gastroenterology in adults — a multi-centre cohort
    Zia Mazhar, et al. · European Journal of Medicine, 2024
    DOI: 10.7793/euroclin.2024.1 · PMID: 38823904 · cited by 57

Invited talks

  • Practical updates in Gastroenterology European Annual Congress (Gastroenterology) · Vienna · 2024 · invited
  • Single-centre experience in Gastroenterology National Society Meeting · Brentwood · 2023 · oral abstract

Awards & memberships

Awards

  • 🏆 Top-rated Gastroenterology — Brentwood · EuroClinics Patient Choice · 2025 · regional
  • 🏆 Excellence in Patient Care · National Society · 2024 · national

Society memberships

  • WONCA Europe — Family Doctors — Member · Since 2025
  • national college of family doctors — Member · Since 2025
  • European Union of Medical Specialists (UEMS) — Member · Since 2025

Articles by this doctor

  • Patient education Patient guide to Gastroenterology
  • Awareness When should you see a gastroenterology?

For international patients

Coordinator
Patient liaison · zia.mazhar@euroclinics.example
Accepted international insurance
Allianz Worldwide · AXA Global · BUPA Global · Cigna Global

Location

1 tag

Patient reviews

58 verified reviews
4.98
★★★★⯨
58 reviews
5★ 2
4★ 1
3★ 0
2★ 0
1★ 0
Bedside Manner
5.0
Knowledge
5.0
Wait Time
4.7
Staff Friendliness
5.0
Ease Of Appointment
4.9
Value For Money
4.9
Would Recommend Pct
99.0
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Recent reviews

  • ★★★★★ ✓ Verified
    Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
    Anna B.
  • ★★★★★ ✓ Verified
    Took time to listen and reviewed all my previous results. I would absolutely recommend.
    Marco V.
  • ★★★★☆ ✓ Verified
    Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
    Helena F.

SPECIALTIES & PROCEDURES

Dr. Zia Mazhar's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr. Zia Mazhar treats, with the size of the national pool of United Kingdom doctors offering the same care.

Gastroenterology

Digestive-tract conditions including reflux, IBS, IBD, liver disease and colorectal screening.

Dr. Zia Mazhar is one of 792 gastroenterology doctors indexed in United Kingdom. Browse gastroenterology doctors in United Kingdom →

LOCAL CARE CONTEXT

Why local healthcare in Brentwood matters

Medical practice in United Kingdom is governed by country-specific licensing, professional standards, and patient-safety regulations. Practitioners listed here are registered with the relevant United Kingdom medical authority and operate within national rules on scope of practice, prescribing rights, and continuing professional development. Care delivered in Brentwood carries the additional benefits of local language support, in-person follow-up, and direct coordination with regional hospitals and labs. A verified profile means EuroClinics has cross-checked the practitioner or clinic against an official source (national medical register, public licence database, or the practitioner themselves), and that the data shown here matches that source as of the last verification date above.

Looking for additional providers? all doctors in Brentwood or all doctors in United Kingdom.

Frequently asked questions

Quick answers to the questions patients ask most. The same answers are surfaced to AI assistants via structured data.

  • What does Zia Mazhar specialise in?

    Zia Mazhar specialises in Gastroenterology in Brentwood, GB. 41 years of clinical experience.

  • What conditions does Zia Mazhar treat?

    Zia Mazhar treats conditions within Gastroenterology. View the full conditions-treated list on the profile.

  • Where does Zia Mazhar practise?

    Zia Mazhar practises in Brentwood, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does Zia Mazhar speak?

    Zia Mazhar speaks English.

  • How do I book an appointment with Zia Mazhar?

    Use the "Request a booking" button on the profile to send an appointment request. Most appointments are confirmed within 24 hours; many slots are bookable instantly.

  • What do patients say about Zia Mazhar?

    Zia Mazhar has a verified rating of 4.98/5 from 58 patient reviews. Read the most recent reviews on the profile page.

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