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Professor Mark O'Donnell

DipSEM(GB&I) MB BCH BAO(Dist) MFSEM(UK) MFSEM(RCSI&RCPI) MFSTEd MMedSc(Dist) MD ECFMG RPVI(ARDMS) MCPhleb FRCSEd(Gen&VascSurg) FEBVS(Hon)

Vascular Surgeon

27 years of experience

Belfast, BT9 7GX

(+4 more)

81 connections in healthcare

Skill endorsed

by Dr Jack Andrews, Dr Divyesh Sharma and 19 other professionals

4.98

/5

(1,424 reviews)

27 years of experience

Belfast, BT9 7GX

(+4 more)

81 connections in healthcare

Skill endorsed

by Dr Jack Andrews, Dr Divyesh Sharma and 19 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Varicose Veins
974
8
Foam Sclerotherapy
533
3
Leg Pain
236

Contact

Book


Expert in:

About Professor Mark O'Donnell

Professor Mark O’Donnell is a highly accomplished Consultant Vascular and Endovascular Surgeon with extensive experience across both NHS and private healthcare sectors. His practice encompasses the full spectrum of arterial, venous, and lymphatic disease, including minimally invasive endovenous treatments such as radiofrequency ablation, ultrasound guided foam sclerotherapy, and microsclerotherapy, as well as complex and recurrent varicose vein surgery including phlebectomy / avulsions, ligation and stripping. He provides consultations and treatment across multiple private hospitals in Northern Ireland, including Kingsbridge Private Hospital Belfast, Kingsbridge North West and the Ulster Independent Clinic.

A graduate of Queen’s University Belfast with distinction, Professor O’Donnell completed his surgical training through the Northern Ireland Surgical Training Rotation, followed by a Vascular Surgery Fellowship at the Mayo Clinic, USA, where he was appointed Assistant Professor of Surgery. He achieved the UEMS Vascular Gold Medal for first place in the European Board of Vascular Surgery Examination and holds a Medical Doctorate and Master of Medical Science in Education.

Professor O’Donnell has published over 100 peer-reviewed papers, presented internationally, and remains actively involved in academic research, simulation training, and education. A Visiting Professor at Ulster University, he lectures widely and contributes to healthcare quality improvement and patient safety initiatives, including the Getting It Right First Time (GIRFT) programme.

His private practice reflects his enduring commitment to high-quality,
patient-focused care, recognised by awards including Doctify’s 2023 Healthcare
Professional of the Year (Patient Voice Award); 2024 Endovascular Surgeon of
the Year (Belfast); 2025 Winner of Best Consultant Vascular and Endovascular
Surgeon as well as Highly Commended for Cross-Border Collaboration at the 2026
All Island Private Healthcare Awards.    

With over 20 years clinical experience, Professor Mark O'Donnell leads an
established vascular surgery practice performing over 850 minimally invasive
procedures for varicose veins each year with a high level of patient
satisfaction (Doctify; TrustPilot; and Google). Professor O'Donnell's precision-led minimally invasive varicose vein procedures are provided to all patients in Belfast and throughout Northern Ireland ensuring fast recovery permitting patients to feel confident in their legs and walk pain-free again.  




Areas of expertise

All
Reviews
(2274)
Skill Endorsements
(52)

Click the bar to read reviews or skill endorsements

Varicose Veins
974
8
Foam Sclerotherapy
533
3
Leg Pain
236
Varicose Veins Surgery
179
5
Endovenous Radiofrequency Ablation
104
4
Swollen Legs
61
Thread (Spider) Veins
27
1
Peripheral Arterial Disease
20
12
Deep Vein Thrombosis (Blood Clot)
20
Swollen Feet & Ankles
10
Phlebitis
10
Varicose Vein Treatment
9
2
Aortic Aneurysms
9
Diabetic Foot Care
9
Leg Ulcers
8
1
Reno-Vascular Conditions
6
Endovenous Laser Ablation (EVLA)
5
1
Thoracic Outlet Syndrome
4
Claudication
4
Imaging for Varicose Veins
3
Vascular Anomalies
3
Lymphoedema
2
1
Health Assessments
2
Carotid Artery Disease
2
Arteriovenous Malformation (AVM)
2
Carotid Surgery for Stroke Prevention
2
Pelvic Congestion Syndrome
2
Vascular Disease
2
Abdominal Aortic Aneurysm
1
2
Venous Ulcers
1
2
Superficial Thrombophlebitis
1
1
Ehlers-Danlos Syndrome (EDS)
1
Tinnitus Assessment and Management
1
ERCP Procedure
1
Vasectomy (Male Sterilization)
1
Peripheral Aneurysm
1
Tinnitus
1
Systemic Vasculitis
1
Peripheral Neuropathy
1
Mesenteric Ischemia
1
Foot Pain
1
Nerve Pain
1
Arthritis
1
Vaser Liposuction
1
Vascular Lesions
1
Microsclerotherapy for Thread Veins
1
Endovascular Aneurysm Repair
1
Raynaud's Disease
1
Neurocardiogenic Syncope (Vasovagal)
1
Ischaemia
1
Diabetic Foot
1
Radiofrequency Treatments
1
Pulsatile Tinnitus
1
PET/CT in Cardiology
1
Chronic Venous Insufficiency
3
Cardiovascular Disease
1
Colitis (Ulcerative Colitis)
1
Endoscopy (OGD)
1
Sclerotherapy
1
Peripheral Arterial Disease (Angioplasty and Stenting)
1
VenaSeal for Varicose Veins
1
Aorto-iliac Disease
Critical Leg Ischaemia / Chronic Limb-Threatening Ischaemia (CLTI)
Thoracic Aortic Aneurysm
Lipodermatosclerosis
Gangrene
Dermatitis
Arterial Ulcers
Aortic Tumours
Diabetic Ulcers
Arm Artery Disease
Aortic Dissection

Registered with

  • General Medical Council

    No. 4624141


Education

Queens University

Medicine

Graduated 1999


Qualifications

Bachelor of Medicine, Surgery and Obstetrics (MB BCh BAO) with distinction in Microbiology and Pharmacology The Queen's University of Belfast, Northern Ireland 1999.

Member of the Royal College of Surgeons (MRCSEd) Royal College of Surgeons, Edinburgh 2002.

Diploma in Sports and Exercise Medicine of Great Britain and Ireland (DipSEM) Intercollegiate College of Sports and Exercise Medicine of Great Britain and Ireland 2004.

Doctorate of Medicine (MD) The Queen's University of Belfast, Northern Ireland 2008.

Master of Medical Science in Education for the Health Care Professions with Distinction (MMedSc) The Queen's University of Belfast, Northern Ireland 2009.

Education Commission for Foreign Medical Graduates (ECFMG) Certification United States Medical Licensing Board Examinations (USMLE) - Step 1 August 2010, Step 2 CK July 2010, Step 2 CS January 2011 and Step 3 February 2015.

General and Vascular Surgery Exit Examination (FRCS) Intercollegiate Specialty Board of Surgery, United Kingdom 2012.

Fellow of the Royal College of Surgeons Edinburgh (FRCSEd Gen&VascSurg) 2012.

Physicians Vascular Interpretation Examination (RVPI) The American Registry for Diagnostic Medical Sonography (ARDMS) 2013.

Member of the Faculty of Surgical Trainers (MFSTEd), The Royal College of Surgeons Edinburgh (RCSEd) 2015.

Fellow of the European Board of Vascular Surgery (FEBVS Honours) European Board of Vascular Surgery 2015.

Member of the College of Phlebology (MCPhleb) 2024.


Publications

+13

Read publications and papers written by this specialist.

20 / 02 / 2023

A scoping review of assessment methods of competence of general surgical trainees - PubMed

Published in Surgeon. 2023 Feb; 21(1): 60-69.

20 / 10 / 2019

Thromboprophylaxis for varicose vein procedures - A national survey - PubMed

Published in Phlebology. 2019 Oct; 34(9): 598-603.

20 / 05 / 2015

Portomesenteric venous thrombosis following major colon and rectal surgery: incidence and risk factors - PubMed

Published in Surg Endosc. 2015 May; 29(5):1071-9.

01 / 02 / 2015

Surgical and medical management of extracranial carotid artery aneurysms - PubMed

Published in J Vasc Surg 2015 Feb; 61(2): 389-93.


Languages spoken

  • English

Insurers

  • Benenden Health
  • Bupa Fee Assured
  • The Exeter
  • Simply Health (Dental)
  • Healix Health Services
  • Cigna
  • Bupa
  • WPA
  • AXA Health
  • Aviva Health
  • Vitality

Fees

  • New appointment

    £200
  • Follow-up appointment

    £120
*May vary on location

Locations

Kingsbridge Private Hospital Belfast

801-815 Lisburn Road, Belfast, United Kingdom, BT9 7GX

4.80(13,688 reviews)

Opening hours

Monday
Tuesday
13:30 - 16:30
Wednesday
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Opening hours

Monday
Tuesday
13:30 - 16:30
Wednesday
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Kingsbridge North West Hospital

Church Hill house, Main Street, Ballykelly, United Kingdom, BT49 9HS

4.87(8,325 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Free Parking
View practice profile

Kingsbridge Diagnostic and Treatment Centre

Building One Dataworks King's Hall Life Sciences Park, Belfast, United Kingdom, BT9 6GW

4.85(4,343 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Kingsbridge Newry

Windsor Avenue, Newry, United Kingdom, BT34 1EG

4.89(553 reviews)

Opening hours

Monday
Tuesday
Wednesday
Thursday
08:30 - 12:30
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Ulster Independent Clinic

245 Stranmillis Rd, Belfast, United Kingdom, BT9 5JH

0.00(0 reviews)

Opening hours

Monday
Tuesday
Wednesday
14:00 - 17:00
Thursday
Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Varicose Veins
974
8
Foam Sclerotherapy
533
3
Leg Pain
236

Contact

Book

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Patients see Professor Mark O'Donnell as professional. He talks to them and sets them at ease. They leave the care unit with full faith in him and his plan. Main themes cover varicose veins, foam sclerotherapy, and leg pain.

5
verified patient
08 Nov 2026

Very helpful and reassuring.

Patient seen for:
5
verified patient
03 Nov 2026

I was not sure what options were available for my vein treatment and Professor O Donnell explained what was most suitable for myself going forward

Reply from Mark O'Donnell
05 Nov 2026
avatar-image

Thank you for your kind feedback. I’m delighted that I was able to explain the treatment options available and help you understand which approach would be most suitable for you moving forward. It is important to me that every patient feels informed, comfortable and confident in the decisions made about their care. Thank you for placing your trust in my vascular clinic - kind regards Mark

5
verified patient
02 Nov 2026

Had another great experience with Professor O'Donnell. He is very friendly and professional.

Patient seen for:
Reply from Mark O'Donnell
05 Nov 2026
avatar-image

Thank you for your continued trust and kind feedback. I’m delighted to hear that you have had another positive experience. I always aim to make my patients feel welcome, comfortable and well cared for and it is lovely to know this has been your experience. Thank you for your recommendation! Best wishes Mark

5
verified patient
02 Nov 2026

Looked after very well

Reply from Mark O'Donnell
05 Nov 2026
avatar-image

I am so pleased you felt well looked after - please let me know anytime if I can assist further - regards Mark

5
verified patient
01 Nov 2026

After a worrying weekend with a sore and inflamed leg, I was relieved to be able to get an expert opinion from Professor O’Donnell. He immediately diagnosed thrombophlebitis, confirmed by a scan, and prescribed the appropriate treatment. Both then and at my 3-monthly review, Professor O’Donnell explained things very clearly and he followed up with the information in writing to my GP. Professor O’Donnell took time to answer all my questions fully and I very much welcome the option to contact him again if I need to. An excellent service!

Reply from Mark O'Donnell
05 Nov 2026
avatar-image

Thank you very much for your thoughtful feedback. I’m pleased that I was able to provide reassurance and support during what must have been a worrying time for you. Clear communication and ensuring patients feel informed and supported throughout their treatment and follow-up are very important to me. I’m glad you found the written follow-up helpful and please do not hesitate to get in touch if you have any further concerns. Thank you again for your kind words. Best wishes and let me know anytime if I can assist further - Mark

5
verified patient
30 Oct 2026

Excellent service.Professor O'Donnell has a great bedside manner and put me at ease.Procedure went well.

Reply from Mark O'Donnell
05 Nov 2026
avatar-image

I’m delighted to hear that you felt at ease and that your procedure went well. Making sure my patients feel comfortable, reassured and well cared for throughout their treatment is very important to me. Thank you for taking the time to share your experience and for taking time to review your experience - Mark.

5
verified patient
29 Oct 2026

I recently had varicose vein treatment by Professor O’Donnell and his team. The process from initial consultation through to treatment was excellent. I wouldn’t hesitate to highly recommend Professor O’Donnell and his nursing team. Results this far are great and I can’t thank them enough

Reply from Mark O'Donnell
29 Oct 2026
avatar-image

Thank you so much for your kind words and recommendation. I’m delighted to hear that your experience from the initial consultation through to treatment was so positive and that you are already seeing great results. I will be sure to share your lovely feedback with the nursing team, who will really appreciate it. Providing excellent care and ensuring our patients feel supported throughout their treatment journey is very important to us. Thank you again for taking the time to share your experience. I wish you continued progress and all the very best. Best wishes Mark

5
verified patient
28 Oct 2026

I contacted Kingsbridge for a follow up review with Mark, I was seen 4 days later, where upon I had some additional injections into my calf area. Mark gave me a very clear description of what was needed and what was done. I can’t speak highly enough about the friendly professional experience.

Reply from Mark O'Donnell
29 Oct 2026
avatar-image

Thank you very much for your lovely feedback. I’m delighted we were able to arrange your follow-up review promptly and that you were happy with the treatment provided. It’s important to me that every patient understands their treatment and feels comfortable and reassured throughout their care. I really appreciate you taking the time to share your experience and your kind words about the team at Kingsbridge. Thank you for your recommendation, and I wish you all the very best. Regards Mark

5
verified patient
28 Oct 2026

Excellent follow up appointment following RFA treatment for varicose veins Ultrasound showing great improvement; painless foam injection to close off last remaining patent tributary

Reply from Mark O'Donnell
29 Oct 2026
avatar-image

Thank you for your kind feedback. I’m delighted that your follow-up ultrasound showed such a good improvement following your RFA treatment. It’s great to hear that the foam sclerotherapy was also comfortable. We aim to achieve the best possible outcome for every patient, and I wish you continued progress and good health. Please let me know anytime if I can assist further - best wishes Mark

5
verified patient
26 Oct 2026

Absolutely delighted with Professor Mark O Donnell s work and follow up appointment. Would fully recommend him to anyone that has to go threw varicose vein surgery.

Reply from Mark O'Donnell
27 Oct 2026
avatar-image

I am so pleased you had a great outcome and experience ay my vascular surgery clinic. Please let me know anytime if I can ever assist further - best wishes Mark

Your trust is our top concern, so providers can't pay to alter or remove reviews.
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Skill Endorsements

Excellent surgeon

07 Oct 2026
Endorsed for
Peripheral Arterial Disease
Abdominal Aortic Aneurysm
Cardiovascular Disease

Dr Jack Andrews

Dr Jack Andrews

Cardiologist
I have referred patients to them

Skills

22 Jul 2026
Endorsed for
Peripheral Arterial Disease
Varicose Veins Surgery

Dr Divyesh Sharma

Dr Divyesh Sharma

Cardiologist
Is a colleague

Would recommend Mr O'Donnell at Kingsbridge Belfast

22 Jul 2026
Endorsed for
Peripheral Arterial Disease
Varicose Veins Surgery

Dr Edward McKeever

Dr Edward McKeever

Diabetes & Endocrinology Specialist
Is a colleague

Mark is an excellent surgeon, easily approachable and very kind doctor.

20 Jun 2026
Endorsed for
Peripheral Arterial Disease
Varicose Veins

Mr Ramesh Kumar Gurunathan

Mr Ramesh Kumar Gurunathan

ENT Surgeon
Is a colleague
Professor Mark O'Donnell logo

Get to know Professor Mark O'Donnell

Videos

Most recent videos

Explore videos from Professor Mark O'Donnell explaining process of procedures and other important things you should know before choosing your provider.

Professor Mark O'Donnell - Introduction Video - 2025

Professor Mark O'Donnell - Introduction Video - 2025

Many thanks for watching my introduction video - I hope to convey a very informal relaxed approach to high quality vascular surgery care at all of my Northern Ireland clinics. Best wishes Mark

08 November 2025

FAQ

What are Professor Mark O'Donnell's reviews like?

Professor Mark O'Donnell's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 1,424 reviews.

What languages does Professor Mark O'Donnell speak?

Professor Mark O'Donnell speaks English

Where is Professor Mark O'Donnell located?

Professor Mark O'Donnell primarily practices at Kingsbridge Private Hospital Belfast, located at 801-815 Lisburn Road, Belfast, United Kingdom, BT9 7GX
See more locations

What are Professor Mark O'Donnell working hours?

Professor Mark O'Donnell is working Tuesday (13:30 - 16:30), Wednesday (14:00 - 17:00), Thursday (08:30 - 12:30)

Find where Professor Mark O'Donnell operates today

Does Professor Mark O'Donnell accept new patients?

Professor Mark O'Donnell generally accepts new patients.

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