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Mr N Selva Theivacumar

MBBS, MD, FRCS

Vascular Surgeon

Live bookings available

26 years of experience

Harrow, HA1 3RX

(+6 more)

31 connections in healthcare

Skill endorsed

by Mr David Greenstein, Mr Simon Harris and 3 other professionals

4.98

/5

(44 reviews)

Live bookings available

26 years of experience

Harrow, HA1 3RX

(+6 more)

31 connections in healthcare

Skill endorsed

by Mr David Greenstein, Mr Simon Harris and 3 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Varicose Veins
20
1
Varicose Veins Surgery
14
1
Angioplasty
6

Contact

Book online


Expert in:

About Mr N Selva Theivacumar

Mr. Selva Theivacumar is a highly experienced Consultant Vascular Surgeon renowned for his expertise in minimally invasive vascular procedures. He qualified in 1999 from the University of Colombo in Sri Lanka and went on to complete a research degree focusing on the minimally invasive treatment of varicose veins, earning his MD from the University of Leeds.

Mr. Theivacumar received extensive vascular training across renowned institutions in Yorkshire and London, including King’s College Hospital and St Thomas’ Hospital. He is proficient in both open surgical and endovascular techniques, offering a comprehensive skill set for the management of complex vascular conditions.

His specialist interests include the treatment of varicose veins, aortic aneurysms, peripheral arterial disease (claudication), and stroke prevention through surgical management of TIAs. A recognised leader in the field, Mr. Theivacumar has published multiple peer-reviewed scientific papers and has contributed significantly to the development of modern varicose vein treatments.

He provides a full range of minimally invasive vein procedures, such as Endovenous Thermal Ablation (laser or radiofrequency), and Ultrasound-Guided Foam Sclerotherapy. In arterial disease, he specialises in advanced interventions like angioplasty and stenting, endovascular aneurysm repair, femoral endarterectomy, and lower limb bypass surgery.

With a strong focus on patient-centred care, Mr. Theivacumar tailors his treatment plans to each individual’s condition and lifestyle. His goal is to reduce recovery times and improve outcomes through the use of modern, evidence-based techniques.


Areas of expertise

All
Reviews
(78)
Skill Endorsements
(11)

Click the bar to read reviews or skill endorsements

Varicose Veins
20
1
Varicose Veins Surgery
14
1
Angioplasty
6
Peripheral Arterial Disease
6
Endovenous Laser Ablation (EVLA)
5
2
Endovascular Stent Graft
4
Claudication
4
Leg Ulcers
4
Peripheral Arterial Disease (Angioplasty and Stenting)
3
1
Endoscopic Vein Surgery
1
Carotid Endarterectomy
1
Mesenteric Ischemia
1
Carotid Artery Disease
1
Diabetic Foot Care
1
Endovenous Radiofrequency Ablation
1
Carotid Surgery for Stroke Prevention
1
Swollen Feet & Ankles
1
Diabetic Foot
1
Venous Ulcers
1
Superficial Thrombophlebitis
1
Vascular Imaging
1
Varicose Vein Treatment
1
Peripheral Aneurysm
1
Knee Ligament Repair
1
Knee Replacement
1
Phlebitis
Ischaemia
Critical Leg Ischaemia / Chronic Limb-Threatening Ischaemia (CLTI)
Arterial Ulcers
Gangrene
Foam Sclerotherapy
Aortic Aneurysms
Chronic Venous Insufficiency
Abdominal Aortic Aneurysm
Aorto-iliac Disease
Reno-Vascular Conditions

Registered with

General Medical Council

No. 6031258

Royal College of Surgeons

No. 1010304

The College of Phlebology Venous Registry

No. 13246


Education

University of Colombo

Medicine

Graduated 2000


Qualifications

MBBS University of Colombo, Sri Lanka 1999

MD University of Leeds

Memberships:

  • Vascular Society of Great Britain & Ireland
  • British Society of Endovascular Therapy
  • European Society for Vascular Surgery
  • Association of Surgeons of Great Britain & Ireland
  • British Medical Association, UK
  • Jaffna Medical Association, Jaffna, Sri Lanka

Publications

+7

Read publications and papers written by this specialist.

10 / 07 / 2025

Northwick Park doctors save woman who couldn’t eat for over a year - Harrow Online

Published in Harrow Online

25 / 10 / 2017

Man saved after he stopped breathing and collapsed on plane

Published in Surrey News

10 / 05 / 2011

Endovenous Laser Ablation (EVLA) to Treat Recurrent Varicose Veins

Published in European Journal of vascular and endovascular surgery

28 / 04 / 2008

Endovenous laser ablation: Does standard above-knee great saphenous vein ablation provide optimum results in patients with both above- and below-knee reflux? A randomized controlled trial

Published in Journal of Vascular Surgery


Languages spoken

  • English
  • Sinhala
  • Tamil

Insurers

  • Vitality
  • Cigna
  • WPA
  • Bupa
  • AXA Health
  • Aviva Health
  • Bupa Fee Assured
  • Self-pay only

Fees

  • New appointment

    £150
  • Follow-up appointment

    £100
*May vary on location

Locations

The Clementine Churchill Hospital (part of Circle Health Group)

The Clementine Churchill Hospital, Sudbury Hill, Harrow, United Kingdom, HA1 3RX

4.81(2,468 reviews)

Opening hours

Monday
Tuesday
Wednesday
Thursday
17:30 - 19:30
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Opening hours

Monday
Tuesday
Wednesday
Thursday
17:30 - 19:30
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

The Kings Oak Hospital (part of Circle Health Group)

Chase Farm, Enfield, United Kingdom, EN28SD

4.81(821 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Bishops Wood Hospital (part of Circle Health Group)

Rickmansworth Road, Northwood, London, United Kingdom, HA6 2JW

4.85(781 reviews)

Opening hours

Monday
Tuesday
Wednesday
17:30 - 19:30
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

The Cavell Hospital (part of Circle Health Group)

Cavell Drive, Uplands Park Rd, Enfield, London, United Kingdom, EN2 7PR

4.80(499 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Hendon Hospital (part of Circle Health Group)

46/50 Sunny Gardens Road, Hendon, London, United Kingdom, NW4 1RP

4.86(261 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

London North West University Healthcare NHS Trust

Watford Rd, London, United Kingdom, HA1 3UJ

0.00(0 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Trustplus Northwick Park Hospital

Watford Road, London, United Kingdom, HA1 3UJ

0.00(0 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Varicose Veins
20
1
Varicose Veins Surgery
14
1
Angioplasty
6

Contact

Book online

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Mr N Selva Theivacumar offers professional and excellent patient interactions, providing clear explanations of medical information. He is praised for his skill as a surgeon, delivering dedicated care and ensuring the best advice throughout procedures. Patients report successful outcomes from various complex interventions, including angioplasty, carotid artery operations, and varicose veins surgery. Many seek Mr Theivacumar for conditions like varicose veins and peripheral arterial disease, experiencing successful results and an improved quality of life.

5
verified patient
24 Sep 2026

Excellent, one of the very best surgeons in his field, Kind and approachable . Very pleased I met him

5
verified patient
10 Sep 2026

Doctor was very clear and helpful and was able to successfully complete my procedure without any complications.

5
verified patient
04 Sep 2026

Very efficient doctor,my wife under gone varicose vain surgery, very happy along the procedure,well explained, Dr is a asset to the hospital and society, All best wishes in his career

Patient seen for:
Reply from N Selva Theivacumar
07 Sep 2026
avatar-image

Thank you for your kind words

5
verified patient
27 Aug 2026

Fantastic doctor! So helpful and informative

Patient seen for:
Reply from N Selva Theivacumar
28 Aug 2026
avatar-image

Thank you for your kind review

5
verified patient
31 Jul 2026

Excellent care all the way during the procedure. Thank you doctor and the team for the care. Hope my recovery to go smoothly.

Reply from N Selva Theivacumar
01 Aug 2026
avatar-image

Thank you for your kind words.

5
verified patient
31 Jul 2026

Very calm and professional and reassuring. I can't fault him at all.

Reply from N Selva Theivacumar
01 Aug 2026
avatar-image

It was a pleasure to treat your veins. Thank you for your kind words

5
verified patient
23 Jul 2026

From the very first appointment Dr Theivacumar listened and explained everything clearly and made me feel cared for during this difficult journey. His knowledge, experience and professionalism towards me provided confidence every step of the way.

Reply from N Selva Theivacumar
25 Jul 2026
avatar-image

Thank you for your kind words.

5
verified patient
17 Jul 2026

Mr Theivacumar was easy going, and answered my questions, I was in on time and out quickly.

Reply from N Selva Theivacumar
20 Jul 2026
avatar-image

Thank you for your kind words.

5
verified patient
02 Jul 2026

I saw Mr Theivacumar for a follow up. He answered all my questions and took into account my personal situation when considering the best treatment. He is an amazing surgeon and I am so grateful to him as his quick action saved my leg.

Patient seen for:
Reply from N Selva Theivacumar
14 Jul 2026
avatar-image

Thank you for your kind words. You did very well.

5
verified patient
26 Jun 2026

Underwent surgery with pre and post operation appointments. Very positive experience.

Reply from N Selva Theivacumar
14 Jul 2026
avatar-image

Thank you for your kind words. You did very well.

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Skill Endorsements

An excellent technician in endovascular surgery

18 Jul 2026
Endorsed for
Peripheral Arterial Disease (Angioplasty and Stenting)
Varicose Vein Treatment
Varicose Veins Surgery

Mr David Greenstein

Mr David Greenstein

Vascular Surgeon
Is a colleague

Very experienced and respected colleague with who I work closely

06 Feb 2026
Endorsed for
Endovenous Laser Ablation (EVLA)
Varicose Veins

Mr Simon Harris

Mr Simon Harris

General Surgeon
Is a colleague

Mr Theivacumar is my valuable colleague helping me with treating my patients with varicose eczema and lipodermatosclerosis.

12 Oct 2025
Endorsed for
Endovenous Laser Ablation (EVLA)
Peripheral Aneurysm

Dr Mohammad Ghazavi

Dr Mohammad Ghazavi

Dermatologist
Is a colleague

Excellent doctor

04 Sep 2025
Endorsed for
Advanced Anti-Wrinkle Injections
Visual Stress Assessment

Mr Said Abisi

Mr Said Abisi

General Surgeon
We trained together
Mr N Selva Theivacumar logo

Get to know Mr N Selva Theivacumar

Articles

Most recent articles

Read articles from Mr N Selva Theivacumar explaining process of procedures and other important things you should know before choosing your provider.

Superficial venous reflux: Assessment and treatment by endovenous laser ablation (EVLA)

Superficial venous reflux: Assessment and treatment by endovenous laser ablation (EVLA)

This is my research thesis on minimally invasive laser treatment for varicose veins. I pioneered in varicose vein treatment since 2005

10 April 2011

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Northolt woman, 80, saved by surgery after year unable to eat - EALING.NEWS - The Voice of Ealing's 7 towns - Acton, Ealing, Greenford, Hanwell, Northolt, Perivale, Southall.

Northolt woman, 80, saved by surgery after year unable to eat - EALING.NEWS - The Voice of Ealing's 7 towns - Acton, Ealing, Greenford, Hanwell, Northolt, Perivale, Southall.

An 80-year-old woman from Northolt has undergone life-saving surgery after spending more than a year unable to eat without excruciating pain.

10 July 2025

ealing.news

Man saved after he stopped breathing and collapsed on plane

Man saved after he stopped breathing and collapsed on plane

The Australian suffered a ruptured aneurysm at Heathrow, which would have been fatal if not treated immediately

10 May 2017

getsurrey.co.uk

Motorcyclist aims for fast lane after life-saving op | Latest news

Motorcyclist aims for fast lane after life-saving op | Latest news

Vascular surgeon saves cyclist's life

19 June 2023

lnwh.nhs.uk

FAQ

What are Mr N Selva Theivacumar's reviews like?

Mr N Selva Theivacumar's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 44 reviews.

What languages does Mr N Selva Theivacumar speak?

Mr N Selva Theivacumar speaks English, Sinhala and Tamil

Where is Mr N Selva Theivacumar located?

Mr N Selva Theivacumar primarily practices at The Clementine Churchill Hospital (part of Circle Health Group), located at The Clementine Churchill Hospital, Sudbury Hill, Harrow, United Kingdom, HA1 3RX
See more locations

What are Mr N Selva Theivacumar working hours?

Mr N Selva Theivacumar is working Wednesday (17:30 - 19:30), Thursday (17:30 - 19:30)

Find where Mr N Selva Theivacumar operates today

Does Mr N Selva Theivacumar accept new patients?

Mr N Selva Theivacumar generally accepts new patients.

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