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  • Mr Jas Kalsi

Mr Jas Kalsi

Urology in Windsor, Maidenhead, Central London, Slough and West London

BSc MBBS MD FRCS (Urol)
GMC: 4414289

5.0141reviewsReview

Expert in:
Male infertility
Varicocele
Erectile dysfunction
Benign prostate enlargement
Rezūm
Kidney stones
  • Information
  • CV
  • Content
  • Reviews
  • Treatments

Professional statement

Mr Jas Kalsi is a leading consultant urological surgeon and male fertility specialist in London and Berkshire, with private clinics at BUPA Cromwell Hospital, The Spire, The Lister Hospital in Chelsea, BMI The Princess Margaret Hospital and TFP Thames Valley Fertility. His areas of expertise include male fertility, varicocele, erectile dysfunction, enlarged prostate, HoLEP, Rezum and the treatment of renal stones. He consults in all aspects of urological disease such as blood in the urine (haematuria), difficulty passing urine and raised PSA levels. He also sees both national and international patients with andrological problems such as erectile dysfunction and premature ejaculation.

Mr Kalsi graduated with first-class honours in pharmacology and immunology from University College London in 1993 and got honours in his medical degree at UCL (MBBS Cons). He then went on to specialise in urology and male fertility thereafter. 

Alongside his private practice, Mr Kalsi currently works publicly at Imperial College Healthcare in London and Frimley Health NHS Foundation Trust as a consultant urological surgeon, with a sub-specialist interest in male sexual and genital conditions (andrology), microsurgery (varicocele and sperm retrieval) and laser surgery for stones and prostates (HoLEP).

Mr Kalsi is a fellow of the Royal College of Surgeons of England in Urological Surgery and a member of the British Association of Urological Surgeons (BAUS) and the European Association of Urology (EAU).

Clinics

The Princess Margaret Hospital - part of Circle Health Group
  • The Princess Margaret Hospital  - part of Circle Health Group profile image

    The Princess Margaret Hospital - part of Circle Health Group

    Windsor, Osborne Road, SL4 3SJ

    Medical insurances accepted

    I'm paying for myself
    Bupa
    AXA
    AVIVA
    Cigna
    WPA
    Vitality

Credentials

Professional experience

  • 18 years of experience
  • Consultant Urological Surgeon, BUPA Cromwell Hospital (Jun 2015-present)
  • Consultant Urologist, The Spire (present) 
  • Consultant Urological Surgeon, The Lister Hospital (present)
  • Consultant Urological Surgeon, BMI The Princess Margaret Hospital (Jun 2011-present)
  • Male Fertility Expert and Consultant Urologist, Thames Valley Fertility (Jan 2018-present) 
  • Consultant Urologist, Imperial College Healthcare (May 2014-present) 
  • Consultant Urological Surgeon and Andrologist, Frimley Health NHS Foundation Trust (Jun 2010-present) 
  • Consultant Urological Surgeon, West Middlesex University Hospital NHS Foundation Trust (Dec 2009-Jun 2010) 
View more

Subspecialties

  • Male fertility 
  • Varicocele 
  • Erectile dysfunction 
  • Enlarged prostate 
  • HoLEP 
  • Rezum 
  • Renal stones 
  • Peyronie's disease
  • Lower urinary tract symptoms
  • Vasectomy reversal
  • Urethral strictures
  • UroLift
View more

Professional memberships

  • Royal College of Surgeons of England
  • British Association of Urological Surgeons
  • European Association of Urology
View more

Education

  • FRCS (Urol)
  • MD (Hons), University of London (2003)
  • MBBS (Hons), UCL (1991-1997) 
  • First-class honours pharmacology with immunology, BSc (Hons), UCL (1991-1993) 
View more

Teaching posts

  • Foundation training programme director, Oxford Deanery/Thames Valley HEE (Feb 2012-Feb 2017)

Positions in organisations

  • Chairperson, West London Division, BMA (Apr 2012-Jul 2018) 

Publications and conferences

  • Mr Kalsi has contributed to numerous peer-reviewed publications and journals, some of which can be found via Pubmed. 
  • He has won numerous awards such as the ESSM award at the 16th Congress of the European Society for Sexual Medicine in 2009. 

Languages spoken

  • English
  • Hindi
  • Punjabi
View more
Registration number: 4414289

Content

Photos

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Health content

Low-intensity ultrasound therapy: a revolutionary approach in urology

Video

Low-intensity ultrasound therapy: a revolutionary approach in urology

In this video, leading consultant urological surgeon, Mr Jas Kalsi explains all about the ...

Laser technology for benign prostatic enlargement.

Article

After HoLEP comes ThuLEP: The latest laser technology for urinary retention and benign prostatic enlargement

Mr Jas Kalsi, a leading consultant urological surgeon and male fertility specialist, discu...

What is microsurgical varicocele ligation, and how does it treat varicoceles?

Video

What is microsurgical varicocele ligation, and how does it treat varicoceles?

Varicoceles are a kind of varicose vein found in the scrotum, which can have a negative af...

Low-intensity ultrasound

Article

What we should know about low intensity ultrasound

On hand to discuss low intensity ultrasound in expert detail is Mr Jas Kalsi, a renowned c...

Microsurgical sperm retrieval: key advancements for patients facing infertility

Video

Microsurgical sperm retrieval: key advancements for patients facing infertility

Leading London and Berkshire-based consultant urological surgeon, Mr Jas Kalsi explains al...

What is testosterone deficiency?

Article

What is testosterone deficiency?

Testosterone deficiency, often referred to as hypogonadism, occurs when the body produces ...

What are the benefits of using Thulium laser technology for prostate surgery?

Video

What are the benefits of using Thulium laser technology for prostate surgery?

Mr Jas Kalsi, an esteemed consultant urological surgeon explains how Thulium laser surgery...

11 ways to boost male fertility

Article

11 ways to boost male fertility

In the UK, roughly one in ten men suffer from infertility and according to certain studies...

Other information

http://Www.urologynow.co.uk
https://www.ncbi.nlm.nih.gov/pubmed/?term=Kalsi+JS
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Reviews

All reviews are from real patients and have been verified by our Customer Service department to ensure they meet our guidelines. Rules of the service

141 reviews

5.0

Review this doctor
  • Would you recommend this doctor?
  • Treatment of the doctor
  • Treatment of the staff
  • Waiting time
  • Condition of facilities
  • Mr Kalsi saw me after a year of trying and quickly identified that I was a cystic fibrosis carrier who had Bilateral Absence of the Vas Deferens. He took me through treatment options and I had m-tese surgery soon after - we are now pregnant through IVF thanks largely to Mr Kalsi. He is incredibly knowledgeable and also takes time to connect with his patients.
    15 May 2026

    M.B.

    Verified patient
  • very reassuring
    14 May 2026

    S.P.

    Verified patient
  • I have been treated by Mr Kalsi for over 10 years, and he has always carried out the work to perfection.
    10 May 2026

    J.R.

    Verified patient
  • 23 April 2026

    D.R.

    Verified patient
  • 12 April 2026

    R.G.

    Verified patient
  • 6 February 2026

    P.W.

    Verified patient
  • Mr. Jas Kalsi was incredibly professional and friendly, taking the time to be truly understanding of my concerns. His services were high quality and the appointment was quick and efficient, yet I felt thoroughly helped. I highly recommend!
    29 January 2026

    D.P.

    Verified patient
    Doctor's response -
    Thank you for your kind words
  • I had a very positive experience with Mr Kalsi at Lister Hospital following my M-TESE procedure. He explained the process clearly and calmly, which put both my wife and me at ease. Communication was excellent throughout, with quick responses and clear guidance at every stage. I felt well informed, reassured, and confident in the care I received, and would highly recommend him.
    22 December 2025

    S.H.

    Verified patient
    Doctor's response -
    Thank you for your positive comments. I wish you both the best on your fertility journey. Please keep us updated.
  • Very happy with my appointment, doing thorough tests for a diagnosis
    4 December 2025

    L.T.

    Verified patient
  • 4 December 2025

    B.G.

    Verified patient

Treatments

The doctor is expert in

Benign prostate enlargement

Erectile dysfunction

Kidney stones

Male infertility

Rezūm

Varicocele

The doctor also specialises in:

Adult circumcision

Andrology

Balanitis

Bladder problems

Circumcision

Cryotherapy for prostate and kidney cancer

Cystitis

Cystocele

Foreskin problems

Haematuria (blood in the urine)

Frequently Asked Questions

What is Mr Jas Kalsi's specialty?

Mr Jas Kalsi is a consultant specialising in Urology, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Mr Jas Kalsi specialise in?

Mr Jas Kalsi is a urologist who provides assessment and treatment for Benign prostate enlargement, Erectile dysfunction, Varicocele, Kidney stones, Male infertility and Rezūm. During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Mr Jas Kalsi have?

Mr Jas Kalsi has 18 years of professional experience as a consultant urologist, providing specialist assessment and treatment in this medical field.

What do patients say about Mr Jas Kalsi?

Patients give a rating of 5.0 out of 5 to Mr Jas Kalsi, a score considered excellent. This average is based on 141 verified patient reviews, reflecting the experience of those who have attended an appointment.

Are Mr Jas Kalsi's reviews verified?

Yes. All Mr Jas Kalsi's reviews come from verified patients who have attended either an in-person or an e-Consultation appointment. We use a system that ensures authenticity and prevents fake reviews. Some profiles may also display reviews from other platforms, which follow their own verification policies, with the source always clearly indicated.

Where does Mr Jas Kalsi practise?

Mr Jas Kalsi practices in the following locations:

  • Windsor at Osborne Road
  • Maidenhead at Ground Floor, Clarion House, Norreys Drive
  • Central London at 164-178 Cromwell Rd
  • Slough at Wexham St
  • West London at 347 - 353 Chiswick High Road
  • Beaconsfield at Hall Barn House, Little, Windsor End, Beaconsfield HP9 2JW, UK
  • Central London at Chelsea Bridge Road, London

In-person consultations are available at these locations as a Urology.

How can I book an appointment with Mr Jas Kalsi?

You can book an appointment with Mr Jas Kalsi directly from this page by selecting the time that suits you best. Alternatively, you can call the phone number shown if you prefer personalised assistance.

Does Mr Jas Kalsi see NHS patients?

Many specialists featured on Top Doctors also hold NHS positions. However, appointments arranged for Mr Jas Kalsi through this platform are private, either self-pay or covered by private medical insurance.

Does Mr Jas Kalsi offer private appointments?

Yes, Mr Jas Kalsi offers private appointments for patients seeking flexible and direct access to a consultant urologist.

Does Mr Jas Kalsi offer online consultations?

At the moment, Mr Jas Kalsi does not offer online consultations. You can book an in-person appointment from this page or call +44 02076617329. When calling, please mention that you are a Top Doctors patient.

Does Mr Jas Kalsi accept insurance?

Mr Jas Kalsi works with the following private medical insurance providers: Bupa, AXA, AVIVA, Cigna, WPA and Vitality. If your insurer is not listed, you may contact the practice directly to confirm your coverage.

What is Mr Jas Kalsi's availability?

Mr Jas Kalsi's availability depends on the appointment slots open at any given time. On this page, you can check current availability, and if no slots are shown, you can request an appointment or contact the practice directly.

What payment methods does Mr Jas Kalsi offer?

You can pay for your consultation with Mr Jas Kalsi using the following methods: Self-paying or Prepaid.

What languages does Mr Jas Kalsi speak?

Mr Jas Kalsi is a urologist who offers consultations in English, Hindi and Punjabi.

How is Mr Jas Kalsi selected to appear on this platform?

All doctors listed on Top Doctors, including Mr Jas Kalsi, undergo our rigorous selection process. Only one in five specialists meets the required standards to be included.
Discover Top Doctors' rigorous medical selection process.
The doctor, or where applicable the hospital or medical centre in which the doctor provides services, undertakes to keep the information relating to the prices of services published on their profile on the Top Doctors platform up to date at all times, ensuring that such prices correspond to those effectively charged to patients. In the event of any discrepancy between the published price and the price ultimately charged to the patient, the doctor and/or the relevant hospital or medical centre shall be solely liable towards the patient and towards Top Doctors for any claim or financial difference arising therefrom.

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The Princess Margaret Hospital - part of Circle Health GroupWindsor, Osborne Road, SL4 3SJ
Payment methodSelf-paying
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