Mr Oliver Warren

Written by a private patient at OneWelbeck

Having been referred to Mr Warren by my GP, I have been enormously impressed by his care, clarity, effectiveness and efficiency. A colonoscopy, some surgery to remove polyps and to band haemorrhoids has resulted in a genuinely transformative healthcare experience. My expectations were managed succinctly by Mr Warren and the procedures were faultless, with immediate positive results and a follow up consultation to understand findings and longer term planning. I can recommend Mr Warren without hesitation.

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Written by a private patient at OneWelbeck

Having recently moved to London from Hong Kong where I had excellent doctors, I was incredibly impressed with Dr Warren's professionalism and thorough knowledge and understanding of his field. Even when faced with a complicated health history such as mine, he totally got it. I'm very thankful to my GP for referring me.

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Written by a private patient at The Lister Hospital

With a suspected inguinal hernia , I consulted Oliver Warren, who was recommended to my by my GP and also a consultant surgeon who had operated on my prostate. I was able to secure an initial appointment very quickly and Mr Warren confirmed the hernia diagnosis. Six days later, I was admitted to The Lister Hospital in Chelsea where Mr Warren operated. Following admission at noon, I was seen by the anaesthetist and Mr Warren himself within an hour. The operation was scheduled for around 1.30 pm and I was back in my room by about 4.00 pm. Mr Warren came to check on me after the operation and confirmed that I could go home if I felt up to it. (I had the option of staying overnight if I wished.) I left the hospital at around 6.30 pm. I have since seen Mr Warren for a follow-up consultation. He confirmed that the wounds were healing very well and there were no problems. He also reassured me that my remaining discomfort was perfectly normal and unsurprising since I had undergone an operation only two weeks before (and I am 72). I was very pleased with the entire treatment and would have no hesitation in recommending Mr Warren.

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Written by a private patient at The Lister Hospital

All good thank you

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Written by a private patient at The Lister Hospital

I had several independent referrals to Mr. Warren as the best surgeon for colorectal procedures (elective removal of sigmoid colon due to diverticulitis). He shared his patient outcome statistics with me and I had them verified by a top surgeon in the United States. My first consultation with Mr. Warren was impeccable. His ability to explain the procedure and the potential risks and outcomes was unbiased and clear (he did it urge me to surgery) His assistant was prompt in scheduling appointments and in responding. In between my consultation and my first surgery date, I contracted Covid. Mr. Warren and his team were great in responding and rescheduling. My surgery was done in Lister hospital. A week before my surgery, I had a pre-surgery consult for blood tests and bowel prep process provided to me to take the day before surgery (hospital handles this) which was straightforward. On the day of the surgery itself, I checked into the hospital at noon and was third on the operating list with a surgery time of 4pm. Once wheeled into surgery, Mr. Warrens surgery prep team including the anesthesiologist that he works with were first-class. They made me feel at ease and before I knew it, I was in recovery. The staff at the hospital were amazing and the team who works with Mr Warren were flawlessly in synch. Mr Warren visited me everyday and I progressed fast enough for a 3 day discharge (as I write this, I am on day 5 and mobile up to 10 mins at a time with daily decreasing pain) I would highly recommend Mr Warren if you are considering colorectal surgery.

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