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Marcin Olender
21
years of experience

Marcin Olender, Gastroenterologist

  • Specialization: Gastroenterologist
  • 21 years of experience
  • Speaks:
    English, Polish
  • Workplace: Poland, Jelenia Góra, KCM Clinic
4.2
Good
20 patient verified reviews
1 star
15%
2 stars
5%
3 stars
5%
4 stars
10%
5 stars
65%

Patient reviews

About clinic KCM Clinic
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1-5 of 20 reviews
Anonymous • Endoscopic sleeve gastroplasty (ESG)
Norway
Oct 17, 2026
Verified review.
I liked the clinic and the ladies who have everything under control, even after I came home—my biggest worry was aftercare, but they stay in touch
I liked the clinic and the ladies who have everything under control, even after I came home—my biggest worry was aftercare, but they stay in touch. The doctor was nice, though we only spoke for about ten minutes. I do wish the diet instructions were on paper; a lovely lady explained everything and I can still call her, but I would prefer it written. My procedure used the OverStitch system to place a double suture line. I’m feeling better than expected, though there was an extra cost for a scan.
Like the clinic and the ladies how have everything Anderi control even after I con home Nice doktor
Better information about what to eat and how long in paper if if a lovlig lady comes and tells me this And i text her and see call my❤️
Robert • Urological examination
Norway
Oct 10, 2026
Verified review.
My decision to come here feels right
The urologist began my appointment by clearly explaining every step of the examination, which set a professional and reassuring tone from the very start. That standard of care was consistent throughout my entire interaction with the clinic. The coordination was seamless, and the on-site medical team was professional and supportive. When I think back on what I liked about the process, from the first contact to the procedure itself, my honest answer is, Everything. The surgeon was methodical and the staff were attentive. I am now in my recovery period. As for what could be better, I have no suggestions to offer.
Everything
Anonymous • Ultrasound
Ukraine
Oct 14, 2026
Verified review.
Peter • Varicose veins removal
United Kingdom
Aug 26, 2026
Verified review.
I received first-class personal treatment through every aspect of my care, from the first contact until discharge
I received first-class personal treatment through every aspect of my care, from the first contact until discharge. It was impressive. My procedure was a surgical phlebectomy for a single varicose vein in one leg. What stood out was the surgeon's approach; he performed the procedure himself and took the time to show me the ultrasound images to explain everything clearly. He also made sure I understood the compression stocking routine for my recovery. I can confirm there were no additional expenses on top of what I initially paid to the clinic.
First class personal treatment in all aspects care and treatment from initial contact to discharge. Highly recommend
Anonymous • Breast lift
Malaysia
Jul 6, 2026
Verified review.
For me, the competence of the surgeon and the supportive nature of the clinic staff were the most important factors, and both were consistently present
If you're researching a breast lift, you probably value a clear and organized process, just like I do. The entire journey, from initial inquiries to arriving at the clinic, was managed with a high degree of professionalism. Everything was handled efficiently. The clinical environment was orderly, and the staff were attentive throughout my stay. I found my surgeon to be very thorough during our discussions, making sure all technical aspects were understood before moving forward. I'm currently in the early phase of recovery, and the healing is progressing just as the medical team outlined it would. For me, the competence of the surgeon and the supportive nature of the clinic staff were the most important factors, and both were consistently present.
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Qualifications

Specialist in General Surgery | Gastrointestinal Endoscopy

Dr Marcin Olender is a specialist in general surgery with extensive clinical experience in the diagnosis and treatment of surgical and gastrointestinal conditions. At KCM Clinic, he focuses particularly on gastrointestinal endoscopy and provides patients with comprehensive diagnostic examinations of the upper and lower digestive tract.

His clinical practice combines surgical expertise with modern endoscopic diagnostic techniques, allowing patients to receive accurate assessment and appropriate recommendations based on their individual medical needs.

Areas of Expertise

Dr Olender specialises in:

  • General surgery
  • Gastrointestinal endoscopy
  • Gastroscopy
  • Colonoscopy
  • Colonoscopy with polypectomy
  • Diagnosis of diseases of the upper gastrointestinal tract
  • Diagnosis of diseases of the lower gastrointestinal tract
  • Endoscopic assessment of gastrointestinal symptoms
  • Qualification for gastrointestinal endoscopic procedures
  • Selected procedures supporting the treatment of obesity

At KCM Clinic, Dr Olender performs both gastroscopy and colonoscopy, including colonoscopy with removal of polyps when medically indicated.

Gastrointestinal Endoscopy

Gastrointestinal endoscopy is an important part of modern diagnosis and prevention of digestive system diseases.

During a gastroscopy, the oesophagus, stomach and duodenum are carefully examined. The procedure can help identify conditions such as inflammation, ulcers, bleeding and other abnormalities.

A colonoscopy allows examination of the large intestine and is an important tool in the diagnosis and prevention of colorectal cancer. When appropriate, polyps can be removed during the same procedure and subsequently sent for histopathological examination.

Dr Olender also performs endoscopic examinations as part of the diagnostic pathway for patients with gastrointestinal symptoms and conditions requiring further investigation.

A Patient-Centred Approach

Dr Olender places particular emphasis on patient safety, careful diagnosis and clear communication.

Before an examination, patients receive information about the procedure and preparation requirements. During the consultation, the patient's symptoms, medical history and individual risk factors are taken into consideration.

The goal is to make the diagnostic process as comfortable, safe and informative as possible while ensuring that patients understand the purpose and results of their examination.

Experience in Bariatric Care

Dr Olender is also a member of the multidisciplinary bariatric team at KCM Clinic. His work in this area includes gastrointestinal diagnostics and selected endoscopic procedures supporting the treatment of obesity, including the placement of a gastric balloon as part of an individually tailored weight-management programme.

Gastrointestinal endoscopy can play an important role in the assessment and preparation of patients undergoing bariatric treatment, helping physicians evaluate the condition of the digestive tract and identify potential medical considerations before treatment.

Your Visit at KCM Clinic

During your appointment, Dr Olender will discuss your symptoms, medical history and the reason for the examination. You will receive information about how to prepare for the procedure, what to expect during the examination and any necessary follow-up.

Our priority is to provide patients with professional medical care, accurate diagnostics and a comfortable experience throughout the entire diagnostic process.

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