Dr. Grzegorz Kowalski performs over 900 laparoscopic gastric sleeve procedures with 19 years of experience – specializing in bariatric surgery and leading surgery departments. KCM Clinic offers an all-inclusive package for €5990, covering the surgery, 2 nights hospital stay, pre-op diagnostics, an 8-week dietary plan, and airport transfers. The clinic is ISO and Polish Association of Medical Tourism accredited, ensuring international standards.