Kolan International Hospital, Sisli is one of the best hospitals popular in providing following specialities:
- Acupuncture and Treatment Unit
- Aesthetic, Plastic and Reconstructive Surgery
- Allergy Diseases
- Andrology
- Anesthesiology and Reanimation
- Audiology
- Brain and Nerve Surgery (Neurosurgery)
- Breast Health Center
- Cardiology
- Check Up Center
- Chest Diseases
- Coronary Intensive Care
- Dermatological and Venereal Diseases
- Emergency
- Endocrinology and Metabolic Diseases
- Eye Diseases
- Gastroenterology
- General Intensive Care
- General Surgery
- Gynecology and Obstetrics
- Hair Transplantation Center
- Hand and Micro Surgery Center
- Headache Policlinic
- Heart and Vascular Surgery
- Hematology
- Hemorrhoids and Anorectal Diseases Unit
- Imaging Unit
- Infectious Diseases and Clinic Microbiology
- Internal Dıseases
- Interventional Radiology
- IVF and Reproductive Health Center
- Medical Oncology
- Mesotherapy
- Micro Surgery Center
- Microbiology Laboratory
- Movement Disorders Center
- Nephrology
- Neurology
- Newborn Intensive Care (Neonatology)
- Obesity Surgery
- Oncology Center
- Oral and Dental Health
- Orthopedics and Traumatology
- Otorhinolaryngology
- Pediatric Cardiology
- Pediatric Health and Diseases
- Pediatric Surgery
- Perinatology
- Physical Therapy and Rehabilitation
- Psychiatry
- Psychology
- Thoracic Surgery
- Transfusion Center
- Urology