Dr. M Altan Kaya is a skilled surgeon. He specializes in gastric bypass, gastric sleeve, breast cancer surgery, and hemorrhoidectomy. He completed advanced training in minimally invasive surgery in Hamburg and Strasbourg. Dr. Kaya is dedicated to using the latest techniques to provide the best care for his patients.

He is a member of several respected surgical societies. These include the Turkish Surgical Association, the Society for Colorectal Tumor Surgery, and the European Society of Oncological Surgeons. Dr. Kaya has performed hundreds of complex surgeries. His work has helped improve patient outcomes and raise surgical standards in his field.

Medical Interests and Activities 

• Gastrointestinal diseases 

• Oncologic laparoscopic surgery 

• Anorectal area diseases 

• Urgent surgical cases (acute cholecystitis, divertikülit, ileus, pankreatit, appendicitis) 

• Colon and rectum cancer 

• Treatment of oncologic surgical cases with further laparoscopic and robotic surgery. • Laparoskopik hernia surgery 

• Esophagus and stomach cancer 

• Selim anorectal diseases (hemorrhoidal disease, anal fissure), perianal fistula, pilonoidal sinus (hairless- non-surgical treatment)

Education and Experience 

• İstanbul University Medical Faculty 1988 • University of Colorado Health Science Center – Intern Surgeon 

• Isparta, Dedeçam Şehit Ramazan Karaca Health Center (1995-1996) • İstanbul Surgery Hospital – American Hospital (2000-2001) 

• Chief assistant Istanbul Medical Faculty, Department of General Surgery (2001-2008) • World Congress on Peritonel Surface Malignancies (HIPEC course) Berlin, Germany (2012) 

• USC Keck School of Medicine, Los Angeles, CA, USA (2006-2007) 

• Assoc. Prof. M.D. , İstanbul Medical Faculty General Surgery (2008-2014) 

• Da Vinci Robotic Intensive Course at IRCAD, Strasbourg, France (2011) 

• Stony Brook Medicine Cadaver Training Event in Colon and Rectal Surgery, New York, USA (2016) (Instructor) 

• Fellow of the European Board of Surgery- Emergency Surgery (FEBS EmSurg) Honorary Diploma (2017) 

• Prof. M.D. , İstanbul Medical Faculty General Surgery (2014 -2017) 

• İstanbul University Medical Faculty – General Surgery Master of Science 1996 

• University of Southern California Medical Center, Department of General Surgery, Los Angeles, USA – February 2006 – February 2007

Scientific Publications • Endoscopic Laparoscopic & Minimal Invasive Surgery Journal Editorial Board / National Scientific Committee • UTACD Assist. Editor

He is Ear – Nose – Throat and Head and Neck Surgery Specialist. In 1974 he graduated from Ankara Ataturk High School. After he finished preparatory class in English for 1 year in ODTU, he won Hacettepe University Eskisehir Medical Faculty.

In 1980 he finished Hacettepe University Eskisehir Medial Faculty. In 1984 he got his career education in the department of ENT in Hacettepe University Medical Center. He served his military service in Ankara Mevki Hastanesi as an ENT Specialist, in 1986 he began his conscription in state of Ordu Government Hospital.

He worked in Izmir Atatürk Education and Research Hospital as chief intern in 1989, as a chef assistant in 1991, as an instructor in 1994 and worked there till June 2008. On June 20088, he worked in Namik Kemal University Medical Faculty in head of the department of ENT, Head of Department of Surgical Medical and worked as a Medical Faculty member of University Senate finally, he resigned on August in 2010.

​Dr. Azer Zeynalov is a plastic, reconstructive, and aesthetic surgeon based in Istanbul, Turkey, with over 12 years of experience in the field.

Prof. graduated from Izmir Eşrefpaşa High School in 1996. Dr. Serdar KALEMCİ graduated from Süleyman Demirel University Faculty of Medicine in 2003. In 2009, he specialized in Dokuz Eylül University Faculty of Medicine, Department of Chest Diseases. He completed his compulsory service at Şanlıurfa Suruç State Hospital in 2010.

In 2015, he received the title of associate professor while working at Muğla University Faculty of Medicine, Department of Chest Diseases. Kalemci has clinical and experimental studies in the field of Chest Diseases.

He has 50 international publications. 4 of these were published in SCI and 36 in SCI EXPANDED journals. He has 20 national publications. He has made oral and written presentations at many national and international congresses.