Dr. Yavuz Yalcin is a specialist in endocrinology and metabolic diseases at Memorial Sisli Hospital in Istanbul, where he has worked since 2014. He previously served at Memorial Etiler, Private Ordu Medical Park, and Ordu State Hospital. He completed an endocrinology fellowship at Ankara Numune from 2009 to 2012. Before that, he finished an internal medicine residency at SSK Goztepe and earned his medical degree from Akdeniz University.

Academic work includes 8 international and 10 national publications. He has given 10 international and 20 national presentations and attended 39 scientific meetings. He holds the Internal Medicine Board certification (2002), Hemodialysis Responsible Physician certification (2005; renewed 2013), and Occupational Physician certification (1998). He completed thyroid and neck ultrasonography courses in 2012–2013. He is a member of the Society of Internal Medicine, the Metabolic Syndrome Society, and the Turkish Society of Endocrinology and Metabolism.

• 2010 - Currently, İstanbul/İstanbul/Turkey
  MEMORIAL ŞİŞLİ HOSPITAL
  General Surgery Specialist
• 2000 - 2010, İstanbul/İstanbul/Turkey
  MEMORIAL HİZMET HOSPITAL
  General Surgery Specialist, Assistant Head Physician
• 1992 - 1993, Gümüşhane/Gümüşhane/Turkey
  GÜMÜŞHANE PUBLIC HOSPITAL
  Compulsory Service

Dr. Mehmet Saygi is a cardiology specialist at Hisar Hospital Intercontinental in Istanbul. He has performed over 2,500 coronary angiographies throughout his career. Dr. Saygi specializes in the diagnosis and treatment of coronary artery disease and heart failure. He works at a JCI-accredited facility that serves 500,000+ patients annually.

• Performed over 300 stent and balloon procedures.
• Expert in transesophageal echocardiography and holter monitoring for arrhythmias.
• Treats complex cardiovascular conditions including heart valve diseases and hypertension.
• Trained at Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital.

2021 - Currently MEMORIAL ŞİŞLİ HOSPITAL

Associate Professor of General Surgery / Istanbul

2018 - 2021 ISTANBUL FLORENCE NIGHTINGALE HOSPITAL,

SCIENCE UNIVERSITY

Associate Professor of General Surgery / Istanbul

2014 - 2018 ACIBADEM UNIVERSITY ATAKENT HOSPITAL

Assistant Professor / Istanbul

2012 - 2013 TDV 29 MAY HOSPITAL

General Surgery Specialist / Istanbul

EXPERIENCE

2018 - Present, Istanbul, Turkey

MEMORIAL ATAŞEHİR HOSPITAL

Gastroenterology Specialist

2017 - 2018, Istanbul, Turkey

ULUS LIV HOSPITAL

Gastroenterology Specialist

2013 - 2016, Istanbul, Turkey

MEDICAL PARK BAHÇELİEVLER HOSPITAL

Gastroenterology Specialist

2011 - 2013, Nevşehir, Turkey

NEVŞEHİR STATE HOSPITAL

Mandatory Service

EDUCATION

2008 - 2011, Izmir, Turkey

DOKUZ EYLÜL UNIVERSITY

Gastroenterology Residency Training

2002 - 2007, Istanbul, Turkey

ISTANBUL FACULTY OF MEDICINE

Internal Medicine Residency Training

1994 - 2001, Istanbul, Turkey

MARMARA UNIVERSITY FACULTY OF MEDICINE

Medical Degree

SCIENTIFIC PUBLICATIONS

Numerous national and international articles and publications

PROFESSIONAL MEMBERSHIPS

• Turkish Gastroenterology Association

• Turkish Endoscopy Association

• Turkish Liver Research Association

• Internal Medicine Association

PARTICIPATION IN PROFESSIONAL TRAININGS, COURSES, AND CONFERENCES

Extensive participation in various professional training programs, courses, and congresses

Dr. Mahir Mahirogullari is an orthopedic surgeon at Memorial Şişli Hospital in Istanbul. He completed a fellowship in orthopedics and traumatology at Wake Forest University in the USA. Dr. Mahirogullari specializes in treating complex musculoskeletal injuries and joint conditions like arthrosis.

• Earned the Turkish Association of Orthopedics and Traumatology Best Verbal Declaration Award.
• Winner of multiple professional honors, including the Derviş Manizade and Altındağ Branch prizes.
• Member of the International Society of Arthroscopy Knee Surgery and Orthopaedic Sport Medicine.
• Works at Memorial Şişli, the first hospital in Turkey to receive JCI accreditation.

Dr. Ali Osman Koyuncuoğlu is a specialist in obstetrics, gynecology, and IVF at Memorial Bahçelievler Hospital (2025–present). He has 20 years of practice. His experience includes roles at Yeditepe University IVF Center, FJK Hospital IVF Center, and Acıbadem Family Hospital. He also ran a private clinic (2015–2025).

Education and credentials: MD, Istanbul University (Çapa). Residency in obstetrics and gynecology at Kartal Training and Research Hospital. Training in reproductive endocrinology and infertility (IVF) at Yeditepe University (2009–2010). Professional memberships: Turkish Medical Association, Turkish Society of Gynecology, TSRM, ESHRE, ASRM. Advanced training at Brussels IVF Center and Fertilitetsklinikken Regionshospitalet Skive IVF (Denmark). Additional courses at Acıbadem University (robotic surgery) and IRCAD Strasbourg (laparoscopic surgery).

Dr. Hasim Ustunsoy is a cardiac surgeon at Anadolu Medical Center in Istanbul. He pioneered robotic cardiac surgery using the Da Vinci system in Turkey. Dr. Ustunsoy specializes in valve repair and coronary artery bypass. He provides treatment for both adults and children with complex heart conditions.

• Former Head of the Lung Transplant Center at Gaziantep University.
• Completed fellowships at Glasgow University and Columbia University in New York.
• Served as an Associate Professor at Geneva University in Switzerland.
• Member of the International Society for Heart and Lung Transplantation.

Dr. Seref Komurcu is a medical oncologist at Anadolu Medical Center in Istanbul. He specializes in treating breast, lung, colorectal, and solid cancers. Dr. Komurcu holds both ECFMG and ESMO certifications. He previously served as a professor at Gülhane Military Medical Academy.

• Published over 110 scientific papers on cancer management.
• Provides immunotherapy, targeted therapy, and chemotherapy treatments.
• Member of the American Society of Clinical Oncology.
• Works at a clinic affiliated with Johns Hopkins Medicine.

Dr. Esra Kaytan Saglam is a radiation oncologist at Memorial Şişli Hospital in Istanbul. She specializes in TrueBeam technology and stereotaxic radiosurgery for cancer treatment. Dr. Saglam serves as the Chief Editor for the Turkish Society of Oncology. She has authored over 110 scientific publications on various oncological issues.

• Acts as the Vice President of the Turkish Society of Oncology.
• Sits on the Scientific Advisory Board for the Journal of Medical Sciences.
• Maintains membership in the European Society of Therapeutic Radiology and Oncology.
• Works at JCI-accredited Memorial Şişli Hospital, a center with top transplant success rates.

Assoc. Prof. Elif Evrim EKIN completed her education at Ege University Faculty of Medicine between and obtained the title of Medical Doctor. In 2003 she received her Radiology specialization from Izmir Bozyaka Training and Research Hospital, and also spent a year at the Ege University Department of Radiology. After obtaining her Radiology specialization, she worked at Bozüyük State Hospital and Private Eskişehir Sakarya Hospital from 2003 to 2014. Since 2014 she has worked at Istanbul Taksim Gaziosmanpaşa Training and Research Hospital for 10 years, where she obtained the title of Associate Professor in 2019, serving as the Education Coordinator and Administrative Responsible in the Radiology Education Clinic. She has published research articles in international SCI and SCI-E journals and has numerous national and international oral presentations and journal peer reviews. In 2020, she successfully completed the ‘Fundamentals of Good Clinical Practice’ training. Her special interests are musculoskeletal radiology and breast imaging.

2020 - Present, Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Neurology Specialist

2009 - 2020, Istanbul/Türkiye

PRIVATE SİŞLİ FLORENCE NIGHTINGALE HOSPITAL

Neurology Specialist

2008 - 2008, Sakarya/Türkiye

SAKARYA YENİKENT STATE HOSPITAL

Neurology Specialist

2007 - 2008, Ankara/Türkiye

ANKARA OCCUPATIONAL DISEASES HOSPITAL

Neurology Specialist

Dr. Volkan Seneger completed medical school at Dokuz Eylül University Faculty of Medicine (2007–2014). He then trained in psychiatry at Göztepe Training and Research Hospital (2015–2019). He worked as a general practitioner at Erzurum Aşkale State Hospital (2014–2015). He practiced psychiatry at Düzce Atatürk State Hospital (2019–2022), Istanbul Pendik State Hospital (2022–2025), and Private Mercan Hospital (2025).

He currently practices at Lokman Hekim Istanbul Hospital (2025–present). He is a member of the Turkish Psychiatry Association and the Turkish Medical Association.

Op. Dr. Yasemin Ongun is a specialist in Ear, Nose, and Throat (ENT) and Head & Neck Surgery. She graduated from Kocaeli University Faculty of Medicine in 2005. In 2008, she completed advanced training in Otology-Neurotology, Audiology, and Head and Neck Surgery at Hacettepe University.

Dr. Ongun has worked in both public and private healthcare settings. She served at Şanlıurfa Mehmet Akif İnan Training and Research Hospital and held the position of deputy chief physician in private hospitals. She has performed many surgeries, with a focus on rhinoplasty, endoscopic sinus surgery, pediatric ENT procedures, otoplasty, and hearing-related operations.

Dr. Süveyda Gözüküçük completed her medical education at Çukurova University Faculty of Medicine. She then specialized in Infectious Diseases at Erciyes University Faculty of Medicine and is currently serving her patients in the Infectious Diseases department at Hisar Hospital Intercontinental. Her medical interests include Infection Management in Special Convalescence (Immunocompromised), Hospital Infections, and Sterilization and Disinfection.

MEDICAL INTERESTS

• Hospital Infections
• Sterilization and Disinfection
• Hepatitis

The doctor graduated from Ege University Faculty of Dentistry, achieving the second place in the faculty. Actively engaged in all fields of Dentistry, the doctor continually advances professionally by participating in various courses, trainings, and congresses.