2010 - 2012
M. Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital
2002 - 2010
Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital
1993 - 1998
İ.Ü. Istanbul Faculty of Medicine
2015 - 2015
Medipol Üniversitesi Parkinson Hastalığı ve Hareket Bozuklukları Merkezi
2009 - 2009
Medicalpark Bahçelievler Hastanesi
1999 - 2004
Medicalpark Bahçelievler Hastanesi
1997 - 2009
Amerikan Hastanesi
1997 - 1997
VKV Amerikan Hastanesi
1995 - 1995
Division of Neurosurgery, Toronto Western Hospital Research Fellow
1995 - 1995
Department of Neurosurgery, The Johns Hopkins Hospital
1995 - 1997
Toronto Western Hospital,
1994 - 1994
Division of Neurosurgery, Toronto Western Hospital
1992 - 1992
Department of Neurosurgery, University of Virginia
1992 - 1992
Department of Neurosurgery, University of Washington
1992 - 1992
İsrail Kudüs, The European Association of Neurosurgical Societies European
1991 - 1991
İspanya Zaragoz- The European Association of Neurosurgical Societies European
1990 - 1990
Glasgow, Scotland, İngiltere
1990 - 1990
Glasgow ve Edinburg, The British Council
1990 - 1990
Glasgow ve Edinburg, The British Council1994
Marmara University Institute of Health Sciences, Neurophysiology
1993
Marmara University Faculty of Medicine, Neurosurgery and Neurosurgery
1989
Marmara University Faculty of Medicine, Neurosurgery and Neurosurgery
1983
Hacettepe University, Faculty of Medicine
1983
Hacettepe University, Faculty of Medicine
Urology
Fields of Study and Interests
• Urooncology
• Prostate cancer
• Bladder Cancer
• laparoscopy
• Endourology
• Robotic Surgery
• Stone Diseases
• Andrology
• İnfertility
Education
• Health Sciences University GOP Taksim Training and Research Hospital Urology Specialization
Training 2017, Istanbul / Turkey
• Istanbul University Faculty of Medicine Medical Doctor Education 2011, Istanbul / Turkey
Career
• Yeni Yüzyıl University Private Gaziosmanpaşa Hospital 2020-2021, Istanbul / Turkey
• Sisli Florence Nightingale Hospital 2020, Istanbul / Turkey
• GOP Taksim Training and Research Hospital 2017-2020, Istanbul / Turkey
• GOP Taksim Training and Research Hospital (Medical Specialization Training) 2012-2017,
Istanbul / Turkey
• Marmara Ereglisi District State Hospital 2011, Istanbul / Turkey
Publications: Cilesiz NC, Erdoğan N, Özkan A, Kalkanlı A, Hazar Aİ, Balcı MBC, Aydın M, Özdemir
E. Pleomorphic undifferentiated sarcoma: A case of a giant renal mass. Urol Case Rep. 2018 Jan
8;17:44-47. doi: 10.1016/j.eucr.2018.01.002. eCollection 2018 Mar. PubMed PMID:
He entered Istanbul University Cerrahpaşa Faculty of Medicine in 1987 and started his compulsory service in Akçaabat district of Trabzon in 1993. In January 1995, he was admitted to the Hepato-Biliary Surgery service of the Universite Libre Bruxelles Erasmus Hospital in Brussels, Belgium. He started his General Surgery residency in October 1996 and became a General Surgery Specialist in Belgium in 2002 with the thesis "Le Re-do Gastroplastie dans le traitement des complications des Procedure Bariatriques pour Obesité Morbide" (Revision Surgery in the Treatment of Complications of Bariatric Procedures for Morbid Obesity).
He worked in the Hepatobiliary Surgery service of ULB Erasmus Hospital until October 2003, and then in October 2003 he joined Providence Hospital in Neuchatel, Switzerland as Deputy Chief of Surgery Clinic. In March 2004, he was appointed as Chief of Surgery Clinic at Neuchatel Hospital Cadolles Pourtales NHP and played an important role in Advanced Laparoscopic Surgery, Bariatric Surgery, Oncologic Surgery, Traumatology, Vascular and Thoracic Surgery and resident training.
He started his career in the private sector by obtaining equivalency in the field of General Surgery at Çukurova University. He is currently serving as a General Surgery Specialist at NPISTANBUL Hospital.
Areas of Interest:
Pediatric Hematology and Oncology / Pediatric Oncology
General Surgery
Fields of Study and Interests
Pancreatico-Biliary Surgery
Gastroenterology Surgery
Endoscopic Diagnostic Treatment
Trauma and Emergency Surgery
Education
Bachelor's Degree - Istanbul Faculty of Medicine Istanbul University 1976-1982
Assistant - Department of General Surgery - Adana Province Feke District, Incirli Health Center
1982-1984
Assistant General Surgeon - Department - Şişli Etfal Hospital 1984-1985
Specialist - General Surgery Istanbul University, Istanbul Faculty of Medicine 1985-1988
Assistant Professor Department of General Surgery - Istanbul University, Istanbul Faculty of
Medicine 1993-1999
Professor Department of General Surgery Istanbul University, Istanbul Faculty of Medicine
1999-Current
Career
Bachelor's Degree Istanbul University Istanbul Faculty of Medicine 1976-1982
Assistant Adana Province Feke District, Incirli Health Center 1982-1984
Assistant Şişli Etfal Hospital 1984-1985
Specialist Istanbul Faculty of Medicine 1985-1988
Specialist Şırnak 23rd Border Gendarmerie Brigade (January 15-March 15 short term) 1993
Associate Professor Istanbul University Istanbul Faculty of Medicine 1993-1999
Professor Istanbul University Istanbul Faculty of Medicine Department of General Surgery
Medical Oncology
Fields of Study and Interests
Gastrointestinal System (GI) Cancer
Cancer Vaccines
Breast Cancers
Lung Cancer
Rare Cancers
Education
MD: Necmettin Erbakan University Meram Faculty of Medicine, 1994
Internal Medicine Specialist Training: Atatürk University Faculty of Medicine, 2004
Internal Medicine Specialist Training: Kafkas University Faculty of Medicine, 2007
Medical Oncology Sub-Specialist Training: Selçuk University Faculty of Medicine, 2010
Medical Oncology Sub-Specialist Training: Istanbul University Oncology Institute, 2013
Career
Assistant Professor: Atatürk University Faculty of Medicine, 2005
Assist. Prof. Dr.: Kafkas University, 2006-2007
Minor Assistant Professor: Selçuk University – Medical Oncology, 2007-2010
Minor Assistant Professor: Istanbul University Oncology Institute – Medical Oncology,
2012-2013
Specialist Professor: Istanbul University Oncology Institute – Medical Oncology, 2013-2017
Assoc. Prof. Dr.: Istanbul University Oncology Institute – Medical Oncology, 2017-2023
Prof. Dr.: Istanbul University Oncology Institute – Medical Oncology, 2023-present
Prof. Dr. Yasef began his medical education at Istanbul University in 1973 and graduated from Istanbul University Cerrahpaşa Faculty of Medicine in 1979. He started his specialization in neurology at the same university in 1980 and became a neurologist in 1985. During his specialty training, he spent 6 months at Hacettepe University in the Neurology Department in Ankara.
After becoming a neurologist, he completed 3.5 years of obligatory government service, spending the first 1.5 years at the Iskenderun Navy Hospital and the next 2 years at Diyarbakır Social Security Hospital. He returned to Istanbul University in 1989.
Prof. Dr. Yasef worked abroad in the United States from 1990 - 1991, focusing on dementia and behavioral neurology.
In 1994, he became an Associate Professor and continued working at Istanbul University until 1999. Between 1999 - 2002, he worked at Florence Nightingale Hospital, and then at Kozyatağı Acıbadem Hospital from 2004 to 2013.
Since 2013, he has been a valuable part of the team at Florence Nightingale Hospital.
Specialties
Work Experience
Orthopedics And Traumatology
Fields of Study and Interests
• Trauma Surgery
• Arthroscopic Surgery
• Arthroplasty
Education
• Istanbul University Istanbul Faculty of Medicine
• Medical Doctor Education
• 2010, Istanbul/Turkey
• Bezmialem Vakif University Faculty of Medicine
• Orthopedics and Traumatology Specialization Training
• 2016, Istanbul/Turkey
Career
• Hakkari Yüksekova State Hospital
• 2016-2017, Hakkari/Turkey
• Bezmialem Vakif University Faculty of Medicine Hospital
• 2011-2016, Istanbul/Turkey
• Mus State Hospital (State Service Obligation)
• 2010-2011, Mus/Turkey
• Mus Varto State Hospital
• 2010, Mus/Turkey
Publications: Articles published in international peer-reviewed journals
Polat G, Ceylan HH, Kuyucu E, Demir N, Karademir G, Erdil M. Changes in Body Mass Index after
Arthroscopic Surgery and Its Effect on Functional Outcomes, International Journal of Clinical
Fields of Study and Interests
• Diagnosis And Treatment Of Infertility
• Pregnancy Diagnosis And Follow-Up, Delivery
• Genital Aesthetic Operations And Laser Applications
• Laparoscopic Gynecological Surgery
• Histeroscopy
• Endometriosis
• Leiomyomas
• Ovarian Cyst
• Menstrual Irregularity
• Diagnosis And Treatment Of Vajinitis
Education
• Doctorate Education Faculty Of Medicine T.R. Yedi̇Tepe University 2002-2008
• Specialty Education Gynecology And Obstetrics Department Istanbul University Cerrahpaşa
Faculty Of Medicine 2009-2013
• In Vitro Fertilization Certificate In Vitro Fertilization Training Center T.R. Yedi̇Tepe University
Hospital September 2021- February 2022
Career
• Operator Doctor Muş Malazgirt State Hospital (Compulsory Service) 2014-2015
• Operator Doctor Medipol Esenler Hospital 2015-2016 Doctor Faculty Member Biruni
University Hospital 2016 2022
• Operator Doctor Memorial Şişli Hospital 2022-2023
Publications: cepni i, güralp o, ocal p, salahov r, gurleyen h, idil m. an alternative treatment
option in tubal ectopic pregnancies with fetal heartbeat: aspiration of the embryo followed by
single-dose methotrexate administration, fertil steril. 2011 jul;96(1):79-83. doi:
10.1016/j.fertnstert.2011.02.058. epub 2011 may 20. pmid: 21601198 [pubmed - indexed for
Dr Önul is FROM THE BEST DOCTORS in the field of Endoscopic skull base surgery and pituitary surgery Brain tumor surgery (Neuro Oncological surgery)
I was born in Artvin in 1977. He became a doctor from KTU Faculty of Medicine in 2001, and Bakırköy Prof. Dr. I became a Neurosurgery Specialist by getting the title of specialist from Mazhar Osman Mental Health and Neurological Diseases Training and Research Hospital. Again, in the same hospital, I was entitled to the title of associate professor in 2016. I continue to work at Başakşehir Çam and Sakura City Hospital, where I voluntarily joined with the task of establishing the Neurosurgery Clinic with my teammates. I am married and have 2 children. I love painting. I am very interested in children's literature. I have 10 printed children's tales
2023 - Present, Antalya/Türkiye
MEMORIAL ANTALYA HOSPITAL
Urology Specialist
2020 - 2022, Antalya/Türkiye
MEDSTAR TOPCULAR HOSPITAL
Urology Specialist
2016 - 2020, Antalya/Türkiye
MEDICAL PARK ANTALYA HOSPITAL
Urology Specialist
2007 - 2016, Antalya/Türkiye
LIFE HOSPITAL
Urology Specialist
1991 - 2006, Antalya/Türkiye
AKDENİZ UNIVERSITY FACULTY OF MEDICINE
Urology Specialist
Professor of Thoracic Surgery (2013–present). Thoracic Surgery Specialist at Memorial Göztepe (2025–present) and Memorial Ataşehir (2024–present), Istanbul. Former Chair, Department of Thoracic Surgery, Marmara University School of Medicine (2018–2024).
MD, Marmara University (1993). Completed thoracic surgery residency in 2000. International training at Marie Lannelongue Hospital, Paris (2000–2008). Further training at Toronto General Hospital, Thoracic Surgery & Lung Transplantation Clinic (2013), and UC San Diego, Pulmonary Endarterectomy & Lung Transplant Clinic (2013).
Publications in the European Journal of Cardio-Thoracic Surgery, Annals of Thoracic Surgery, and Thoracic and Cardiovascular Surgeon. Topics include pulmonary endarterectomy (PEA) for chronic thromboembolic pulmonary hypertension (CTEPH) (2013) and massive hemorrhage after PEA (2012). They also cover PEA in Behçet’s disease (2018), sleeve lobectomy (2007), and surgery for T4 non–small cell lung cancer over 25 years (2008).
Education and Expertise
(1994 – 2000) - GATA Faculty of Medicine Ankara
(2003 – 2007) - GATA Medical Faculty Pediatrics and Diseases
(2008 -2011) - Ankara University Pediatric Endocrinology
(03.03.2014) - Associate Professorship, Pediatric Endocrinology
(17.07.2019) - Professorship, Istinye University Faculty of Medicine
Experience
(2001 – 2003) - Special Forces Command/Ankara
(2007 – 2008) - Etimesgut Military Hospital/Ankara
(2011 – 2013) - GATA Medical Faculty Hospital/Ankara
(2013-2015) - GATA Haydarpasa Training Hospital/Istanbul
(05.2015-09.10.2017) - May 2015-09.10.2017 - Süleymaniye Gynecology and Pediatrics Training and Research Hospital/Istanbul
(07.2015 – 01.2016) - Suleymaniye Gynecology and Pediatrics Training and Research Hospital Pediatrics Administrative Responsibility/Istanbul
01.2016 - 09.11.2017 - Suleymaniye Gynecology and Pediatrics Training and Research Hospital Pediatric Clinic Education Responsibility / Istanbul
(03.03.2016 - 30.10.2017) - Süleymaniye Gynecology and Pediatrics Training and Research Hospital Management
(2017-2020) - Istinye University Faculty of Medicine Faculty Member
(2020-Present) - Istanbul Aydın University Faculty of Medicine Faculty Member
(20.10.2020-Present) - Head of Department of Child Health and Diseases, Faculty of Medicine, Istanbul Aydın University
Courses and Certificates
2001 - Flight Doctor Course
2010 - Project Management Training Course
2013 - Basic Epidemiology course
2018 - Trainer Training Course
Professional Memberships
Pediatric Endocrinology and Diabetes Association
European Society of Pediatric Endocrinology (ESPE)
Istanbul Medical Chamber
Awards
İhsan Turan, Ian Hutchins, Bülent Hacıhamdioğlu, Leman Damla Kotan, Fatih Gürbüz, Mehmet Taştan, Ayça Ulubay, Eda Mengen, Bilgin Yüksel, Susan Wray, Ali Kemal Topaloğlu. CCDC141 Mutation in idiopathic hypogonadotropic hypogonadism. XVI. First Prize in Oral Presentation at the National Pediatric Endocrine and Diabetes Congress.
Bülent Hacıhamdioğlu, Gönül Öçal, Merih Berberoğlu, ZeynepŞıklar, Ercan Tutar, Suat Fitöz, Gökhan Nergizoğlu, Şenay Savaş Erdeve, Emine Çamtosun. Control of premature microvascular aging and cardiovascular performance in obese adolescents. XVI. was held in Samsun on 6-10 November 2012. Second Prize in Oral Presentation at the National Pediatric Endocrine and Diabetes Congress.
Z. Siklar, G. Ocal, M. Berberoglu, B. Hacıhamdioğlu, Ş. Savas Erdeve, Y. Egin, N. Akar. Control of hypercoagulability caused by obesity in children with endothelial microparticle level and thrombin generation test, and the relationship between risk and metabolic parameters. First Prize in Oral Presentation at the 55th Turkish National Pediatrics Congress held in Antalya on 12-16 October 2011
Z. Şıklar, V. Topçu, P. Kocaay, M. Berberoğlu, B. Hacıhamdioğlu, S.S. Erdeve, H.R. Ilgin, A. Tükün, G. Öcal. Clinical Characteristics of Our Cases with Mutation in the Androgen Receptor Gene. XVI. was held in Samsun on 6-10 November 2012. First Prize in Oral Presentation at the National Pediatric Endocrine and Diabetes Congress.
He was born in Giresun-Espiye in 1961. He received his primary and secondary education in Espiye and Trabzon. He started his medical education at Hacettepe University, Trabzon Faculty of Medicine in 1978 and graduated from Karadeniz Technical University Faculty of Medicine in 1985. He did his 2-year compulsory state service as an Emergency Physician in the Emergency Service of Çanakkale State Hospital. In 1987, he started his specialization training at Istanbul University, Cerrahpaşa Faculty of Medicine, Department of Thoracic and Cardiovascular Surgery. He completed my specialization training in 1993 and started to work as a specialist in the same department. Continuing his professional and academic life at Cerrahpaşa Faculty of Medicine, Department of Cardiovascular Surgery, he became a professor and chaired the chair.
During and after his specialization training, he was found in various hospitals in many different countries for vocational training and development purposes. In addition to various fields of Cardiovascular Surgery, he has worked for many years in the fields of cardiovascular traumatology, multi- and interdisciplinary cardiovascular surgery, video-thoracoscopic endoscopic surgery and thoracic surgery.
In addition to his academic and surgical professional studies, he has a master's degree in the field of "Health Institutions Management" and has also held managerial positions such as Head of Cardiovascular Surgery Department at Cerrahpaşa Medical Faculty, Deputy Chief Physician, Istanbul University, Revolving Fund Management.
He is amateurishly interested in social sciences in medicine and in this sentence "Medical Humanities" and "Medical illustration".
He has more than 200 articles published in national and international journals, over 200 international scientific citations, various book chapters on different topics, over 150 scientific studies and speeches presented at various national and international meetings.
Professor of Pediatric Cardiology. Pediatric Cardiology Specialist at Memorial Ataşehir (2024–present) and Memorial Göztepe (2025–present). Co‑founding faculty member and Director of the Pediatric Cardiology Angiography Units at Başakşehir Çam & Sakura City Hospital (2020–2024).
Authored over 100 international and over 50 national papers. Citations exceed 1,200, with an H‑index of 16. Gave over 100 international and over 700 national presentations. Contributed to 3 translations and 7 chapters. Awards include 6 national and 1 international. Ranked second in Türkiye on the 2017 National Pediatric Cardiology Board exam. Vice Chair of the Interventional Cardiology Working Group (2019–2024). AEPC member. Training includes Arkansas Children’s PICU (2010), non‑fluoroscopic interventions at Fuwai (2018), and LVAD (2023). Since 2018, has performed over 250 pediatric interventional angiography procedures on missions.
Cardiology
Fields of Study and Interests
• Interventional Cardiology
• Peripheral Artery Diseases
• Heart Valve Diseases
• Hypertension
• hyperlipidemia
• Heart failure
• Leg Vascular Diseases
Education
• Istanbul University Institute of Cardiology /Cardiology Specialization Training 2010,
Istanbul/Turkey
• Uludag University Faculty of Medicine /Medical Doctor Education 2005, Bursa/Turkey
Career
• Istanbul University-Cerrahpasa Institute of Cardiology 2012-2021, Istanbul/Turkey
• Adıyaman 82nd Year State Hospital 2010-2012, Adıyaman/Turkey
Publications: Abacı Okay, Özkan Alev, Kocas Cüneyt, Çetinkal Gökhan, Karaca Osman Sükrü,
Baydar Onur, Kaya Aysem, Gürmen Azız Tevfik (2015). Impact of Rosuvastatin on Contrast-
Induced Acute Kidney Injury in Patients at High Risk for Nephropathy Undergoing Elective
Angiography. The American Journal of Cardiology, 115(7), 867-871., Doi:
10.1016/j.amjcard.2015.01.007