Page 42 - Treatment in Istanbul (Turkey)

Dr. Berrak Beyoglu Oruc is a specialist in obstetrics, gynecology, and IVF at Memorial Göztepe Hospital (2025–). She previously worked at Bahçeşehir University Medical Park Göztepe Hospital and Ağrı Training and Research Hospital. She also served as a research physician in gynecologic oncology at Bologna University S. Orsola (2022).

Accreditations and key training include: Certified ART Clinical Training, American Hospital (2025); GESEA MIGS Level 1 – European Certified Minimal Invasive Gynaecological Surgeon (2024). She also completed the Harvard Women’s Health and Menopause Course (2025), ESGO ORSI Robotic Surgery (2022), ESGO Masterclass (2022), and TMFTP Second Trimester Ultrasound (2024).

Awards: First prize, oral presentation—Transperineal Ultrasonography in Predicting Operative Delivery (13th Maternal–Fetal Medicine and Perinatology Congress, 2023). Third prize—Aortic Dissections (2016). Memberships: ISUOG, ESGE, MIJID, TJOD.

Dr. Buse Cagla Ari, MD, is an Associate Professor of Neurology. She specializes in Parkinson’s disease and other movement disorders, headache disorders, sleep disorders, and dementia. She works at Istanbul Medipol University and the Parkinson’s Disease and Movement Disorders Center (PARMER). She previously served as an Assistant Professor at Bahcesehir University.

Her research focuses on Parkinson’s disease biomarkers, cognition, uric acid and cholesterol associations, restless legs syndrome, and complex headaches. This includes a 13-patient case series. She has published 15 international and 4 Turkish papers and 5 book chapters. Her work has 147 citations on Google Scholar (h-index 5) and 91 citations on Web of Science (h-index 5).

She is a member of the International Parkinson and Movement Disorders Society, the International Headache Society, and the Turkish Parkinson’s Disease Society. She serves as a peer reviewer for SAGE Open Medical Case Reports, BMC Neurology, and Parkinsonism & Related Disorders.

Dr. Ahmet Ekmekci is a cardiology specialist at Memorial Göztepe Hospital in Istanbul, since 2025. He earned the title of Associate Professor of Cardiology (Doçent) in 2014.

He served as Chief Assistant in Cardiology at Dr. Siyami Ersek Training and Research Hospital in 2010. He completed his cardiology residency at the same hospital in 2009. He finished his internal medicine residency at the Istanbul Faculty of Medicine from 2002 to 2007. He received his MD from Istanbul University, Istanbul Faculty of Medicine, in 2002.

He is a member of the Turkish Society of Cardiology, the European Society of Cardiology, and the European Heart Failure Association (Gold Member). He is also a member of the Istanbul Internal Medicine Association, the Stem Cell and Cellular Therapies Association, the Istanbul Medical Chamber, and the Turkish Medical Association. He served on the Board of the Turkish Society of Cardiology Heart Failure Working Group in 2016.

Dr. Isik Okuyan is an obstetrics and gynecology specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously worked at Şanlıurfa Training and Research Hospital (2023–2025). He completed his OB/GYN residency at SB University Istanbul Training and Research Hospital (2019–2023). He earned his MD from Mersin University (2011–2017).

His credentials include GESEA Level 1 in Gynecological Endoscopy (Marseille, 2024). He presented a video and a poster at the 33rd ESGE Congress (2024). He is a member of the Turkish Medical Association, the Turkish Society of Gynecology and Obstetrics, and ESGE. He took part in meetings from 2022 to 2025, including ISON and national gynecology congresses.

Dr. Muslim Sahin is a cardiology specialist at Memorial Göztepe Hospital (2025–present). He previously worked at VM Medical Park Pendik Hospital (2018–2025), Kartal Koşuyolu High Specialty Training and Research Hospital (2010–2018), Kartal Yavuz Selim State Hospital (2007–2010), and Kayseri Military Hospital (2006–2007).

He completed his cardiology residency at Maltepe University Faculty of Medicine (2001–2005). He earned his MD from Istanbul University Cerrahpaşa Faculty of Medicine (1995–2001).

He is a member of the Turkish Medical Chamber, the Turkish Society of Cardiology, the EuroCTO Club, and the European Society of Cardiology. He has completed training in TAVI, MitraClip, and renal denervation.

Dr. Tolga Sinan Guvenc is a cardiologist at Memorial Göztepe Hospital (2025–). He previously worked at VM Medical Park Pendik (2019–2025) and at Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital (2014–2018).

He has authored over 200 scientific articles and book chapters. He serves on the Editorial Board of Scientific Reports.

He is a Fellow of the ESC Heart Failure Association. He is also a member of the Turkish Society of Cardiology, the European Society of Cardiology, and Sigma Xi.

Advanced training includes a clinical fellowship in the Advanced Heart Failure Unit at the University of Alberta. He also served as a visiting scientist at the Echocardiography Station at the University of Alabama at Birmingham. Education: MD, Istanbul University Cerrahpaşa (English). Cardiology residency, Dr. Siyami Ersek.

Dr. Basak Sargin is an obstetrics and gynecology (OB/GYN) specialist at Memorial Göztepe Hospital. She has worked at Medipol Mega University Hospital (IVF and Reproductive Health Center), Medipol Acıbadem Region, Memorial Ataşehir Hospital, and Kars Harakani State Hospital.

Accreditations: FMAS and DMAS, World Laparoscopy Hospital (2023). ART training, American Hospital (07/2024–01/2025). Fellowships: Minimally Invasive and Advanced Gynecologic Surgery, Pius University, Oldenburg (07/2025); World Laparoscopy Hospital (05/2023). Additional training in robotic surgery, hysteroscopy, vNOTES, embryo transfer simulation, and laser/magnetic stimulation.

Education: MD, Hacettepe University. OB/GYN residency, Ankara (2016–2021). PhD candidate in Biomedical Engineering, Koç University (since 2023). Memberships: SRGS, International Society of Gynecology and Obstetrics, ESGE, WALS, and Istanbul Medical Chamber.

Dr. Ahmet Mutlu is an ENT specialist at Memorial Göztepe Hospital (2025–present). He holds European Board certification in ORL‑HNS (FEBORL‑HNS, 2018) and National ENT Board certification (2016). Education: MD, Kocaeli University (2011). ENT residency, Kocaeli University (2011–2016). Master’s in Audiology, Başkent University (2017).

Previous posts: Istanbul Medeniyet University (2019–2025). Üsküdar State Hospital (2016–2019). Kocaeli University (2011–2016). Training: Otology‑Neurotology School (2019–2020). Laryngology & Phoniatrics School (2021–2022). Portmann Institute microsurgery course (2013). Memberships: Turkish ORL‑HNS, Istanbul ENT Assoc., Otology‑Neurotology, Phoniatrics, Turkish Medical Association.

Dr. Aygul Aliyeva Onen is a specialist in obstetrics and gynecology at Memorial Göztepe Hospital (2025–present). She previously worked at Medical Park Göztepe (2023–2025) and at Celal Bayar University Hafsa Sultan Hospital (2018–2023). She completed her obstetrics and gynecology residency at Celal Bayar University Faculty of Medicine (2018–2023). She graduated from Azerbaijan Medical University (2010–2016) and completed an observership at Ege University (2017).

Professional memberships include the Istanbul Medical Chamber, the Turkish Society of Gynecology and Obstetrics, and the Pelvic Floor and Cosmetic Gynecology Association. Additional training includes Current Approaches in Cosmetic Gynecology (TJOD Izmir); CCI HADYEK Laparoscopic Gynecologic Surgery; Sexual Health Federation—Vaginismus and Dyspareunia; the 1st–3rd International Pelvic Floor and Cosmetic Gynecology Congresses; and the TJOD Obstetric Simulation Course.

Dr. Fatih Gumus is a Cardiovascular Surgery Specialist at Memorial Göztepe Hospital (2025–present). He previously served at Memorial Ankara (2023–2025) and Bartın State Hospital (2018–2022). He completed his Cardiovascular Surgery residency at Ankara University (2013–2018). He was a Clinical Fellow at Johns Hopkins University in 2010. He observed Vascular Surgery at the Cleveland Clinic in 2014. He earned his MD from Hacettepe University (English program, 2005–2012).

He has authored five peer-reviewed papers on minimally invasive valve surgery, right heart and LVAD assessment, and DVT therapy. He is a member of EACTS, ISMICS, MIRC, the Turkish Society of Cardiovascular Surgery, and the Turkish Society of Vascular Surgery. He served as faculty at the 19th ICCVS. He gave oral talks at EACTS 2017, ISMICS 2018, and UIP 19th.

Dr. Mahir Cengiz is a Professor of Internal Medicine and an Internal Medicine Specialist. He works at Memorial Göztepe Hospital (2025–present). He previously served at Istanbul Aydın University–Medical Park Florya (2022–2025). He held roles at Biruni University Hospital as Lecturer and Chief Physician (2018–2022). Earlier, he was a Lecturer at Istanbul University–Cerrahpaşa Faculty of Medicine (2013–2018) and Chief Physician at Şarkışla State Hospital (2012–2013).

His track record includes 12 years as a lecturer and 5 years as a chief physician. He earned his MD from Istanbul University, Istanbul Faculty of Medicine (2000–2006). He completed an Internal Medicine residency at Istanbul University–Cerrahpaşa (2006–2011). He served as Chief Resident in Internal Medicine (2013–2017). He became an Associate Professor in 2017 and a Professor in 2022.

Dr. Deniz Goren is a specialist in internal medicine and hematology at Memorial Göztepe Hospital (Istanbul). Dr. Goren previously worked at Memorial Şişli, Istanbul Florence Nightingale, and Eskişehir Yunus Emre State hospitals.

Dr. Goren served as an associate professor at Demiroglu Bilim University from 2020 to 2024 and earlier as an assistant professor from 2017 to 2020. Dr. Goren completed a hematology subspecialty at Eskişehir Osmangazi University. Dr. Goren completed an internal medicine residency and earned an MD at Ankara University. Dr. Goren later completed a postdoctoral fellowship at Harvard Medical School and the Joslin Diabetes Center.

Awards include TÜBİTAK 2219, the Turkish Hematology Association Young Participant and Fuat Aydınlı Young Researcher awards, and the SOHO Young Investigator Grant. Dr. Goren has published 32 international and 14 national peer‑reviewed articles and delivered 88 presentations. Dr. Goren completed the EBMT International Transplant Course, the Lymphoma Master Class, and the Advanced Life Support Course.

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).

Dr. Salih Taskin is a specialist in obstetrics and gynecology. He also focuses on gynecologic oncology and minimally invasive surgery. He works at Memorial Göztepe Hospital in Istanbul (2025–present). He previously served in Gynecologic Oncology (2014–2025) and in Obstetrics and Gynecology (2002–2025) at the Ankara University Faculty of Medicine.

Accreditations include ESGO Certified Specialist in Gynecologic Oncology (2018) and a fellowship in robotic surgery and gynecologic oncology at McGill University (2014). He completed an OB‑GYN residency at Ankara University and earned his MD at Çukurova University (both 1995–2001).

He is a member of the Turkish Society of Gynecologic Oncology; the Society of Robotic Gynecologic Surgery; the Society of Minimally Invasive Gynecologic Oncology; the Federation of Women’s Health Associations; IGCS; ESGO; ESGE; and SERGS. He is trained in robotic, laparoscopic, and gynecologic cancer surgery.

Dr. Nezih Onur Ermerak is a Thoracic Surgery Specialist at Memorial Göztepe Hospital (2025–). He previously worked in the Department of Thoracic Surgery at Marmara University (2009–2025). He also served at Kilis State Hospital during compulsory service and war surgery (2015–2017).

He completed a Thoracic Surgery fellowship at Washington University in St. Louis (2019–2020). He then completed a Thoracic & Esophageal Surgery fellowship at Dalhousie University (2020–2022). He held a visiting fellowship at Universitätsspital Bern (2011–2012). He finished his residency at Marmara University (2009–2015).

He is President of the Turkish Society of Chest Wall Deformities and Pectus. He served on the Organizing Committee of CWIG 2023 in Istanbul. He completed MI-STARs (2020), MITS (2019), CITI (2024), and KOÇ Laboratory Animal Use certification (2025). He attended the AATS 103rd meeting (2023) and European Thoracic Surgery conferences (2024 and 2025).

Dr. Ferhat Yakup Suceken is a Urology Specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously held the same role at Ümraniye Training and Research Hospital (2017–2025), Tekirdağ Saray State Hospital (2015–2017), and Ceylanpınar State Hospital (2013–2015).

He completed his urology residency at the University of Health Sciences, Ümraniye Training and Research Hospital, Department of Urology (2007–2013). He earned his MD from Kocaeli University Faculty of Medicine (2001–2007).

Professional memberships include the Turkish Urological Association and the Urological Surgery Association.

Professional training: Laparoscopy Course on Pig Model; Robotic Surgery Course; Penile Prosthesis Surgery Course; PCNL Live Surgery Course; Flexible URS Course.

Pediatric Hematology and Oncology / Pediatric Oncology

Cardiovascular surgery

Specialist of regenerative medicine