Page 5 - Best diagnosticians: TOP 363 doctors

Dr. Michael Lotem leads the Melanoma and Cancer Immunotherapy Center at Hadassah Medical Center. He specializes in advanced immunotherapy for melanoma. He is known for his research on SLAM receptors and their role in anti-cancer immune responses. Dr. Lotem has published widely in leading medical journals.

He heads a multidisciplinary team that uses clinical data and patient samples to advance research. Under his leadership, the center has improved patient outcomes with new therapies. The center is now recognized as a leader in cancer immunotherapy.

Dr. Marcin Sobotka is a dentist and oral surgeon. He graduated in Dentistry (2005) and in Military Medicine. He completed his specialization in dental surgery in 2011–2016. Since 2016, he has worked in radiology and diagnostic imaging at the Military Institute of Aviation Medicine in Warsaw. His work includes CBCT and CT of the paranasal sinuses. He has over 15 years of experience in implantology. He trained with Prof. Simunk in implantology and maxillary sinus surgery. He also trained at Prof. Hurzeler’s clinic in implantology and periodontology.

He is a member of Polish implantology and surgical societies. His practice covers implants, extractions, sinus lift, bone augmentation, DSD digital planning, implant-prosthetics for advanced bone loss, gingivectomy, aesthetic periodontal microsurgery, and bridges and dentures on implants (all-on-X). He focuses on imaging-guided, minimally invasive, well-planned care.

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Доктор Онур Шахин окончил стоматологический факультет Университета Хаджеттепе в 2011 году и завершил специализированную подготовку на кафедре челюстно-лицевой хирургии Университета Гази в 2016 году. С 2017 года он работает академиком на кафедре челюстно-лицевой хирургии Измирского университета Катип Челеби. В 2021 году ему было присвоено звание доцента. Кроме того, с 2017 года он продолжил обучение в докторантуре на медицинском факультете Университета Эге, на кафедре стволовых клеток. Интересы доктора Онура Шахина включают в себя передовую имплантологию, аугментацию твердых и мягких тканей атрофированных челюстей, лечение all-on-X, скуловые, крыловидные и трансназальные имплантаты, медикаментозный остеонекроз челюсти (MRONJ), а также стволовые клетки и регенеративную терапию. Он был приглашенным докладчиком на многих национальных и международных симпозиумах по имплантологии и челюстно-лицевой хирургии и провел множество практических и кадаверных курсов по имплантологии. Доктор Шахин, который выполнил первый случай с имплантатами скуловой кости, крыловидной кости и трансназальной имплантации в Турции, имеет более 100 пациентов, прошедших лечение с помощью этих имплантатов. Он опубликовал более 50 статей в национальных и международных журналах и более 100 постеров/устных докладов, представленных на национальных и международных конгрессах, связанных с его научной областью. Также на сегодняшний день было сделано более 300 ссылок на публикации доктора Шахина.

 Medical Experience

- *2023 - Present*: Memorial Şişli Hospital  

 Neurosurgery Specialist / Istanbul

- *2013 - 2023*: Bezmialem University Faculty of Medicine  

 Neurosurgery Specialist / Istanbul

- *2011 - 2013*: Konya Beyşehir State Hospital  

 Neurosurgery Specialist / Konya

- *2010 - 2011*: Bezmialem University Faculty of Medicine  

 Research Assistant in Brain and Nerve Surgery / Istanbul

 Medical Education

- *2021 - 2023*: Bezmialem Vakif University Faculty of Medicine  

 / Istanbul / Turkey

- *2006 - 2011*: Bezmialem Vakif University Faculty of Medicine  

 / Istanbul / Turkey

- *2000 - 2006*: Istanbul University Cerrahpasa Faculty of Medicine  

 / Istanbul / Turkey

Op. Dr. Kubra Irmak graduated from Cerrahpaşa Medical Faculty in 2010 and then began her specialization training in the Department of Obstetrics and Gynecology at Cerrahpaşa Medical Faculty. Here, she performed numerous gynecological surgeries, laparoscopic surgeries, and urogynecological surgical procedures. After receiving her specialization in 2015, she worked briefly at Artvin Yusufeli State Hospital, subsequently received training in infertility abroad, and worked for 1.5 years in this field at Crown IVF Center. She then returned home in 2018, worked at Tokat State Hospital, and later in 2020 at Başakşehir Çam and Sakura City Hospital, where she performed hundreds of births and high-risk pregnancy surgeries. She has conducted hundreds of laparoscopic surgeries. In 2023, she started working at Istinye University Bahçeşehir Liv Hospital. At the same time, she worked as a Lecturer in the Department of Obstetrics and Gynecology at Istinye University Medical Faculty.

MEDICAL INTERESTS

• Genital Aesthetics and Cosmetic Gynecology
• Sexual Dysfunction and Vaginismus
• Laparoscopic Surgery
• Infertility Surgery
• Gynecological Surgeries

Dr. Beyza Topcu is an expert in Nutrition and Dietetics. She earned her Bachelor’s degree from Gumushane University (2014-2018). She has worked at Diettherapy Nutrition and Diet Counseling Center, Mestetik Aesthetics and Beauty Center, Estetica Beauty and Aesthetic Center, Academy Fitness, and Zafiran Restaurant.

Dr. Topcu focuses on clinical nutrition, dietary therapy, and wellness programs. She has a strong record of helping patients improve their health. She uses evidence-based methods and provides personalized care. Dr. Topcu is dedicated to promoting better nutrition through effective counseling and practice.

Dr. Serhat Seyhan is a medical genetics specialist. He is the Head Physician at the Genetic Disorders Evaluation Center, Memorial Şişli Hospital in Istanbul. He has also led genetic evaluation centers at Biruni University Hospital and Bakırköy Dr. Sadi Konuk Training and Research Hospital. Dr. Seyhan chaired the Department of Medical Genetics at Istanbul Medipol University.

He completed his medical genetics training at Karadeniz Technical University. He earned his MD from Cumhuriyet University. Dr. Seyhan gained international experience as a short-term scholar at the University of Miami. He is known for his leadership in clinical genetics and his academic work in the field.

Dr. Koray Tuncer is a gastroenterology specialist at Memorial Şişli Hospital in Istanbul. He has worked there since 2009. He previously served at Private Yunus Emre Hospital from 2003 to 2009.

He earned his MD from Istanbul University, Istanbul Faculty of Medicine (1982–1988). He completed an Internal Medicine residency at SSK Okmeydanı Hospital (1989–1993). He served as Chief Assistant in Internal Medicine at Kartal Training and Research Hospital (1995–1998). He completed gastroenterology fellowships at Haydarpaşa Numune Hospital (1998–1999) and Ege University (1999–2003).

Professional memberships include the Turkish Society of Gastroenterology, the Turkish Association for the Study of the Liver, and the Turkish Medical Association.

He has 5 international and 13 national publications. He has delivered 8 international and 41 national presentations. His additional training includes summer internships at Kantonsspital Aarau (Anesthesiology, 1985) and Kantonsspital Münsterlingen (Internal Medicine, 1987). He regularly attends postgraduate gastroenterology and hepatology courses and national congresses.

Prof. Dr. Nesrin Sarıman graduated from Marmara University Faculty of Medicine (English) in 1990 and completed her specialization in “Chest Diseases and Tuberculosis” at Fatih Sultan Mehmet Training and Research Hospital. She worked at Maltepe University Faculty of Medicine Hospital between from 2004 till 2022, obtaining the titles of associate professor and professor. Her primary areas of interest include; Obstructive Lung Diseases (Asthma-Allergy, COPD), Sleep Disorders (Obstructive Sleep Apnea Syndrome), Lung Cancer, and Smoking Cessation Treatments. She is a bronchoscopy specialist and sleep physician. She has published articles in national and international journals and has authored book chapters. She participated in a multicenter international clinical study on asthma. She has taught undergraduate and graduate courses and supervised master’s theses. She has served as a member of the Clinical Research Ethics Committee. She holds memberships in national and international associations. During the COVID-19 pandemic, she actively participated in COVID-19 services. During her years at Maltepe University Faculty of Medicine, she undertook numerous administrative and academic roles, including serving as the editor of “Maltepe Medical Journal” and as the assistant dean from 2019 till 2022. She participated in certified training programs organized under the Ministry of Health GETAT applications at Medipol University in “Functional Medicine” and “Phytotherapy” and completed training in “Hypnosis Application Training”

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.

*EXPERIENCE*

2023 - Present, Istanbul/Turkey

MEMORIAL ATAŞEHİR HOSPITAL

Pediatric Neurology Specialist

2022 - 2023, Gaziantep/Turkey

SANKO UNIVERSITY FACULTY OF MEDICINE HOSPITAL
Pediatric Neurology Specialist

2019 - 2020, Gaziantep/Turkey

HASAN KALYONCU UNIVERSITY

Pediatric Neurology Specialist

2017 - 2019, Şanlıurfa/Turkey

ŞANLIURFA TRAINING AND RESEARCH HOSPITAL

Pediatric Neurology Specialist (Compulsory Service)

*EDUCATION*

2017, Venice/Italy

San Servolo University Summer School

2014 - 2017, Kayseri/Turkey

ERCİYES UNIVERSITY FACULTY OF MEDICINE

Pediatric Neurology Fellowship Training

2008 - 2013, Istanbul/Turkey

BAKIRKÖY WOMEN'S AND CHILDREN'S DISEASES TRAINING AND RESEARCH HOSPITAL

Pediatric Medicine Residency Training

2001 - 2007, Istanbul/Turkey

CERRAHPAŞA FACULTY OF MEDICINE
Medical Doctor Education

Dr. Umut Dinçer is a specialist in Physical Medicine and Rehabilitation at Memorial Bahçelievler Hospital, where he has worked since 2018. From 2000 to 2018, he served at Medicana Çamlıca, Medical Park Bahçelievler, GATA Haydarpaşa, and Gümüşsuyu Military Hospital. He also gained experience at Cardiff University Hospital of Wales in 1995.

He earned his MD in 1994 from GATA Military Medical Academy. He completed his PM&R residency there in 2000. He is a member of the Turkish Medical Association, the Turkish Society of Physical Medicine and Rehabilitation, and the Algology Association.

He has published 60 scientific articles and delivered 40 congress presentations. He is the author of 2 books and 4 book chapters, and has translated 12 chapters. He has given lectures and training at many national and international congresses.

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. Leyla Elmas is a Dermatology Specialist at Memorial Bahçelievler Hospital in Istanbul. She previously worked at Yüksekova State Hospital and Hacettepe University Faculty of Medicine. Dr. Elmas completed her dermatology training at Hacettepe University. She earned her MD from Istanbul University – Cerrahpaşa, graduating second in her class with a GPA of 3.89 out of 4.00.

Dr. Elmas has published 10 articles in international peer-reviewed journals. She holds a national patent. She has also given several oral and poster presentations at scientific meetings. In 2024, she received the AAD Strauss & Katz World Congress Scholarship. She was named the 2023 ASDS International Dermatology Specialist of the Year.

Dr. Elmas is a member of the Turkish Society of Dermatology and the Women’s Dermatologic Society. She has completed observerships and research at Harvard, Johns Hopkins, and King’s College London.

Dr. Murat Ulusan is a specialist in otolaryngology and head and neck surgery. He works at Memorial Bahçelievler Hospital (2018–present) and at Istanbul University, Istanbul Faculty of Medicine (2010–present). He previously worked at Diyarbakır State Hospital (2009–2010) and Erzurum Regional Training and Research Hospital (2008–2009). He completed his ENT residency at Istanbul University (2003–2008). He received his MD (English) from Marmara University.

Achievements include the EORL Congress Best Poster Award (2016) and an observer program at Johns Hopkins Otolaryngology (2012, USA). His research includes 17 international and 15 national peer‑reviewed articles, 29 posters, and three TÜBİTAK projects. He has translated two books and written three book chapters. He serves as an editor for one national journal. He is a member of the Turkish Society of Otolaryngology.