Specializations
RIRS (Laser Stone Breaking in the Kidney)
Open-Closed Prostate Surgeries
Urological Cancer Surgeries
Urinary Incontinence Treatment
Infertility Treatment
Dr. Özkan Onuk is a urology surgeon at Medical Park Bahcelievler Hospital in Istanbul. He specializes in minimally invasive and robotic-assisted urological surgeries. Dr. Onuk holds the title of Associate Professor from Yeni Yüzyıl University. He treats complex conditions like prostate cancer, erectile dysfunction, and urinary incontinence.
Dr. Irfan Cicin is a Professor of Medical Oncology at İstinye University Liv Hospital Topkapı. He specializes in treating complex cancers, including glioblastoma, lung cancer, and pancreatic tumors. He serves as a professor at the Trakya University Faculty of Medicine. Dr. Cicin previously served as a physician in the Turkish Air Force.
EDUCATION:
2000 - SSK Okmeydanı Training and Research Hospital, .
1996 - Istanbul University, Istanbul Faculty of Medicine
EXPERIENCE:
2019 - Istanbul Medipol University Pendik Hospital
2017 - 2019 - Private Adatıp Kurtköy Hospital
2005 - 2017 - Private Avicenna Umut Hospital
2003 - 2005 - SSK Yalova Regional Hospital
2002 - 2003 - Kayseri Military Hospital
Dr. Ramazan Gökhan Atış is a professor of urological surgery at Medipol Acıbadem District Hospital in Istanbul. He is the Secretary General of the Endourology Society. Dr. Atış trained in robotic urology at the Heidelberg University Heilbronn Clinic. He specializes in genitourinary reconstruction and urological oncology.
Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at Liv Hospital Topkapı. He specializes in treating colon, breast, gastric, and lung cancers. He previously served as the Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital. Dr. Atci is a member of the American Society of Clinical Oncology (ASCO).
Dr. Ercan Ozden is a medical oncologist and internal medicine specialist at VM Medical Park Pendik. He provides treatment for a wide range of cancers, including breast, lung, and colon cancer. Dr. Ozden trained at Istanbul University, Cerrahpasa Faculty of Medicine. He later completed a medical oncology subspecialty at Kocaeli University.
Dr. Dorit Zilberman is a senior urologist at Sheba Medical Center in Israel. She is a pioneer of robotic and minimally invasive urologic surgery. Dr. Zilberman treats kidney, bladder, and prostate cancers. She helped launch the da Vinci robotic surgery program at Sheba. Forbes Israel recognized her among the nation's best doctors.
Dr. Jair Bar is a thoracic oncologist and Deputy Director of the Cancer Center at Sheba Medical Center. He specializes in treating advanced non-small cell lung cancer using personalized immunotherapy and targeted treatments. Dr. Bar holds a PhD in Molecular Biology and leads a research lab focused on immunotherapy resistance.
Prof. Dr. Teraporn Vutyavanich specializes in Obstetrics & Gynecology, Assisted Reproductive Medicine, and Endocrinology. He is known as the father of assisted reproductive medicine in Thailand and the country’s first specialist in this field. He has authored over 100 publications. He chaired the Thai Society for Reproductive Medicine from 2005 to 2010 and from 2015 to the present.
He is a Professor at Chiang Mai University. He also serves as Director of the Reproductive Center at Chiang Mai University and Medical Director of the Chiang Mai IVF Polyclinic. He holds an MD (Honours) from Mahidol University. He is board-certified by the Thai Board of Obstetrics & Gynaecology and the Thai Subspecialty Board of Reproductive Medicine. He earned an M.Sc. in Medical Sciences from the University of Nottingham and an M.Sc. in research design from McMaster University. He completed fellowships in reproductive endocrinology at New York Hospital–Cornell and the Mayo Clinic under the Ananda Mahidol Scholarship. He is an ESHRE-certified senior embryologist.
Specializations
RIRS (Laser Stone Breaking in the Kidney)
Open-Closed Prostate Surgeries
Urological Cancer Surgeries
Urinary Incontinence Treatment
Infertility Treatment
Dr. Nir Kleinmann directs the Endourology and Kidney Stones Unit at Sheba Medical Center. He is a pioneer in kidney-sparing laser surgery for complex tumors. Forbes and ResultMed named him among Israel’s Best Doctors for 2025 and 2026. Dr. Kleinmann uses a unique dual-laser system to preserve organ function during cancer treatment.
Prof. Gil Raviv is a specialist in andrology and reconstructive urology at Sheba Medical Center. Forbes named him among the Best Doctors in Israel. He is the director of the Andrology Unit. Dr. Raviv focuses on male infertility, sexual health, and urethral reconstruction. He works at Sheba, a Top 10 world-ranked hospital.
Dr. Raanan Berger is the Director of the Cancer Center at Sheba Medical Center. He was listed in Forbes Israel’s “Best Doctors” in 2025. Dr. Berger specializes in genitourinary oncology and radiates complex prostate tumors. He completed a postdoctoral fellowship at the Dana-Farber/Harvard Cancer Institute.
Dr. Zohar Dotan heads the Urology Department at Sheba Medical Center in Israel. He is a primary pioneer of robotic and laparoscopic urologic surgery. He specializes in treating complex cancers of the kidney, prostate, and bladder. Dr. Dotan leads the Israeli Uro-Oncology Society and holds a PhD in Genetics.
Dr. Nutchada Kaewkoet is an OB-GYN and reproductive medicine specialist at the IVF Center, Piyavate Hospital in Bangkok. She has worked there since 2019. She completed her OB-GYN residency at Pramongkutklao Hospital from 2004 to 2007. She then finished a fellowship in reproductive medicine at Chulalongkorn University from 2009 to 2011.
Accreditations: She holds a medical license from the Medical Council of Thailand, active since 2001. She earned the Thai Board of Obstetrics and Gynecology diploma in 2007. She earned the Thai Subboard of Reproductive Medicine diploma in 2011.
Previous roles include medical instructor at Srinakharinwirot University from 2007 to 2012. She was a clinician at the Samitivej Srinakarin Women’s Health and Infertility Center from 2012 to 2018. She began her practice in the Department of Obstetrics and Gynecology at Sawanpracharak Hospital from 2001 to 2003. She completed her medical degree at the Faculty of Medicine, Chiang Mai University from 1994 to 2001.
Dr. Cem Basatac is an associate professor and urologist at Gayrettepe Florence Nightingale Hospital in Istanbul. He specializes in laparoscopic and robotic urological surgery. Dr. Basatac provides treatment for complex conditions like kidney cysts, varicocele, and prostate disease. He works at a JCI-accredited facility that treats 200,000 patients annually.
Dr. Pitch Chandeying is an OB-GYN with a subspecialty in reproductive medicine. He completed a fellowship in reproductive medicine at the Faculty of Medicine, Chiang Mai University.
He completed certified training in assisted reproductive technology through ATE and TSRM in 2024 and 2025. He also trained in minimally invasive surgery at Siriraj Hospital in 2024.
His expertise includes IUI and IVF/ICSI. He manages complex infertility, such as poor ovarian reserve, PCOS, and recurrent implantation failure. He also performs sperm retrieval for azoospermia (PESA, TESE) and offers PGT-A, PGT-M, and PGT-SR.
He is a member of ESHRE, ASRM, TSRM, and the Association of Thai Embryologists (ATE).
Dr. Ercan Kocakoc is a prize-winning radiologist at Medical Park Bahcelievler Hospital in Istanbul. He won 1st Prize at the 2009 ESGAR congress for clinical cases. Dr. Kocakoc specializes in interventional radiology and advanced body imaging. He completed a research fellowship at the University Hospital of Cleveland in the USA.
Specializations
Prostate Diseases Treatment
Kidney, Urinary Tract, Bladder Stone and Tumor Treatment
Infertility, Treatment of Sexual Diseases
Urinary Incontinence Treatment
Circumcision, Undescended Testicle Treatment