Page 5 - Best Doctors in the World

The doctor graduated from Istanbul University's Cerrahpaşa School of Medicine in 2006 and completed a residency in Otorhinolaryngology at Sütçü İmam University in 2012. The doctor served as an Otorhinolaryngologist at Afşin State Hospital from 2012 to 2014.

From 2014 to 2019, the doctor was an Assistant Professor at the Otorhinolaryngology Department of Sütçü İmam University. In 2019, the doctor earned the title of Associate Professor of Medicine in Otorhinolaryngology.

The doctor specializes in otologic procedures, pediatric otorhinolaryngologic diseases, snoring surgery, head and neck tumors, laryngology, functional nasal surgeries, endoscopic sinus surgery, thyroid surgery, and salivary gland disease management.

The doctor is a highly regarded urology specialist with expertise in treating kidney, prostate, and bladder cancers. Internationally certified in robotic surgery, the doctor has performed over 600 robotic urology-oncology surgeries. Scholarly contributions include over 70 articles published in international journals, cited more than 1,500 times.

Education includes a Medical Doctorate from Istanbul University and advanced training in endourology and laparoscopic-robotic surgery at institutions such as Duke University and University Hospital Leuven.

After graduating from Istanbul University Cerrahpaşa Faculty of Medicine in 2000, he  

completed his specialization in Gynecology & Obstetrics at Başkent University Faculty of  

Medicine in 2006. He completed his compulsory state service in Nevşehir Ürgüp for 1year

and his military service in Edremit Military Hospital for 1 year. In 2009, he worked as a  

clinical observer in Israel Tel Aviv Chaim Seba Medical Center for 4 months. Between 2009-

2015, he worked as an Obstetrics and Gynecology Specialist at Adana Başkent Hospital.  

Between 2015-2018, he received specialization training in Gynecologic Oncology Surgery at  

Marmara University Faculty of Medicine. During his training, he worked as a clinical observer  

for 2 months in the gynecological oncology center of Charite University Berlin, Germany.  

After completing his subspeciality training, he successfully passed the European Society of  

Gynecologic Oncology (ESGO) exam in Athens in 2019. Between July 2018 and October 2024,  

he worked as a gynecologic oncology surgery specialist at Health Sciences University  

Umraniye Training and Research Hospital. During this period, he completed the DaVinci

Robotic Surgery course and received a robotic surgeon certificate. In 2024, he received the  

title of Associate Professor.  

Dr Cem Yalcinkaya has experience in gynecologic oncologic surgeries, and other basic and  

advanced gynecologic procedures. He is particularly interested in fertility sparing surgeries,  

laparoscopic and robotic surgical procedures.

Education:  

Post Doctorate of Medicine : Marmara University, Gynecologic Oncology Department 2015-

2018, Istanbul

Specialisation in Medicine : Baskent University, Medicine Faculty, Gynecology&Obstetrics  

Department 2001-2006, Ankara

Medical Faculty : Istanbul University Cerrahpasa Medicine Faculty 1994-2000, Istanbul

Work Experience:  

May 2006-October 2007: Urgup State Hospital (Gyn&Ob Compulsory Service)

July 2008-July 2009: Edremit Military Hospital (Military Service)

November 2009-April 2015: Adana Başkent University Hospital Gyn&Ob Department

May 2015-May2018: Marmara University Gynecologic Oncology Residency Program  

July 2018-September 2024: Umraniye Training & Research Hospital

November 2024- Recent: Anadolu Medical Center  

Experience Abroad:

August 2009-November 2009: Tel Hashomer Chaim Sheba Medical Center, ISRAEL  

July 2014-July 2014: Hamburg Asklepios Clinic, GERMANY  

February 2018-March 2018: Berlin Charite Hospital, GERMANY

Memberships to Scientific Organizations:  

ESGO-European Society of Gyneacological Oncology (membership since 2015)

TRSGO-Turkish Society of Gynecologic Oncology (membership since 2016)

Foreign Language: English  

National- International Exams: ESGO Exam Certificate (2019 )

Dr. Bestami Yalvaç completed his medical education at Istanbul University, Çapa Medical Faculty. Yalvaç, who completed his specialization training at Haydarpaşa Numune Training and Research Hospital, is particularly interested in; Dry Needling, Ozone Therapy, Fibromyalgia, Osteoporosis, Sports Injuries, Spine Health, and Kinesiotape applications.

Specialized in Ozone Therapy, Yalvaç continues his career as an Assistant Professor at Galata University.

MEDICAL INTERESTS

• Fibromyalgia
• Osteoporosis
• Stroke
• Rheumatic Pain
• Shoulder – Back – Knee – Neck Pain
• Cervical Hernia – Lumbar Hernia
• Ankylosing Spondylitis (AS)
• Left Hemiplegia – Right Hemiplegia
• Paraplegia
• Sports Injuries
• Lumbar Flattening (Hypolordosis)
• Lumbar Slip (Spondylolisthesis)
• Spinal Cord Problems
• Rheumatoid Arthritis
• Rheumatic Diseases
• Chondromalacia
• Anterior Cruciate Ligament Tear
• Nerve Compression
• Polio
• Brachial Plexus

2011 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Hand Surgery and Microsurgery Specialist

1995 - 2013, Istanbul/Istanbul/Türkiye

MANUS HAND SURGERY AND MICROSURGERY

Hand Surgery and Microsurgery Specialist

1992 - 1994, Istanbul/Istanbul/Türkiye

VKV AMERICAN HOSPITAL

Hand Surgery and Microsurgery Fellow

The doctor graduated from Çukurova University School of Medicine and completed a fellowship in Pediatric Surgery at Erciyes University. With a focus on pediatric surgery, the doctor specializes in conditions such as inguinal and umbilical hernias, appendicitis, constipation, anal fissures, hemorrhoids, ingrown toenails, and ankyloglossia. The doctor has published three articles in international peer-reviewed journals and presented 13 articles at international scientific meetings. The doctor has worked at several institutions, including Erciyes University and Kahramanmaras Children's Hospital.

The doctor is a distinguished ophthalmologist with 33 years of clinical experience in eye health. Specializing in surgical procedures, the doctor has successfully performed over 20,000 surgeries, demonstrating a commitment to high standards of patient care and satisfaction.

After graduating from Uludag University Faculty of Medicine in 1988, the doctor completed specialization in ophthalmology at Dicle University in 1992. Achieving associate professorship in 2002, the doctor attained full professorship at Harran University in 2009. Memberships include the Turkish Ophthalmological Association and the Turkish Medical Association.

Dr. Ali Cem Oktay is a plastic surgeon with over 10 years of experience. He specializes in breast lift, breast reduction, Brazilian Butt Lift (BBL), rhinoplasty, and gynecomastia surgery. He completed his medical and specialty training at Mersin University. Dr. Oktay is accredited by the Turkish Medical Association and the Turkish Plastic, Reconstructive and Aesthetic Surgery Association.

He is known for high patient satisfaction and consistent, positive results. Dr. Oktay has published scientific articles and regularly attends professional conferences. His commitment to research and clinical care has earned him respect in the field of plastic surgery.

The doctor has extensive experience in hair transplantation, having worked in prestigious hospitals such as Medistate, Cagiıner, and Acibadem in Turkey. With 16 years in the field, the doctor established a successful hair clinic, providing services for over a decade.

The clinic is renowned for its unique use of oxygenated therapy, which the doctor pioneered, offering patients less pain, faster recovery, and minimal scarring. The doctor oversees a team that performs at least 500 hair transplantations monthly, ensuring high standards and natural-looking results.

Dr. Hasan Celik is a double board-certified plastic, reconstructive, and aesthetic surgeon. He passed EBOPRAS Part 1 in Brussels (Feb 2020) and Part 2 in Izmir (Aug 2021). He also passed the Turkish National Board Parts 1 and 2 in Izmir (Aug 2021). He is a member of ASPS, ISAPS, TPRECD, and ACELEMDER.

He earned the ISPRES/ICOPLAST Young Plastic Surgeon Award (3rd place) at the 88th ASPS Meeting in San Diego in 2019. The award recognized his axolotl/PRP burn study. He has four publications. One appeared in the Aesthetic Surgery Journal (2017).

Training: PRAS residency at Istanbul Medipol University (2012–2018). Practice: Estetik International (2021–2022). Artvin State Hospital, PRS (2018–2021).

2018 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Cardiology Specialist

2013 - 2018, Istanbul/Istanbul/Türkiye

SISLI AND ISTANBUL FLORENCE NIGHTINGALE HOSPITAL

Cardiology Specialist

2004 - 2013, Samsun/Samsun/Türkiye

ONDOKUZ MAYIS UNIVERSITY FACULTY OF MEDICINE

Cardiology Specialist

2004 - 2004, Samsun/Samsun/Türkiye

SAMSUN STATE HOSPITAL

Cardiology Specialist

1998 - 2004, Samsun/Samsun/Türkiye

ONDOKUZ MAYIS UNIVERSITY FACULTY OF MEDICINE

Cardiology Specialist

The doctor is an experienced neurologist with over 7 years of experience, having worked in both Turkey and Belgium. Specializing in memory disorders, functional neuroimaging, epilepsy, electroencephalography, headaches, and sleep disorders, the doctor has contributed numerous research papers to national and international scientific journals.

2019 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Neurosurgery Specialist

2015 - 2019, Istanbul/Istanbul/Türkiye

ACIBADEM UNIVERSITY ATAKENT HOSPITAL

Neurosurgery Specialist, Lecturer

2010 - 2015, Bolu/Bolu/Türkiye

ABANT İZZET BAYSAL UNIVERSITY FACULTY OF MEDICINE

Head of Neurosurgery Department

1992 - 2010, Istanbul/Istanbul/Türkiye

BEZMIALEM FOUNDATION GUREBA TRAINING AND RESEARCH HOSPITAL

Neurosurgery Clinic Chief

1987 - 1992, Istanbul/Istanbul/Türkiye

HAYDARPAŞA NUMBER TRAINING AND RESEARCH HOSPITAL

Assistant Chief of Neurosurgery

1987 - 1989, /Switzerland

ZURICH UNIVERSITY HOSPITAL (KANTONSSPITAL)

Neurosurgery Specialist

1984 - 1987, Istanbul/Istanbul/Türkiye

HAYDARPAŞA NUMBER TRAINING AND RESEARCH HOSPITAL

Chief Assistant

1983 - 1984, Ankara/Ankara/Türkiye

GÜLHANE MILITARY MEDICAL FACULTY

Neurosurgery Specialist

2021 - Present, Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist

2020 - 2021, Istanbul/Türkiye

İSTİNYE UNIVERSITY LIV HOSPITAL

Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist

2019 - 2020, Istanbul/Türkiye

GAYRETTEPE FLORENCE NIGHTINGALE HOSPITAL

Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist

2018 - 2019, Tokat/Türkiye

ISTANBUL TRAINING AND RESEARCH HOSPITAL

Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist

2013 - 2018, Istanbul/Türkiye

ISTANBUL EDUCATION AND RESEARCH HOSPITAL

Ear Nose Throat and Head and Neck Surgery Diseases Specialist Specialist Doctor

2011 - 2013, Tokat/Türkiye

TOKAT STATE HOSPITAL

Ear Nose Throat and Head and Neck Surgery Diseases Specialist Specialist Doctor

2005 - 2011, Istanbul/Türkiye

ISTANBUL EDUCATION AND RESEARCH HOSPITAL

Assistant Physician

The doctor is a specialist in Eye Diseases with extensive expertise in general eye examinations, retinal treatments, and various eye surgeries, including Cataract surgery with IOL replacement, Cataract surgery (one eye), Cataract Surgery with Multifocal Lens Implant, LASIK eye surgery, IOLs implantation, Transplantation of retina, ReLEx SMILE eye surgery, LASEK eye surgery, and Laser eye surgery.

Recognized for his groundbreaking work, the doctor performed the first bionic eye surgery in Turkey and received the TOD - Best Surgical Video Award in 2016. He is a member of the Turkish Ophthalmology Association, the American Academy of Ophthalmology, and the European Vitreoretinal Society.

EDUCATION Ankara Training and Research Hospital, Urology Specialization Training, 1 9 9 2-1 9 9 7, Ankara/Türkiye Uludağ University Faculty of Medicine, Medical Doctor Education, 1 9 8 2-1 9 8 8, Bursa/Türkiye

EXPERIENCE Taksim Training and Research Hospital, 2 0 0 9-2 0 1 6, Istanbul/Türkiye Bağcılar Training and Research Hospital, 2 0 0 7-2 0 0 9, Istanbul/Türkiye Ankara Training and Research Hospital, 2 0 0 0-2 0 0 7, Ankara/Türkiye Bergama State Hospital, 1 9 9 7-2 0 0 0, Izmir/Türkiye Ankara Training and Research Hospital, 1 9 9 2-1 9 9 7, Ankara/Türkiye

- Turkish Urology Association

- European Association of Urology

- Turkish Urology Association Northern Marmara

- American Urological Association

Dr. Cagatay Saim Tezel is a Professor of Thoracic Surgery at Memorial Şişli Hospital since 2025. From 2021 to 2025, he was a Professor at Haliç University Faculty of Medicine and at Liv Hospital Ulus. Earlier, he served at SB Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital as a specialist, associate professor, and educational supervisor.

He earned his MD from Ankara University. He completed his Thoracic Surgery specialization at SB Heybeliada Chest Diseases and Thoracic Surgery Hospital from 2000 to 2005. His international training includes a 6‑month observership at the Royal Brompton Hospital and work in the Leicester University clinics. He also attended the STS 41st Annual Meeting and the Ankara University Esophageal Surgery Program. He was part of the Süreyyapaşa Thoracic Surgery Transplant Team. He was an internship lecturer at Yeditepe University from 2013 to 2020. He served on the editorial board of the Heybeliada Medical Bulletin in 2001.

He is a member of the Turkish Thoracic Surgery Society, the European Society of Thoracic Surgeons, the Turkish Thoracic Society, and the European Respiratory Society. He advised a thesis that won third place in the Istanbul Medical Chamber Thesis Competition.