Page 5 - Les Meilleurs Médecins au Monde

The doctor graduated from GATA Medical School and completed specialty training in internal medicine and nephrology at GATA Haydarpaşa Training Hospital in Istanbul. Since 2010, the doctor has been serving as an internal medicine specialist and nephrologist at Anadolu Medical Center. The doctor is a member of several prestigious organizations, including the Turkish Nephrology Society, the European Renal Association-European Dialysis Transplant Association, and the International Society of Nephrology.

The doctor graduated from Istanbul University, Istanbul Medicine Faculty in 2007 and completed a specialization in surgery at Sisli Etfal Education and Research Hospital in 2013. Further advancing their expertise, they joined the General Surgery Clinic at Istanbul Okan University in 2020.

With extensive experience in various medical institutions, the doctor has worked at Sisli Hamidiye Etfal Training and Research Hospital, Siverek State Hospital, and Anadolu Medical Center. They are a member of several prestigious organizations, including the European Society of Coloproctology and the Turkish Surgical Society.

The doctor holds numerous certifications, such as the Turkish Surgical Association Qualification Certificate and has completed advanced courses in endoscopy, bariatric surgery, and laser techniques for hemorrhoidal diseases.

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.

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.

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 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.

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

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.

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).

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.

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.

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

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. Mert Tanal is a General Surgery Specialist at Memorial Şişli Hospital (2024–present). He previously worked at Acıbadem Maslak Hospital (2023–2024) and Tekirdağ Dr. İsmail Fehmi Cumalıoğlu City Hospital (2021–2023). He completed his general surgery residency at the University of Health Sciences Şişli Hamidiye Etfal (2016–2021). He earned his M.D. from Istanbul University Cerrahpaşa (2009–2015).

He holds the European Board of Surgery Qualification in General Surgery (2022). He took the Turkish Surgical Society Proficiency Exam (2021). He has published 28 articles in international indexed journals and 10 in national peer-reviewed journals. He has 46 conference presentations and posters.

He is a member of the Turkish Medical Association, Turkish Surgical Society, Turkish Society of Colon and Rectal Surgery, National Trauma and Emergency Surgery Association, ESSO, EAES, and the American College of Surgeons. His training includes IRCAD Robotic Surgery in Strasbourg (2022) and SENATURK Breast Surgery (2020–2021).

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.

Harun Kaya is a hair transplant specialist. He completed the Anesthesia Technician Program at Istanbul Okan University (2018–2020).

Experience: Hair Transplant Assistant at Este Future Clinic (2020–2021). Hair Transplant Technician at Rizza Hair Clinic in Kosovo (2021–2022). Hair Transplant Specialist at Lokman Hekim Medical Center in Ankara (2022–2023). Hair Transplant Specialist at Emsey Hospital (2023–2024). Hair Transplant Specialist at Lokman Hekim Istanbul Hospital (2024–2026). He speaks Turkish.