Dr. Mehmet Mehdi Deniz is an Associate Professor and general and bariatric surgeon at Vital Hospital. He has over 15 years of surgical experience, starting his career in 2008. His main areas of expertise are bariatric surgery, hernia repair, gastrointestinal disorders, and minimally invasive procedures. He performs Roux-en-Y gastric bypass and advanced laparoscopic surgeries.

Dr. Deniz is also an active medical researcher. He has co-authored more than nine international peer-reviewed publications, which have received over 180 citations. He holds the Turkish Surgical Association’s Competency Certificate (2011) and is a member of the Turkish Surgical Association, BMCD, and Turkish Medical Association.

As an educator, Dr. Deniz has taught key courses to more than 250 medical students. He has also attended over ten advanced surgical workshops. This shows his dedication to ongoing learning and surgical innovation.

Education and Expertise

Istanbul University, Istanbul Faculty of Medicine

Istanbul University, Cerrahpaşa Faculty of Medicine

Northwestern University, Transplantation Center

Dr. Lütfi Kırdar Kartal Training and Research Hospital

Bezmialem Faculty of Medicine, Department of General Surgery

Experience

1992 to 1997 – Research Assistant at Istanbul University, Cerrahpaşa Faculty of Medicine, Department of General Surgery

1998 to 2002 – Fellow at Northwestern University, Transplantation Unit

2003 to 2008 – Chief Assistant at Kartal Training and Research Hospital

2008 to 2011 – Associate Professor at Kartal Training and Research Hospital

2011 to 2013 – Associate Professor at Bezmialem University Faculty of Medicine, Department of General Surgery

2013 to 2018 – Associate Professor at Kartal Training and Research Hospital


Professional Memberships

-Deutsche Gesellschaft Für Chirurgie

-American Society for Transplantation

-Breast Surgery Association

-Trauma Association

-Hepatobiliary Surgery Association

-Colorectal Surgery Association

Education and Specialization

• Faculty of Medicine, Hacettepe University
• 1999 - Akdeniz University, Faculty of Internal Medicine, Internal Medicine Specialization Training
• Internal Medicine Specialization Training in the USA, Akdeniz University (2013 - 2014)
• Internal Medicine Specialization Training in the USA (2013 - 2014) - Medical Oncology Department
• Akdeniz University, Faculty of Medicine, Department of Medical Oncology (Received Associate Professorship title)

Work Experience

• 2009 - Kayseri Training and Research Hospital, Hospital
• Acıbadem Kayseri
• 2017 - 2018 - Lara Private Anadolu Hospital
• 2018 - Medical Park Antalya Hospital Complex

Expertise

• Diagnosis of organ tumors
• Chemotherapy in cancer treatment
• Targeted cancer therapies
• Immunotherapy in cancer treatment
• Next-generation genetic research in cancer treatment
• Complementary medicine in cancer treatment
• Medical oncology

The doctor is a seasoned general surgeon with extensive experience in various prestigious institutions. The doctor has been affiliated with the Istanbul Medipol University General Surgery Clinic and has contributed to the Turkish Colon and Rectum Surgery Society and the Turkish Ostomy Surgery Society. The doctor also has a background in the Malatya Gastrointestinal Surgery Society.

Education includes a medical degree from Karadeniz Technical University, Faculty of Medicine, and general surgery training at Istanbul Kartal Dr. Lütfi Kirdar Training and Research Hospital.

Education and Specialization

• 1983 – 1989: Ankara University Faculty of Medicine – Medical Education
• 1990 – 1994: Ankara Numune Training and Research Hospital – General Surgery – Specialization
• 1995 – 2005: Ankara Abdurrahman Yurtaslan Oncology Training and Research Hospital – Specialization
• 2005: Associate Professorship, Ankara Numune Training and Research Hospital
• 2019: Professorship, İstinye University Faculty of Medicine, Department of General Surgery

Experience

• 1989 - 1990: Ardanuç Central Health Center, Artvin – General Practitioner
• 1990 - 1995: Ankara Numune Training and Research Hospital, 2nd Surgery Clinic – Assistant
• 1995 - 1998: Ankara Oncology Training and Research Hospital – Specialist
• 1995 - 1996: 600-Bed Air Force Hospital, Güzelyalı, İzmir – Medical Second Lieutenant
• 1998 - 2005: Ankara Numune Training and Research Hospital, 3rd Surgery Clinic – Specialist
• Sep - Dec 2002: University of Pittsburgh Medical Center, Presbyterian University Hospital, Pittsburgh, PA, USA – Division of Hepatobiliary and Liver Transplantation
• 2002 - 2005: Ankara Numune Training and Research Hospital, 3rd Surgery Clinic – Specialist
• 2005: Associate Professor, Ankara Numune Training and Research Hospital, 3rd Surgery Clinic
• 2005 - 2006: Deputy Chief, Ankara Training and Research Hospital, 4th Surgery Clinic
• 2006 - 2008: Deputy Chief, Ankara Numune Training and Research Hospital, 7th Surgery Clinic
• 2009 - 2012: Chief of Clinic, Kocaeli Derince Training and Research Hospital, General Surgery Clinic
• 2012 - 2019: Chief of Clinic, Antalya Training and Research Hospital, General Surgery Clinic

International Experience

• 2002: University of Pittsburgh Medical Center, Presbyterian University Hospital, Pittsburgh, PA, USA – Division of Hepatobiliary and Liver Transplantation
  • Project Supervisor: De Novo Breast Cancer in Patients with Liver Transplantation
• 2005: Laparoscopic Gastric Band Training, Austria
• 2010: Laparoscopic Lower Gastrointestinal Surgery Training, Cushieri Skill Center, Scotland

The doctor graduated from Cerrahpaşa School of Medicine, Istanbul University, with medical education in English. She completed her residency in the General Surgery Department at Marmara University. Her clinical focus includes the treatment of breast pain, hemorrhoids, anal fissures, pilonidal sinus, and lipomas. She employs advanced techniques such as laser and Longo hemorrhoid surgeries, as well as local laparoscopic day surgery for pilonidal sinus. The doctor has contributed to local and international medical journals and participated in numerous congresses.

Dr. Sema Karakas specializes in gynecologic oncology surgery. She also performs minimally invasive gynecologic surgery, including laparoscopy and V-NOTES (scarless) techniques.

She offers V-NOTES hysterectomy and cyst removal. She performs surgery for uterine cancer and tubal ligation. She provides a full range of laparoscopic gynecologic procedures. She treats urinary incontinence with medical, laser, or surgical options and pelvic floor physiotherapy. She manages HPV with diagnosis, treatment, and follow-up. She performs colposcopy, LEEP, and conization. She provides endometriosis care and surgery. She treats polyps and uterine septum with hysteroscopy. She offers perimenopausal and menopausal care and bioidentical hormone therapy.

The doctor completed medical education at Karadeniz Technical University and specialized at the University of Health Sciences, Dr. Lütfi Kırdar Kartal Training and Research Hospital. With a focus on spine surgery, trauma surgery, and arthroplasty, the doctor has a particular interest in pelvis-acetabulum surgery. The doctor has performed numerous successful operations in orthopedics and traumatology. In 2014, the doctor was a finalist in the Tubitak XI Technology Awards. Currently, the doctor serves patients at Hisar Hospital Intercontinental Orthopedics and Traumatology Department.

The doctor has been a general surgeon at Anadolu Medical Center since 2006, specializing in pancreatic cancer. He completed his medical education at Fırat University Medical Faculty and further specialized in general surgery at Dr. Lütfi Kırdar KEAH in Istanbul in 2003. With experience in various health centers and hospitals, he has also served as an assistant professor and assistant coordinator at Maltepe University Medical School. The doctor has participated in advanced courses, including the Cytoreductive Surgery & Hipec Course and the da Vinci Robotic Surgery Training Program.

The doctor is a specialist in Thoracic and Robotic Surgery, recognized as a top lung cancer expert. Since 2007, the doctor has been serving as a thoracic surgeon at Anadolu Medical Center. The doctor's education includes a medical degree from Karadeniz University Medical School and specialty education in Thoracic Surgery from Dicle University Medical Faculty. Further training was completed at London Royal Brompton Hospital and New York Memorial Sloan-Kettering Cancer Center. The doctor is a member of the Turkish Thoracic Surgery Society, European Society of Thoracic Surgeons, and Thorax Society.

Prof. Dr. Sezer Sağlam is a medical oncologist at Gayrettepe Florence Nightingale Hospital. He specializes in gastrointestinal and breast cancers. He has contributed to cancer care through research, especially with his study on the best timing for surgery after neoadjuvant therapy in rectal cancer. This work has influenced global treatment protocols.

Dr. Sağlam has led clinical trials in targeted therapies and precision medicine. His research on liver-transplanted patients with hepatocellular carcinoma was nominated for the 2024 International Best Researcher Award. He is a member of ASCO, ESMO, and ENET. Dr. Sağlam provides personalized and evidence-based oncology care.

Personal Information:

• Born in 1967.
• Completed primary education in Istanbul.
• Graduated from Pertevniyal High School in 1984.

Education & Training:

• Enrolled in Marmara University Faculty of Medicine in 1984, completing medical education in English and graduating in 1991.
• Started General Surgery residency at Istanbul University Faculty of Medicine in 1991.
• Became a General Surgery Specialist in 1996 with a thesis on "The Effects of Inhibiting the Nitric Oxide Pathway in Radiation Enteritis."
•  

Professional Experience:

• 1996: Joined Şişli Florence Nightingale Hospital as a General Surgery staff doctor.
• 2002-2004: Served as a Lecturer and Acting Head of the General Surgery Department at Kadir Has University Faculty of Medicine.
• 2013: Transferred to Istanbul Florence Nightingale Hospital as a General Surgery specialist, where he continues to work.
•  

Medical Expertise & Achievements:

• Performed the first general surgery operation in Turkey using the Da Vinci robotic system.
• Specializes in advanced laparoscopic and robotic surgery and continues to perform such procedures.

Positions Held:

• 1991-1996: Research Assistant – Istanbul University, Faculty of Medicine, Department of General Surgery.
• 1996-2012: General Surgery Specialist – Şişli Florence Nightingale Hospital.
• 2002-2004: Lecturer – Kadir Has University, Faculty of Medicine, Department of General Surgery.
• 2003-2004: Acting Head – Kadir Has University, Faculty of Medicine, Department of General Surgery.
• 2013-Present: General Surgery Specialist – Istanbul Florence Nightingale Hospital.

Interests 
Robotic surgery,
Advanced laparoscopic surgery(Colorectal and GERD Surgery included),
Laparoscopic hernia surgery,
Breast and thyroid surgery,
Gastrointestinal surgery,
Anal region diseases,
Hepatobiliary surgery

Memberships: 

Turkish Medical Association

Turkish Surgical Society

American Society of Colon and Rectal Surgery

Dr. Neslihan Demirci is a hair transplant specialist. She has practiced since 2014 and has led more than 2,500 hair transplant procedures. Her work focuses on precision, safety, and natural results.

She heads the Hair Transplant Team. In the operating room, she sets clear quality standards and plans each case individually. She has experience with patients from Canada, the United States, and Europe.

Her approach combines careful planning, an eye for aesthetics, patient-centered care, and strict safety and hygiene standards.

Education:

Teaching course on “Lymphatic mapping and sentinel node”

June 1998, MDA Cancer Center, Houston, Texas, USA

General Surgery

Feb. 1993 – Dec. 1996, Şişli Etfal Hospital, Istanbul, Turkey

General Surgery

May 1990 – Jan. 1993, Lille University Hospital, Lille, France 

M.D.

1983 – 1990, Cerrahpasa School of Medicine, Istanbul, Turkey

Experience

Attending General Surgeon, Jan. 1998 – present 

F.N. Metropolitan Hospital, Istanbul, Turkey

American Cancer Center, Breast Surgery

Attending General Surgeon, 1996 – present 

Medmar Diagnostic Center, Istanbul, Turkey

Diagnosis and monitoring with sophisticated techniques 

General Surgeon, 1996 – 1998

Guzelbahce Medical Center and Yeditepe Hospital, Istanbul, Turkey

Specializing in breast and thyroid surgery

2017 - 2018

University of Health Sciences, Tepecik Health Practice Research Hospital

2015 - 2018

University of Health Sciences, Tepecik Health Practice Research Hospital

2013 - 2018

University of Health Sciences, Tepecik Health Practice Research Hospital

2013

Articles Published in 28 International Refereed Journals

Papers and Posters Presented at 17 International Scientific Meetings

Articles Published in 55 National Refereed Journals

56 Papers and Posters Presented at National Scientific Meetings

14 Referenced Publications in National and International Refereed Journals

35 Domestic Panel Conference Moderators Live Surgery

10 Domestic Courses Attended

8 International Conferences Attended

32 Meetings with Domestic Participants

6 International Meetings