Oya Ercan
41
years of experience
Oya Ercan
- Specialization: Endocrinologist
- 41 years of experience
- Speaks:English
- Online consultations: available
- Workplace: Turkey, Istanbul, Memorial Şişli Hospital
- Founder and Head of the Adolescent Science Branch at Cerrahpaşa Medical Faculty.
Dr. Oya Ercan is a pediatric endocrinologist at Memorial Şişli Hospital in Istanbul. She founded the Adolescent Science Branch at Cerrahpaşa Medical Faculty. Dr. Ercan specializes in hormonal disorders in children and teenagers. She previously served as visiting Chief Resident at Middlesex Hospital in London.
- Current Head of the Department of Pediatric Endocrinology at Cerrahpaşa Medical Faculty.
- Treats a wide variety of pediatric endocrine and cellular conditions.
- Practices at JCI-accredited Memorial Şişli Hospital, a leading center for specialized care.
- Holds nearly four decades of clinical experience in Turkish and British medical systems.
Online consultation with Oya Ercan
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Price on request
Excellent score
20 patient verified reviews
1 star
5%
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5 stars
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Patient reviews
About clinic Memorial Şişli Hospital
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Learn more about reviews.1-5 of 20 reviews
Anonymous • Basalioma
Ghana
Jun 14, 2026
The surgeon was excellent
What surprised me most about my basalioma treatment wasn't the procedure itself, but the detailed skin examination I received. The surgeon was excellent. He made sure all removal options were discussed clearly, which was reassuring since I already had my diagnosis before arriving. Right now, the treated area is healing very well. While the medical care was superb and the clinic facilities are great, the administrative staff seemed a bit disorganized, which was the only downside. Despite that, based on the surgeon’s work, it’s a place I would suggest to others.
My Bookimed coordinator was highly skilled, had the passion and patience for her work and that translated to the numerous array of options provided to me to choose from based on my budget during the entire process.She interacted with me 24/7 just for us to have solution within my schedule. All information (proforma, visa assistance, travel guidance and estimated personal expenses) for the entire treatment were on point and I encourage all manner of persons seeking medical treatment abroad to choose Bookimed as their medical tourism partner.
1. Interpreter only come when the patient calls for his services and that is only during the day. If the interpreter can also support beyond the interactions with the specialist.
2. Airport and Internal movement are left to the patient to handle which can sometimes be a major challenge for some category of patients and given the language barrier.
3. Hospital discharges are very strict even if you the patient feels he/she need additional day(s) to be fit for a return to the hotel to continue the recovery.
Anonymous • Breast Implant Revision
United Kingdom
Jun 8, 2026
The surgeon dr ozturk was fantastic, friendly, knowledgeable and inspired confidence immediately
My biggest worry was what recovery would feel like this time, especially after having my old implants for well over ten years. It turned out to be about the same as my first surgery. The surgeon dr ozturk was fantastic, friendly, knowledgable and inspired confidence immediately performing a position adjustment and implant replacement, though it's still hard to compare the final result as surgery was only 5 days ago. The hospital facility was clean and private room was great. My main issue was with the general staff support, which could have been more attentive, having said that whenever I called they attended immediately and were kind. Despite that, the medical care itself was solid, and I'm satisfied with the outcome.
Translator amazing as was Dr Ozturk, friendly, professional, knowledgeable. Co-ordination of transport, Appointments etc smooth
Hospital staff could’ve been more proactive eg not leaving things out of reach, ensuring drinks etc on hand, although having said that they immediately attended any call bells and were kind, I just didn’t want to trouble them more than I needed to.
Antonio Morales • Hair transplant
France
Jul 31, 2025
Whether it's the doctors, nurses or reception staff, many other hospitals should take inspiration from the Turkish hospital model
The quality of the hospital service is second to none, with well-organised, highly competent services that are always available to patients.
Whether it's the doctors, nurses or reception staff, many other hospitals should take inspiration from the Turkish hospital model.
The hospitals are like luxury hotels, you feel good, you are looked after and followed throughout your stay.
Finally, the money I spent there was really justified.
Thank you to everyone who looked after me during my 14-day stay.
Of course I recommend Istanbul Memorial Hospital.
Antonio. M
Anonymous • Immunotherapy with Keytruda (Pembolizumab)
Netherlands
May 31, 2026
The doctor and all the staff have been very attentive and professional, which gives me confidence that I made the right choice of clinic and treatment process
My main concern before starting treatment was how my body would react to the drug. I’m undergoing a course of Keytruda immunotherapy for kidney cancer, receiving an infusion every three weeks. Yes, I have experienced some side effects. These are mainly digestive issues, and I feel a little more tired. Of course, I am still concerned that these might get worse over time. But I must say that the doctor and all the staff have been very attentive and professional, which gives me confidence that I made the right choice of clinic and treatment process.
Donna Barber • Neck lift
Canada
Nov 6, 2025
I’m so very glad I had the best doctor and best care
My arrival at Istanbul airport was smooth and efficient. I was met and transported to my hotel. My hotel was lovely.
Transportation from hotel to hospitals on time and efficient.
I met my advocate at international patient area, she had everything under control, all tests lined up and doctor appointments were fabulous. My advocate translated to my language at every appointment.
I’m very happy with the service and I felt very “looked after”.
My outcome is excellent and I’m so very glad I had the best doctor and best care.
About Bookimed service
Bookimed lovely to deal with. Reactive to my questions and concerns. Contacted me after surgery to inquire how I was doing.
Very efficient with transfers.
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Qualifications
Oya Ercan is a pediatric endocrinologist who founded the Adolescent Science Branch at Cerrahpaşa Medical Faculty. She is the Head of the Department of Pediatric Endocrinology at the same institution. Dr. Ercan also treats patients at Memorial Şişli Hospital and Memorial Ataşehir Hospital in Istanbul.
Clinical Expertise and Leadership
Dr. Ercan specializes in pediatric and cellular endocrinology. She treats hormonal disorders in children and adolescents. Since 1996, she has led the Adolescent Science Branch, a department she established. She also leads the broader pediatric endocrinology department at Cerrahpaşa Medical Faculty.
Work Experience
- 2006 – Present: Pediatric Endocrinology Specialist at Memorial Şişli Hospital, Turkey
- 2006 – Present: Pediatric Endocrinology Specialist at Memorial Ataşehir Hospital, Turkey
- 2001 – Present: Head of the Department of Pediatric Endocrinology at Cerrahpaşa Medical Faculty
- 1996 – Present: Founder and Head of Adolescent Science Branch at Cerrahpaşa Medical Faculty
- 1993 – 2001: Member of the Department of Pediatric Endocrinology at Cerrahpaşa Medical Faculty
- 1992 – 1993: Visiting Chief Resident at University of London Middlesex Hospital, England
- 1989 – 1992: Chief Assistant of the Department of Pediatric Endocrinology at Cerrahpaşa Medical Faculty
- 1987 – 1989: Child Health and Diseases Specialist at the Ministry of Health, Turkey
- 1985 – 1987: Child Health and Diseases Specialist at Sereflikochisar State Hospital, Turkey
Education and International Training
The doctor completed her medical training in Turkey. She pursued international experience in London between 1992 and 1993. During this time, she studied cellular endocrinology at the University of London Middlesex Hospital. This role provided training in pediatric hormone systems.
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