Ayla Guven
32
years of experience
4.5
Rating
Ayla Guven
- Specialization: Endocrinologist
- 32 years of experience
- Speaks:Turkish
- Workplace: Turkey, Istanbul, Hisar Hospital Intercontinental
- Led the establishment of the first subspecialty training in Pediatric Endocrinology at Göztepe Training and Research Hospital, training five specialists.
Patient reviews
Good
198 patient verified reviews
1 star
5%
2 stars
0%
3 stars
5%
4 stars
5%
5 stars
85%
Rating breakdown
Doctor
4.7/5
Staff
4.6/5
Facilities
4.8/5
Language assistance
4.6/5
Support
4.7/5
Your trust is our top concern
We value your trust above all, so clinics can't pay to alter or remove reviews.
Learn more about reviews.Shabnam • Hysteroscopic polypectomy
Tajikistan
Nov 6, 2025
Thank you so much to the whole team for their clear, professional and heartfelt work!
I would like to express my sincere gratitude to Hisar Hospital Intercontinental in Istanbul for the high professionalism, attentiveness and care shown at every stage of my treatment.
I underwent hysteroscopic removal of several endometrial polyps, including one large one measuring 3 cm. Everything went perfectly - from the initial consultation to the surgery and post-operative care.
Special thanks to my doctor - Op. Dr Berna Buse Kobal. She inspired confidence from the very beginning, explained everything calmly and clearly, acted very carefully and confidently. After the operation I felt great, without pain or discomfort. The nurses and all the staff of the clinic were very attentive and helpful. The atmosphere in the hospital is clean, modern, comfortable and absolutely safe.
I would also like to thank Julia, a Bookimed employee, who helped me with counselling and organising the trip. We made the decision literally at the last moment: we were informed from Dushanbe in the evening, flew out at night, and already in the morning I was in the clinic. Everything was organised perfectly - meeting, hospitalisation, surgery on the same day, and in the evening I was already relaxing in the hotel and feeling great.
Thank you so much to the whole team for their clear, professional and heartfelt work! 💐
I confidently recommend Hisar Hospital Intercontinental and Bookimed to all women who are looking for quality, fast and safe treatment abroad.
Promptness, value for money. Approach.
There's no such thing
About Bookimed service
Julia from bookimed and I were looking at several options. We voiced our budget and special requirements. After studying our wishes, she suggested this clinic. The next morning we were already at the clinic after the appointment had been decided promptly
Виктория • Revision rhinoplasty
United States of America
Nov 2, 2025
I am very happy with the result
I would like to thank the clinic for its good organisation and professional attitude. Everything was well thought out for my arrival - I was met and provided with a transfer.
The hospital is large and modern, you can feel the high level of professionalism. The nursing staff is attentive and responsive.
Special thanks to Dr Hazar - a wonderful doctor, everything was done accurately and with great precision.
I had an endoscopic lift and blepharoplasty with small, neat stitches - I am very happy with the result.
Thank you to the whole team for their work and care for patients.
About Bookimed service
I would like to thank Booking Media team for their attentive and professional attitude. They took a long and careful time to find the right doctor for me, taking into account all the details and my wishes.
I always turn to Booking Media when planning medical procedures, and every time I am satisfied with the result.
The selection of clinics and specialists is always accurate, the organisation is at a high level, and the support is responsive and human.
Thank you for your responsibility and assistance at all stages!
Jeffrey Tai • Gastroscopy
United States of America
Nov 1, 2025
Her coordination efforts were astounding as she was able to contact the hospital and coordinate all activities with short notice
Bookimed was a tremendous help to me. Dr Hanna was an amazing coordinator. She helped answer all my questions, looked for different hospitals and pricing, and always responded to me the same day. Her coordination efforts were astounding as she was able to contact the hospital and coordinate all activities with short notice. I truly appreciated her help and support throughout the whole process. I would definitely recommend Bookimed for anyone seeking affordable healthcare and quality service. Very happy with my results.
Dr Hanna’s support and coordination. It was truly an effortless experience knowing she was there to help meet all my needs. Her support gave me the comfort in using health services outside the US.
Nothing major. Took a little time to get my final report (about a week). The doctors assistant was apparently sick but I was happy regardless since the results of the colonoscopy and endoscopy were given immediately after the procedure.
About Bookimed service
Bookimed was the ultimate reason I chose to seek medical services outside the US. They made the experience well coordinated and trouble free. Dr Hanna was super responsive and willing to help in any way possible. I was able to get a response the same day (often times within a few seconds of asking). I was very happy with Bookimed and recommend it to anyone looking for healthcare abroad. Kudos to the whole team for making it a great experience.
Cass • Neck lift
United Kingdom
Nov 6, 2025
I had excellent communication from Bookimed with regards to information on how to find out more about having surgery abroad. My medical co-ordinator was always just a quick text message away and answered any and all of my queries quickly and professionally. I settled on a particular surgeon, hospital, hotel and price. I paid the required deposit and flew out to Istanbul on the agreed date. As promised, I was met at the airport and taken by car to the hotel, signed in and shown to my room. The next day as arranged, I was picked up from the hotel and taken to Hisar Hospital Intercontinental for the pre-op tests and met with my surgeon to discuss and go over everything. The interpreter was always on hand to help with any language problems. The surgeon was very nice, professional and informative. About 30 mins after paying the outstanding balance I was told there seemed to be a problem regarding the cost of the procedure I was having. The upshot was, they expected me to pay 1500 euro on top of the agreed sum of 5000 euro which I'd already paid. Even though I provided copies of the text messages which outlined what was included in the procedure. I was shown into an office where it was made clear that if I didn't pay this extra sum, there would be no operation. I managed to get the sum reduced to 500 euro, but felt I had been forced/tricked/mugged into handing over more money than was agreed with Bookimed. The hospital blamed Bookimed, saying they should have been more explicit in their description of what's included in that particular procedure, even though one of the messages from the surgeon outlined the exact details of the procedure! I am disgusted at how I was treated and expect something to be done about it. I do want to point out that my treatment from the hospital nursing staff and my surgeon was wonderful, but be it the fault of the hospital admin department or Bookimed, this type of thing like this needs to be rectified. I won't ever use or recommend either establishment again.
Being able to see my surgeon when needed.
Being fleeced out of more money than what was agreed!
About Bookimed service
I had excellent communication from Bookimed with regards to information on how to find out more about having surgery abroad. My medical co-ordinator was always just a quick text message away and answered any and all of my queries quickly and professionally. I settled on a particular surgeon, hospital, hotel and price. I paid the required deposit and flew out to Istanbul on the agreed date. As promised, I was met at the airport and taken by car to the hotel, signed in and shown to my room. The next day as arranged, I was picked up from the hotel and taken to Hisar Hospital Intercontinental for the pre-op tests and met with my surgeon to discuss and go over everything. The interpreter was always on hand to help with any language problems. The surgeon was very nice, professional and informative. About 30 mins after paying the outstanding balance I was told there seemed to be a problem regarding the cost of the procedure I was having. The upshot was, they expected me to pay 1500 euro on top of the agreed sum of 5000 euro which I'd already paid. Even though I provided copies of the text messages which outlined what was included in the procedure. I was shown into an office where it was made clear that if I didn't pay this extra sum, there would be no operation. I managed to get the sum reduced to 500 euro, but felt I had been forced/tricked/mugged into handing over more money than was agreed with Bookimed. The hospital blamed Bookimed, saying they should have been more explicit in their description of what's included in that particular procedure, even though one of the messages from the surgeon outlined the exact details of the procedure! I am disgusted at how I was treated and expect something to be done about it. I do want to point out that my treatment from the hospital nursing staff and my surgeon was wonderful, but be it the fault of the hospital admin department or Bookimed, this type of thing like this needs to be rectified. I won't ever use or recommend either establishment again.
Anonymous • Myomectomy (removal of uterine fibroids)
Uzbekistan
Oct 23, 2025
everything was very good
A very big thank you to bookimed.com operator Yaroslava for helping me find the right clinic for my mum, she is very responsive and always ready to help🙏. About the clinic Dr Suleiman endocrinologist is an experienced doctor in his field everything was very good, customer service at a high level everyone thank you very much 🙏
I liked most of all how bookimed.com operators work, especially Jaroslava, and the clinic is also very good, the interpreter Nargiza also thank you very much for your help.
All very good 👌🏻
About Bookimed service
Thank you so much to Yaroslava who accompanied us on the bookimed.com telegram bot, she always tried to help us and was very responsive, now I always want to turn to her if I need to, thank you all so much 😊
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Qualifications
Prof. Dr. Ayla Güven graduated from Gazi University Faculty of Medicine in 1986 and completed her mandatory service at Ege University Chest Diseases Bornova Tuberculosis Dispensary. Following that, she started her specialization training in the Department of Child Health and Diseases at Hacettepe University Faculty of Medicine and became a specialist in 1993. After working as a specialist physician, she began her subspecialty training in Pediatric Endocrinology at Gazi University Faculty of Medicine in September 2000 and became a Pediatric Endocrinology specialist in December 2002. In April 2003, she started working as an assistant professor at Ondokuz Mayıs University Faculty of Medicine and worked in the Pediatric Endocrinology and Diabetes Department at the Children’s Hospital of Pittsburgh, USA, between May and November 2003. After returning to Turkey, she continued to work at Ondokuz Mayıs University Faculty of Medicine. This clinic was the first to offer Pediatric Endocrinology subspecialty training in the country. During her time there, one person became a Pediatric Endocrinology specialist. On March 13, 2006, she successfully passed the exam and received the title of Associate Professor. Since December 2006, she has been working at Göztepe Training and Research Hospital. In this hospital, she was appointed as the head of the Pediatric Endocrinology clinic in November 2008 and started providing Pediatric Endocrinology subspecialty training for the first time in the hospital in March 2009. Between 2009 and 2017, she trained five Pediatric Endocrinology specialists. Most of the physicians she currently provides subspecialty training to have gained academic titles as professors and associate professors. After working as a training instructor at Health Sciences University Zeynep Kamil Hospital for Children and Women from 2017 to 2021, she retired at her request from public service. Between 2021 and 2024, she worked as a Pediatric Endocrinology specialist at Başkent University Faculty of Medicine, Department of Child Health and Diseases, at Istanbul Hospital.
MEDICAL INTERESTS
- Menstrual disorders and increased hair growth in girls, polycystic ovary syndrome
- Adrenal diseases
- Sexual development disorders
- Type 2 diabetes
- Thyroid diseases
- Growth disorders: short stature and tall stature
- Puberty disorders: precocious puberty-delayed puberty
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