{"schema_version":"bookimed.page-context.v1","id":"surgeon-bookimed-8358","url":"https://hub.bookimed.com/bariatric-surgery/surgeon-bookimed-8358/","json_url":"https://hub.bookimed.com/bariatric-surgery/surgeon-bookimed-8358/#page-context","content_revision":"bariatric-registry-v1","date_modified":"2026-10-21","language":"en","kind":"doctor-profile","title":"Hanifi Onalan: bariatric surgeon profile","summary":"Hanifi Onalan is a surgical oncologist at Atlas University Hospital in Istanbul, Turkey. The bariatric procedures associated with Hanifi Onalan include sleeve gastrectomy. To ask about bariatric care with Hanifi Onalan, use the [Bookimed inquiry page for Hanifi Onalan](https://us-uk.bookimed.com/doctor/hanifi-onalan/).","research_credit":{"name":"Yevhenii Kozlov","role":"Co-Founder of Bookimed","url":"https://us-uk.bookimed.com/ceo/kozlov/","contribution":"Research project led","assistance":"For me, helping patients find the best medical care is a personal responsibility. This guide is built by a process we designed to do the hard part — reading the research, comparing surgeons and clinics, checking real offers — and to make the result simple and clear for every patient. AI tools do much of the work; every fact links to its source."},"editorial_scope":"Migration of supplied source-linked content. No new clinical review is claimed.","research_method":"How this guide is researched and compared Research project led by Yevhenii Kozlov .","sections":[{"id":"narrative-orientation","title":"About Hanifi Onalan","text":"About Hanifi Onalan Hanifi Onalan is a surgical oncologist at Atlas University Hospital in Istanbul, Turkey. The bariatric procedures associated with Hanifi Onalan include sleeve gastrectomy. To ask about bariatric care with Hanifi Onalan, use the Bookimed inquiry page for Hanifi Onalan . Sources (1) Public package source","links":[{"label":"Bookimed inquiry page for Hanifi Onalan","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"},{"label":"Public package source","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"}]},{"id":"profile-data-clinic","title":"Clinic and location","text":"Clinic and location Hanifi Onalan · Atlas University Hospital · Istanbul, Turkey Bookimed doctor profile Sources (1) Hanifi Onalan","links":[{"label":"","url":"https://hub.bookimed.com/bariatric-surgery/surgeon-bookimed-8358/"},{"label":"Hanifi Onalan","url":"https://hub.bookimed.com/bariatric-surgery/surgeon-bookimed-8358/"},{"label":"","url":"https://hub.bookimed.com/bariatric-surgery/clinic-5926/"},{"label":"Atlas University Hospital","url":"https://hub.bookimed.com/bariatric-surgery/clinic-5926/"},{"label":"Bookimed doctor profile","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"},{"label":"Hanifi Onalan","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"}]},{"id":"profile-data-operations","title":"Operations and published practice","text":"Operations and published practice Sleeve","links":[]},{"id":"profile-data-experience","title":"Reported experience","text":"Reported experience 27 years of experience. Biography source Sources (1) Hanifi Onalan","links":[{"label":"Biography source","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"},{"label":"Hanifi Onalan","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"}]},{"id":"profile-data-packages","title":"Public packages and price inquiry","text":"Public packages and price inquiry Sleeve gastrectomy — provider package USD 3300 Bookimed offer Oct 2026 Package details Bookimed offer Premium Gastric Sleeve Surgery by Surgeon with 1,100+ Procedures — VIP Transfer Package description Sleeve gastrectomy surgeries are performed on average 4 or 5 times a day by our experienced doctors in our hospital on patients coming from various parts of the world. Dr. Hanifi Onalan has operated on hundreds of cases throughout his career. Our team will be with you to respond to your every request during the post-operative period Sources (1) Public package source","links":[{"label":"Bookimed offer","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"},{"label":"Bookimed offer","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"},{"label":"Public package source","url":"https://us-uk.bookimed.com/doctor/hanifi-onalan/"}]},{"id":"profile-data-booking","title":"Ask about treatment","text":"Ask about treatment Ask Bookimed about Hanifi Onalan","links":[]},{"id":"profile-data-request-form","title":"Request a treatment proposal","text":"Request a treatment proposal What would you like help with? Answer a few questions on Bookimed, then add your contact details to request help. Privacy policy Open the Bookimed request form","links":[{"label":"Privacy policy","url":"https://us-uk.bookimed.com/page/privacy-policy/"}]}],"introduction":"Bariatric surgery guide / Hanifi Onalan Surgeon profile Hanifi Onalan: bariatric surgeon profile Hanifi Onalan — Atlas University Hospital Research project led by Yevhenii Kozlov · Co-Founder of Bookimed Updated 21 October 2026 Sources linked throughout Portrait source ↗ Hanifi Onalan Atlas University Hospital → Istanbul · Turkey Profile on Bookimed","related_documents":[{"id":"bariatric-surgery","title":"Bariatric and metabolic surgery: compare your options","kind":"home","url":"https://hub.bookimed.com/bariatric-surgery/","json_url":"https://hub.bookimed.com/bariatric-surgery/page-contexts/bariatric-surgery.json"},{"id":"clinic-5926","title":"Atlas University Hospital: surgeons and programmes","kind":"clinic-profile","url":"https://hub.bookimed.com/bariatric-surgery/clinic-5926/","json_url":"https://hub.bookimed.com/bariatric-surgery/clinic-5926/#page-context"}],"entity":{"id":"doctor.hanifi-onalan","source_ids":["source.04b1f91d00aa085e6425","source.242488496f873f738b60","source.37d5bce19db3837f364e"],"name":"Hanifi Onalan","bookimed_doctor_id":8358,"method_links":[],"selection_reason":null,"research_fact_ids":[],"personal_surgical_volume":null,"personal_volume_status":"unknown","selected_publications":[],"programme_id":"clinic.bookimed.5926","topics":["sleeve"],"procedure_relevance":[],"profile":{"intro":"Hanifi Onalan is a surgical oncologist at Atlas University Hospital in Istanbul, Turkey. 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