Hanifi Onalan: bariatric surgeon profile

Surgeon profile

Hanifi Onalan: bariatric surgeon profile

Hanifi Onalan — Atlas University Hospital

Research project led by Yevhenii Kozlov · Co-Founder of BookimedUpdated 21 October 2026Sources linked throughout
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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)

Clinic and location

Hanifi Onalan · Atlas University Hospital · Istanbul, Turkey

Bookimed doctor profile

Sources (1)

Operations and published practice

  • Sleeve

Reported experience

27 years of experience. Biography source

Sources (1)

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)

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const doctorSelect=root.querySelector('#specialist-procedure'),doctorSearch=root.querySelector('#specialist-search'); if(doctorSelect){ const cards=[...root.querySelectorAll('[data-doctor-topics]')]; const filterDoctors=(emit=false)=>{ const key=doctorSelect.value,needle=doctorSearch.value.trim().toLocaleLowerCase();let n=0; cards.forEach(card=>{const show=(key==='bariatric'||card.dataset.doctorTopics.split('|').includes(key))&&(!needle||card.dataset.doctorSearch.toLocaleLowerCase().includes(needle));card.hidden=!show;if(show)n++;}); root.querySelector('#specialist-count').textContent=n+(n===1?' specialist shown':' specialists shown')+(key==='bariatric'?'':' · '+doctorSelect.selectedOptions[0].textContent); root.querySelector('#specialist-empty').hidden=n>0; keepProcedure(key==='bariatric'?undefined:leadConfig.topics[key].name); }; doctorSelect.addEventListener('change',()=>location.assign(leadConfig.directory_routes.surgeons[doctorSelect.value]||'/bariatric-surgery/surgeons/'));doctorSearch.addEventListener('input',()=>filterDoctors(false));filterDoctors(); }

const catalogue=root.querySelector('[data-treatment-catalogue]'); if(catalogue){ const records=JSON.parse(root.querySelector('#treatment-records').textContent),cards=[...catalogue.querySelectorAll('[data-treatment-id]')],focus=root.querySelector('#treatment-focus'),selection=root.querySelector('#treatment-selection'),panel=root.querySelector('#treatment-comparison'),table=root.querySelector('#treatment-compare-table'); const compare=()=>{const selected=cards.filter(c=>c.querySelector('input').checked).map(c=>records.find(p=>p.id===c.dataset.treatmentId));panel.hidden=selected.length1?'Compare programmes: ':'')+selected.map(p=>p.doctor+' — '+p.clinic).join(' / ');currentLeadTopic=selected.length?selected[0].topic_key:(leadConfig.page_topics[root.dataset.page]||'bariatric');refreshLeads(); if(selected.lengthp.label],['Doctor / team',p=>p.doctor],['Method',p=>p.method],['Why consider it',p=>p.card_benefit],['Price',p=>p.price_label],['What the quote covers',p=>p.care_summary],['Research',p=>p.evidence],['Actual operator',p=>p.operator_assignment]]; const tbody=document.createElement('tbody');rows.forEach(([name,get])=>{const tr=document.createElement('tr'),th=document.createElement('th');th.scope='row';th.textContent=name;tr.append(th);selected.forEach(p=>{const td=document.createElement('td');td.textContent=get(p);tr.append(td)});tbody.append(tr)});table.append(tbody); const link=panel.querySelector('[data-lead]');link.dataset.preference='Compare programmes: '+selected.map(p=>p.doctor+' — '+p.clinic).join(' / ');link.dataset.fixedTopic=leadConfig.topics[selected[0].topic_key].name;refreshLeads();track('bariatric_hub_programme_compare',{count:selected.length,procedure_group:selected[0].topic_key}); }; cards.forEach(card=>card.querySelector('input').addEventListener('change',event=>{const chosen=cards.filter(c=>c.querySelector('input').checked);if(chosen.length>3||new Set(chosen.map(c=>c.dataset.topic)).size>1){event.target.checked=false;selection.textContent='Compare up to 3 programmes for the same condition. Open another condition to compare a different operation.';return;}compare()})); focus?.addEventListener('change',()=>{let n=0;cards.forEach(c=>{const show=focus.value==='all'||c.dataset.focus.split('|').includes(focus.value);c.hidden=!show;if(show)n++;else c.querySelector('input').checked=false});root.querySelector('#treatment-count').textContent=n+(n===1?' programme shown':' programmes shown');root.querySelector('#treatment-empty').hidden=n>0;compare()}); }

const f=root.querySelector('#consultation-form'); if(f){ const q=new URLSearchParams(location.search),select=f.querySelector('#procedure'); const prior=q.get('procedure');if([...select.options].some(o=>o.value===prior))select.value=prior; const preference=(q.get('programme')||'').slice(0,360); const context=root.querySelector('#request-context');if(preference){context.hidden=false;context.textContent='Your selected team: '+preference;} f.addEventListener('submit',event=>{event.preventDefault();if(!f.reportValidity())return;const lead=makeLead(preference,select.value,'consultation-guide');leadHandoff(event,lead);if(!local)location.assign(lead.url);}); } root.querySelectorAll('a[data-cta]').forEach(link=>link.addEventListener('click',()=>track('bariatric_hub_consultation_start',{placement:link.dataset.cta}))); root.querySelectorAll('a[data-commercial]').forEach(link=>link.addEventListener('click',()=>track('bariatric_hub_offer_click',{destination:link.dataset.commercial}))); })();