Surgeon profile
Hanifi Onalan — Atlas University Hospital
Free Bookimed support. Compare options before deciding.
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.
27 years of experience. Biography source
USD 3300 Bookimed offer Oct 2026
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
Free Bookimed support. Compare options before deciding.
Free Bookimed support. Compare options before deciding.
const menu=root.querySelector('.menu-button'),nav=root.querySelector('.mobile-nav'); menu?.addEventListener('click',()=>{const open=menu.getAttribute('aria-expanded')!=='true';menu.setAttribute('aria-expanded',String(open));nav.hidden=!open;root.classList.toggle('menu-open',open);menu.textContent=open?'×':'☰';}); const sourceSelect=Object.fromEntries(Object.entries(leadConfig.page_topics).map(([page,topic])=>[page,leadConfig.topics[topic].name])); const incoming=new URLSearchParams(location.search).get('procedure'); const incomingTopicKey=Object.keys(leadConfig.topics).find(k=>leadConfig.topics[k].name===incoming); const allowedProfileTopics=(leadConfig.page_allowed_topics||{})[root.dataset.page]; const knownIncoming=incomingTopicKey&&(!allowedProfileTopics||allowedProfileTopics.includes(incomingTopicKey))?incoming:undefined; const activeProcedure=((leadConfig.flexible_pages||[]).includes(root.dataset.page)||root.dataset.page.startsWith('doctor-')||root.dataset.page.startsWith('clinic-'))?(knownIncoming||sourceSelect[root.dataset.page]):(sourceSelect[root.dataset.page]||knownIncoming); const keepProcedure=value=>{ currentLeadTopic=topicKey(value);refreshLeads(); root.querySelectorAll('a[data-team-link],a[data-context-link]').forEach(link=>{const target=new URL(link.href);if(!(target.pathname.startsWith('/bariatric-surgery/doctor-')||target.pathname.startsWith('/bariatric-surgery/clinic-')))return;if(value)target.searchParams.set('procedure',value);else target.searchParams.delete('procedure');link.href=target.pathname+target.search+target.hash;}); }; keepProcedure(activeProcedure); const topic=root.querySelector('#consultation-topic');if(topic&&activeProcedure){topic.hidden=false;topic.textContent='Your consultation topic: '+activeProcedure+'. This will be included in your request.';} const choices=[...root.querySelectorAll('[data-compare]')],comparison=root.querySelector('#compare-selected'); let updateComparison=()=>{}; if(comparison){updateComparison=(input)=>{ if(choices.filter(c=>c.checked).length>3){if(input)input.checked=false;root.querySelector('#compare-status').textContent='Choose up to 3 hospitals. Remove one before adding another.';return;} const selected=choices.filter(c=>c.checked).map(c=>c.closest('.provider'));comparison.hidden=!selected.length;root.querySelector('#compare-jump').hidden=!selected.length; root.querySelector('#compare-status').textContent=selected.length?selected.length+' selected — your comparison is below the hospital cards.':'Select up to 3 hospitals to compare their reported services and teams.'; const table=root.querySelector('#compare-table');table.replaceChildren();const head=document.createElement('thead'),hr=document.createElement('tr'); ['Compare',...selected.map(c=>c.querySelector('h3').textContent)].forEach(text=>{const cell=document.createElement('th');cell.scope='col';cell.textContent=text;hr.append(cell);});head.append(hr);table.append(head); const body=document.createElement('tbody'); const rows=[['Location',c=>c.querySelector('.place').textContent],['Why consider this team',c=>c.querySelector('.programme-fit').textContent],['Methods and procedures',c=>[...c.querySelectorAll('.tag')].map(t=>t.textContent).join('; ')],['Clinical detail',c=>[...c.querySelectorAll('.clinic-highlights li')].map(li=>li.textContent).join(' ')||c.querySelector('.programme-summary').textContent],['Named specialist',c=>c.dataset.surgeon],['Distinctive clinical value',c=>c.dataset.comparison]]; rows.forEach(([label,read])=>{const row=document.createElement('tr'),he=document.createElement('th');he.scope='row';he.textContent=label;row.append(he);selected.forEach(card=>{const cell=document.createElement('td');cell.textContent=read(card);row.append(cell);});body.append(row);}); const sr=document.createElement('tr'),sh=document.createElement('th');sh.scope='row';sh.textContent='Read the evidence';sr.append(sh);selected.forEach(card=>{const cell=document.createElement('td');cell.append(card.querySelector('.source-line').cloneNode(true));sr.append(cell);});body.append(sr);table.append(body); selectedTeams=selected.map(c=>c.querySelector('h3').textContent).join(' / ');const link=comparison.querySelector('[data-cta]');link.dataset.preference=selectedTeams?'Compare: '+selectedTeams:'';refreshLeads(); if(input)track('bariatric_hub_compare',{selected_count:selected.length}); };choices.forEach(input=>input.addEventListener('change',()=>updateComparison(input)));} const rankProcedure=root.querySelector('#rank-procedure'),rankLens=root.querySelector('#rank-lens'); if(rankProcedure){ const cards=[...root.querySelectorAll('[data-rank-family]')]; const updateRank=()=>{let n=0;cards.forEach(card=>{const show=(!rankProcedure.value||card.dataset.rankFamily===rankProcedure.value)&&(rankLens.value==='all'||card.dataset['rank'+(rankLens.value==='anatomy'?'Anatomy':rankLens.value==='multi'?'Multi':'Small')]==='true');card.hidden=!show;if(show)n++;});root.querySelector('#ranking-status').textContent=n+' surgical teams shown'+(n?'':' · No reviewed team matches this focus.');}; const revealStudy=()=>{const target=document.getElementById(location.hash.slice(1));if(!target?.classList.contains('study-evidence'))return;const details=target.closest('details');if(details)details.open=true;if(target.closest('.ranking-card')?.hidden){rankLens.value='all';updateRank();}target.scrollIntoView({block:'start'});};window.addEventListener('hashchange',revealStudy); const savedLens=new URLSearchParams(location.search).get('rank_focus');if([...rankLens.options].some(o=>o.value===savedLens))rankLens.value=savedLens; rankProcedure.addEventListener('change',()=>{location.assign((leadConfig.directory_routes['surgeon-rankings'][rankProcedure.value]||'/bariatric-surgery/surgeon-rankings/')+'#ranked-comparison');}); rankLens.addEventListener('change',()=>{updateRank();const u=new URL(location.href);if(rankLens.value==='all')u.searchParams.delete('rank_focus');else u.searchParams.set('rank_focus',rankLens.value);history.replaceState(null,'',u.pathname+u.search+u.hash);});updateRank();revealStudy(); } const diagnosisInput=root.querySelector('#diagnosis-search'); if(diagnosisInput){const rows=[...root.querySelectorAll('[data-diagnosis]')];const normalize=v=>v.toLocaleLowerCase().replaceAll('ё','е').normalize('NFKC');diagnosisInput.addEventListener('input',()=>{const tokens=normalize(diagnosisInput.value.trim()).split(/\s+/).filter(Boolean);let count=0;rows.forEach(row=>{const text=normalize(row.dataset.diagnosis);const show=tokens.every(token=>token.length0;});}
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}))); })();