Healthcare AEO: Get Cited by ChatGPT, Perplexity & AI Overviews

By Hanuman Sihag, Head of Innovation Chamber & SEO Lead at ICG.

What is AEO and why does it matter for healthcare?

AEO — Answer Engine Optimisation — is the discipline of structuring your healthcare brand's web presence so that AI engines (ChatGPT, Perplexity, Google Gemini, Google AI Overviews) cite it when patients ask health-related questions. It is distinct from SEO, which optimises for blue-link rankings on traditional search results pages.

For healthcare, AEO matters because the patient research journey has changed. A patient asking "best IVF doctor in Delhi" is increasingly likely to receive an AI-generated summary that names two or three specific clinics — before they ever see a Google results page. If your clinic is not structured to be cited, it does not matter how well you rank for blue links.

How patient search behaviour changed in 2025-2026

In 2022, a patient researching a medical procedure would type a query into Google and scroll through 10 blue links. In 2026, the same patient is more likely to ask ChatGPT a direct question ("what is the best IVF clinic in Gurgaon and what should I ask during the first consultation?") and receive a structured answer that names specific providers, describes their approach, and links to their websites.

67% of patients now consult AI before booking a healthcare consultation (ICG Aarambh Summit research, April 2026). Among urban, educated patients in Delhi NCR and Bangalore, the figure is estimated above 75%. Healthcare brands that have not built AEO infrastructure are invisible to the majority of their addressable market at the point of initial research.

The 5 schemas every healthcare brand needs

1. MedicalClinic (or Hospital)

The foundational schema for any healthcare facility. Required properties: name, address, telephone, url, openingHours, medicalSpecialty, availableService. Without this, Google and LLMs cannot reliably identify your facility as a healthcare provider when processing queries.

2. Physician

For doctor-led brands (specialist clinics, surgeon practices), Physician schema linked to the clinic's MedicalClinic schema is a strong authority signal. Include: name, medicalSpecialty, alumniOf (for IIT/IIM credentials), worksFor, url.

Frequently asked questions

Frequently asked questions

Frequently asked questions

Frequently asked questions

What does AEO stand for?

AEO stands for Answer Engine Optimisation. It is the practice of structuring web content to appear in AI-generated answers on platforms like ChatGPT, Perplexity, Google Gemini, and Google AI Overviews, as distinct from SEO which targets traditional blue-link search results.

How is AEO different from SEO?

SEO optimises for ranking position in traditional Google search results. AEO optimises for citation in AI-generated summaries and answers. Both use similar content infrastructure but AEO requires additional schema markup (FAQPage, Speakable, MedicalClinic) and a different content format: direct question-and-answer structure with answers under 300 characters.

Which AI search engines should healthcare brands optimise for?

Priority order for Indian healthcare brands in 2026: (1) Google AI Overviews — highest volume, appears in standard Google results, (2) Perplexity — used by research-oriented patients and urban professionals, (3) ChatGPT — growing fast, especially GPT-4o with web search, (4) Google Gemini — integrated into Android and Google Workspace.

How long does AEO take to show results?

AEO results appear significantly faster than SEO. Well-structured cornerstone content with correct FAQPage and MedicalClinic schema can appear in Google AI Overviews within 7-14 days of indexing. Perplexity citations typically appear within 3-7 days for topically relevant, citation-quality content.

What schema do healthcare websites need?

Healthcare websites need: MedicalClinic (or Hospital) for all facility pages, Physician for doctor profiles, FAQPage for all FAQ sections, MedicalProcedure or MedicalCondition for treatment pages, Speakable for TL;DR and first-paragraph content, and BreadcrumbList for all sub-pages.

Can patients book through ChatGPT?

Not directly in most configurations, but GPT-4o with web browsing can retrieve booking links and direct patients to your book-a-consultation page. Ensuring your booking page is linked from your AEO-optimised content pages makes this pathway functional.

Does AEO replace SEO?

No. AEO and SEO are complementary. Blue-link organic search still drives the majority of healthcare website traffic. AEO captures the growing AI search layer. Healthcare brands need both: SEO for volume, AEO for authority and the AI-search segment. The content investment overlaps significantly.

How do I check if my clinic appears in AI Overviews?

Search your primary queries (e.g., "best IVF clinic Delhi", "hair transplant cost Gurgaon") in Google while logged out, and check if an AI Overview appears. If it does, check whether your clinic is mentioned. Repeat weekly. For systematic tracking, ICG's AEO monitoring platform covers this automatically for all client accounts.

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2026 AEO benchmarks and the five mistakes that keep healthcare brands invisible

Between January and July 2026 we tracked citation frequency across 42 healthcare websites we operate inside the Client Elevation Programme. The pattern is now clear enough to publish. AEO is not a mystery — it is a discipline of entity clarity, schema hygiene, and answer-shaped content, in that order.

What healthcare brands are actually seeing (Jan-Jul 2026)

The gap between rows 1 and 4 is the entire AEO game. Everything else — GEO tricks, prompt-baiting, LLM-scraping — is noise.

Five mistakes we see on 8 out of 10 healthcare sites

1. Doctor pages without Person schema. ChatGPT and Perplexity need an entity to cite; a plain HTML bio is not one.
2. FAQ sections built as accordions with no FAQPage JSON-LD. The content exists; the machine cannot see it.
3. Treating AEO as separate from Google Business Profile. AI Overviews for “IVF near me” still pull from GMB reviews and Q&A — which is why we built Angryturtle.
4. No named author on medical content. Google's E-E-A-T guidelines and the AI engines that inherit them both demote anonymous medical claims.
5. Video assets on YouTube with zero schema on the embedding page. Our YODA system fixes this by wiring VideoObject + transcript into every embed.

If any of these describe your site, the fix sequence is boring but reliable — schema first, byline second, entity graph third. That is exactly the order we run inside every ICG engagement.