Answer engine optimization (AEO) means writing the questions patients ask as headings and answering each one directly, in a short passage an AI assistant or Google can lift and quote. Patients ask the same things over and over: does insurance cover it, how long is recovery, what happens at the first visit. A practice that answers those plainly on its own pages gives every answer engine something accurate to work with.
In short: Answer engine optimization is writing direct, sourced answers to the questions patients actually ask, so AI assistants and Google can quote them. Find the questions in your phone calls, messages and Search Console; answer each in 40 to 60 words; cite MedlinePlus or PubMed for clinical facts; and show who reviewed the page and when.
What answer engine optimization is
An "answer engine" is any system that replies with an answer instead of a list of links: Google AI Overviews and AI Mode, ChatGPT, Perplexity, Gemini, Claude, and voice assistants. AEO is the writing discipline that serves them all. It has three habits:
- Question-shaped headings that match how a patient phrases the question.
- A direct answer first, in 40 to 60 words, before any background.
- Sources and specifics: a link for each clinical claim, and the local facts only you know.
The term has measurable demand: "answer engine optimization" gets 2,400 searches a month (DataForSEO keyword difficulty 43) and "what is answer engine optimization" 1,000 (Google Ads Keyword Planner data via DataForSEO, US, 12-month average to Sep 2026). If you're sorting out the labels, see GEO vs SEO vs AEO.
Before you write a word, it helps to know whether assistants already mention you. The free marketing audit asks Claude and Gemini, with live web search, and reports what they say.
Finding the questions patients actually ask
You already hear the questions. Collect them for a month from four places:
- The front desk. Ask staff to tally the questions they answer by phone. "Do you take Medicaid?" asked 40 times a month deserves a clear answer on your site.
- Patient messages and emails. Copy the question, never the patient. Strip names, dates and anything else that identifies someone before it leaves your systems.
- Search Console. In the Performance report, filter queries with "Custom (regex)" to find question-style searches, for example
^(how|what|does|do|can|is|when|why)\b. Google's filtering help (opens in a new tab) confirms the RE2 syntax and that matching is case-insensitive by default. - Reviews. Patients often say what surprised them ("I didn't know the consult was free"). That's a question someone else will ask before booking.
Then group them by service and rank them by how often they come up. Three to five per service page is plenty.
Writing an answer block: 40–60 words, sourced
Put the question in a heading. Answer it in the first sentence. Add the detail that makes it yours. Link the source for any clinical statement. Below are three illustrative examples for fictional practices.
Illustrative example (dermatology): Should I get a changing mole checked? Yes. MedlinePlus notes that "often the first sign of melanoma is a change in the size, shape, color, or feel of a mole." At Riverbend Dermatology, new-patient skin checks are usually available within two weeks, and a full-body exam takes about 15 minutes. Call us if a mole is changing.
Illustrative example (dental): Does Harbor Dental take my insurance? We are in network with Delta Dental PPO, MetLife and Cigna Dental, and we file claims for most other PPO plans as an out-of-network provider. We don't accept HMO dental plans. Send us your plan name before your visit and we'll confirm coverage and your expected cost within one business day.
Illustrative example (physical therapy): What happens at my first physical therapy visit? Your first visit at Northside Physical Therapy takes about 60 minutes. Your therapist reviews your history, tests strength and movement, and agrees goals with you. Most patients leave with two or three home exercises. Wear clothes you can move in, and bring your referral if your insurance plan requires one.
Notice what they share: the answer comes first, the one clinical claim is quoted from MedlinePlus (opens in a new tab), and the rest is practical detail no national website can supply. That last part is what makes a local page worth citing; our guide to AI citations explains why.
Medical accuracy: sources, review and dates
Health answers carry a higher bar. Google's Search Quality Rater Guidelines, the September 11, 2025 version, treat health as a "Your Money or Your Life" topic and say "consistency with well-established expert consensus is important for medical advice" (Google (opens in a new tab)). Google's people-first content guidance also asks whether it is self-evident who wrote a page, and recommends accurate bylines (Google Search Central (opens in a new tab)).
A workable standard for a practice:
- Source order: MedlinePlus for patient-level explanations; PubMed (opens in a new tab), which indexes more than 40 million citations of biomedical literature, for research; the CDC for public-health topics; your specialty body for practice guidance.
- A named clinical reviewer with credentials, shown on the page.
- A "last reviewed" date, and a calendar reminder to re-review each page at least yearly or when guidance changes.
- No outcome promises. Write "most patients", "usually" and "your clinician will advise", not "you will".
- No individual advice. Answer the general question and invite the patient to call about their own situation.
Medfy's automated SEO follows the same sourcing model: researched articles are drafted from MedlinePlus and PubMed every week, and the practice approves each one before it's published, or chooses auto-publish.
FAQ sections and structured data: what still helps
The rules here changed recently. In September 2023 Google limited FAQ rich results to "well-known, authoritative government and health websites". In May 2026 it deprecated the feature, and on June 15, 2026 it removed the documentation, noting the FAQ rich result "is no longer shown in Google Search results" (Google Search Central updates (opens in a new tab)).
What that means for a practice:
- FAQ markup no longer earns an expandable result in Google. Don't add it expecting one. Our page on FAQ schema covers what the markup can and can't do now.
- No special markup for AI. Google's generative AI guide says structured data isn't required for its AI features and there's no special schema.org markup to add (Google Search Central (opens in a new tab)).
- FAQ sections still help. A visible block of questions and answers is easy for patients to scan and gives every answer engine clean, quotable passages.
- Other structured data still matters, such as marking your practice as a local business with the right address, hours and phone, as long as it matches what the page says.
Where answers show up: AI Overviews, assistants, voice
- Google AI Overviews. Questions are where they appear most. In Pew Research Center's March 2025 browsing data, searches starting with a question word produced an AI summary 60% of the time, and searches of 10 words or more did so 53% of the time, versus 8% for one- or two-word searches (Pew Research Center (opens in a new tab)). Google says its AI features use the same index and no extra requirements (Google Search Central (opens in a new tab)); see our guide to Google AI Overviews.
- Chat assistants. ChatGPT, Perplexity, Claude and Gemini search the web for current questions and cite pages. A clean 50-word answer is easier to quote than a 600-word essay.
- Voice. Google's AI Mode accepts spoken questions: you can tap the microphone icon and ask out loud (Google Canada (opens in a new tab)). Spoken questions tend to be full sentences, which is exactly how an answer block is written.
None of this means an assistant will quote or name your practice; answers vary by phrasing, location and day. To see where you stand today, the free marketing audit checks your AI visibility and whether AI crawlers can read your site. The wider picture is in AI visibility for practices.
Frequently asked questions
What is AEO in marketing?
AEO stands for answer engine optimization: writing content so systems that reply with answers, such as Google AI Overviews, ChatGPT and Perplexity, can find and quote it. In practice it means question-shaped headings, a direct 40-to-60-word answer first, and sources for every factual claim. For a medical practice, the questions come from phone calls, patient messages, reviews and Search Console.
Is AEO the same as GEO?
They overlap but aren't identical. AEO is about writing: answering specific questions directly and clearly. GEO, generative engine optimization, is broader and covers everything that affects whether AI answers use and cite you, including crawler access, listings and reviews. Google treats both as part of SEO. Think of AEO as the content layer inside GEO and SEO.
Do FAQ pages help with AI answers?
They can, as content. A visible list of real patient questions with short, sourced answers gives assistants clean passages to quote and helps patients decide. The markup is a different story: Google stopped showing FAQ rich results in May 2026 and says no special markup is needed for its AI features. Write FAQs for patients, not for a search feature.
How should a practice write medical answers safely?
Cite MedlinePlus, PubMed, the CDC or your specialty body for every clinical statement. Name the clinician who reviewed the page and show the review date. Answer the general question, avoid promising outcomes, and invite patients to call about their own situation. When mining patient messages for questions, copy the question only and strip anything that identifies the patient.