The verdict in three sentences
For a concierge medicine or longevity clinic in London, SEO captures patients already comparing memberships and doctors on Google, while AEO/GEO (visibility in the answers of AI assistants like ChatGPT) shapes the moment an executive asks "which clinic should I choose for a full health assessment in London". An established brand usually benefits from first measuring what those assistants already say about it, whereas a newer clinic must first exist properly on Google. Either way, the sector rule applies: evidence-based claims only, no promise of lifespan or health outcomes.
What do future members ask AI assistants, and why is your clinic missing?
Buyers in this market are often senior executives, wealthy families or founders who hand the research to an assistant. Their questions sound like "which longevity clinic in London offers follow-up by a GMC-registered doctor", "how much is a concierge medicine membership in Marylebone", "what does an executive health assessment include". An assistant answers from what it can find and cross-check: clear public pages, displayed prices or ranges, verifiable doctor biographies, mentions in health press or reputable directories.
A clinic is left out of answers for concrete reasons: prices hidden behind a form, vague membership inclusions, doctors without a dedicated page, marketing copy that overclaims and that assistants tend to ignore, or a brand too new to be cited elsewhere. No provider can guarantee that an AI assistant will recommend you; the work can only make your information readable, consistent and verifiable.
SEO or AEO/GEO: which lever for which situation?
| Criterion | SEO (Google) | AEO/GEO (AI assistants like ChatGPT) |
|---|---|---|
| Target | Queries such as "longevity clinic London", "private GP membership" | Conversational comparison and choice questions |
| Time to effect | Usually 4 to 9 months | Variable, often 3 to 6 months to see answers shift |
| Market budget (2026 ballpark) | 2,000 to 6,000 GBP a month with a healthcare agency | 3,000 to 8,000 GBP for a diagnostic, then 1,500 to 4,000 GBP a month |
| Metrics | Impressions, clicks, consultation requests | Presence and accuracy in a dated record of answers |
| Risks | Over-promotional health content, thin pages | Wrong information repeated, no mention at all |
| Dependency | Google's algorithm | Third-party sources and consistency of public information |
| Your situation | Suggested priority | Why |
| Clinic open for less than 18 months | SEO first, AEO basics alongside | Assistants rarely cite a brand with no established footprint |
| Known brand, doctors in the media | AEO diagnostic first | Check what assistants already say, often inaccurately |
| Tightly regulated health content | Compliance review before any lever | A disputed claim spreads quickly in answers |
| Limited budget (under 2,000 GBP a month) | Local SEO and pricing pages | Best cost per inquiry in the short term |
| Opening a second London site | Local SEO + compared AI record | Measure whether the new address is recognised |
What your content is allowed to say
The UK framework calls for caution. Doctors fall under the GMC, regulated services under the CQC in England, and the ASA oversees advertising claims, including on your own website. Health data is special category data under UK GDPR and the Data Protection Act 2018, overseen by the ICO; cookies and marketing email fall under PECR. Aim for WCAG 2.2 AA too, in line with the Equality Act 2010. This is not legal advice.
In practice that means wording about the tests offered rather than health benefits, scientific references when you cite a benefit, listed membership inclusions, and a member portal (on quote) that collects only the data it needs.
How to measure, and what a diagnostic covers
SEO is measured in Search Console and your CRM: impressions, clicks, consultation requests, membership conversions. AEO is measured through a dated record: the same list of 20 to 40 questions put to AI assistants at regular intervals, noting whether the clinic appears, how it is described and whether the information is accurate. In broad terms, a diagnostic covers that initial record, a review of your public information (site, directories, press), the consistency of prices and doctor names, gaps against competitors and a prioritised list of fixes. At Kolonell, this work is scoped on quote.
Mini case study
Illustrative example: Hollis Health, a longevity clinic in Marylebone with 220 members at 9,000 GBP a year. Its director, Tom, is weighing 4,000 GBP a month of SEO against a 5,000 GBP AEO diagnostic followed by 2,000 GBP a month.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Over 12 months, SEO costs 48,000 GBP; the AEO scenario costs 5,000 + 11 × 2,000 = 27,000 GBP. Six new members cover the SEO (6 × 9,000 = 54,000 GBP) and three cover the AEO (27,000 GBP). The initial record shows assistants quoting an old 6,500 GBP price: Tom chooses the diagnostic first, then reassesses SEO at month six.
FAQ
Does AEO replace SEO for a longevity clinic?
No, they complement each other: many of the sources assistants read are well-indexed pages. A clinic with no SEO groundwork is unlikely to appear in answers to 30 tested questions.
What does an AEO diagnostic cost in London in 2026?
A ballpark sits between 3,000 and 8,000 GBP depending on the number of questions, competitors and services analysed. Monthly follow-up then ranges from 1,500 to 4,000 GBP.
Can we display our membership prices?
Yes, and it often helps: clear ranges, for example 6,000 to 12,000 GBP a year, help assistants and patients compare. State what is included and excluded.
How do we know if an AI assistant describes our clinic wrongly?
Only a dated record shows it: the same questions are asked at fixed intervals, for example every 30 days, and the answers are compared. Common errors concern prices and doctor names.
Can a provider guarantee a recommendation from ChatGPT?
No. It can improve the clarity and consistency of your public information and measure change over 6 to 12 months.
Find out how AI assistants describe your firm. We record what AI assistants like ChatGPT say about your clinic on your key questions and compare it with your London competitors. Request a diagnostic quote: reply within 48 hours.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.