The verdict in three sentences
Expat executives, affluent Japanese families and patients travelling from abroad now ask AI assistants like ChatGPT which longevity or concierge medicine clinic to choose in Tokyo, what membership costs and who the doctors are. The assistants answer with what they find: factual pages in Japanese and English, verifiable credentials, published fees and third-party mentions, and they often skip clinics whose site is vague or Japanese only. On the market, a diagnostic costs a 2026 ballpark of JPY 400,000 to 1,000,000 (roughly USD 2,700 to 6,700), and results are measured with a dated record of answers, with no promise of being recommended.
What patients ask AI assistants
A patient considering an annual membership worth several thousand dollars does not choose from an ad. They compare, often in English, sometimes from Singapore or Hong Kong ahead of a stay.
| Profile | Typical question put to an AI assistant | Information the answer needs to find |
|---|---|---|
| Expat executive in Minato | "English-speaking concierge medicine clinic in Tokyo with direct access to the doctor?" | Languages spoken, access terms, neighbourhood |
| Affluent Japanese family | "東京 会員制クリニック 費用" (membership clinic, cost) | Membership fees published in Japanese |
| Visiting foreign patient | "Comprehensive health check in English in Tokyo for a visitor, lead time?" | Check offered, appointment lead time, language |
| 55-year-old executive | "Evidence-based longevity programme in Tokyo, what is included?" | Programme content, tests, follow-up |
| Executive assistant | "Clinic in Tokyo that coordinates tests and specialists for a CEO?" | Coordination, hospital network |
| Cautious patient | "Are longevity clinics in Tokyo legitimate? Which doctors?" | Credentials, affiliations, publications |
| Retired couple | "Annual private clinic membership Tokyo, price in dollars?" | Price, terms, what is not included |
These questions mix two languages and two healthcare cultures. A clinic whose English site is a partial translation of the Japanese version is often described poorly.
Why some clinics get cited and others do not
No clinic controls what AI assistants say. Some characteristics do make an accurate mention more likely:
- Consistent public information: the same name in romaji and Japanese, the same address and hours on the site, maps and medical directories.
- Factual pages: what membership includes, what is billed separately, the tests performed, hospital partnerships.
- Doctors' credentials: degrees, specialties, affiliations, without flattering titles that cannot be verified.
- Third-party mentions: press, expat guides, chambers of commerce, medical associations.
- Structured data for the clinic, the physicians and the services.
- Freshness: 2023 fees still displayed in 2026 get repeated as they are by AI assistants.
Health claims must stay evidence-based. In Japan, medical advertising is regulated and clinic websites are covered, which limits testimonials and outcome promises. Never promise lifespan or health results. On data, the APPI and the Personal Information Protection Commission govern personal information, with stricter requirements for health data: forms should collect the minimum, and a member portal is a separate project, on quote. This is not legal advice.
What the work covers and what it costs
In broad terms, the work covers a diagnostic of current answers in Japanese and English, aligning public information, clarifying membership and physician pages, structured markup and regular tracking. The market is young; offers come from SEO agencies, healthcare marketing specialists and PR firms.
| Service | 2026 ballpark (JPY) | Approximate equivalent (USD) |
|---|---|---|
| One-off diagnostic, two languages | 400,000 to 1,000,000 | about 2,700 to 6,700 |
| Rewriting membership and physician pages | 50,000 to 150,000 per page | about 330 to 1,000 per page |
| Aligning directories and maps | 150,000 to 400,000 | about 1,000 to 2,700 |
| Monthly retainer, content + tracking | 300,000 to 800,000 per month | about 2,000 to 5,300 per month |
| Measurement only, quarterly report | 80,000 to 200,000 per month | about 530 to 1,300 per month |
| Medical review by a physician | Internal time | 4 to 10 hours per quarter |
These ranges reflect typical Tokyo agency quotes and public rate pages. At Kolonell this work is on quote, after a diagnostic.
How to tell whether it works
Measurement comes down to a dated record. You pick 25 to 40 questions split between Japanese and English, ask them of AI assistants every month and archive the answers. Three numbers matter: the share of answers citing the clinic, the accuracy of the information repeated (fees, languages, doctors) and the share of answers pointing to the official site. Moving from 10% to 25% of answers citing the clinic over two quarters is a useful signal; a single screenshot is not.
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Mini case study
Illustrative example: Azabu Longevity Clinic, three physicians, annual membership at JPY 1,800,000, roughly USD 12,000. The director logs 30 questions: out of 60 answers, 6 cite the clinic, which is 10%, and 3 quote an old fee.
She commissions a diagnostic at JPY 700,000 followed by six months of tracking at JPY 150,000 a month, JPY 1,600,000 in total, roughly USD 10,700. A single extra membership over the year represents JPY 1,800,000, which covers the spend. The outcome is not assured, but the fee errors do get fixed.
FAQ
Can we get AI assistants like ChatGPT to recommend us?
No, nobody can promise that. You can make public information clearer and more consistent, then follow the trend over 6 to 12 months.
Should we publish our membership fees?
It is strongly advisable, because patients ask about price in roughly one question in three. A published, dated fee stops the assistant repeating an old figure or an estimate.
Does the site need to be in English and Japanese?
For a clinic serving expats or foreign patients, yes. Two aligned versions reduce errors, especially on fees and languages spoken.
Can we quote patient testimonials?
Japanese rules on medical advertising heavily restrict testimonials. It is better to describe services, tests and credentials precisely.
What does a diagnostic cost on the market?
In a 2026 ballpark, between JPY 400,000 and 1,000,000, roughly USD 2,700 to 6,700. The price depends on the number of questions and languages tracked.
Find out how AI assistants describe your firm. We record what assistants say about your clinic in Japanese and English, and scope the priority corrections. 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.