The verdict in three sentences
Prospective members of a concierge medicine or longevity clinic in Amsterdam now compare offers by asking AI assistants like ChatGPT: membership price, doctors, tests included, scientific credibility. A clinic shows up in those answers when its public information is precise, careful and confirmed elsewhere, and the real danger is often an inaccurate answer about what the membership covers. Progress is tracked with a dated record of answers, on a market budget of EUR 1,800 to 8,000 depending on format, with no promise of being recommended.
The questions Amsterdam clients are asking
The client base mixes Dutch executives, tech and finance expatriates and international families. Questions arrive in English as well as Dutch.
| Question put to the assistant | Usual language | What a careful answer looks for |
|---|---|---|
| Which longevity clinic in Amsterdam is evidence based? | English | Scientific references cited, named doctors |
| Wat kost een longevity-abonnement in Amsterdam? | Dutch | Published membership price, what is included |
| Is there a concierge doctor in Amsterdam with same-day visits? | English | Written access times, area covered |
| Which clinic offers a full health check with blood panels and VO2 max? | English | List of tests per plan |
| Are the doctors at this clinic BIG-registered? | English or Dutch | Doctors' names verifiable in the BIG register |
| How is my health data handled at a private clinic in the Netherlands? | English | Clear privacy policy, GDPR |
| Longevity clinic Amsterdam versus Zurich: what is the difference? | English | Positioning, price, languages, factual comparisons |
The BIG register lets anyone verify the registration of healthcare professionals in the Netherlands: an assistant, like a careful patient, will lean on verifiable names rather than slogans.
What decides whether a clinic gets mentioned?
The same factors keep coming back: identical information on the site, directories and business profiles; factual pages per plan, per test and per doctor; mentions in health or business press; structured data readable by machines; dated, maintained content. This sector adds one requirement: claims must stay evidence based. A clinic that promises to 'take ten years off' may win clicks, but it gives assistants and authorities good reasons for caution. No promise of lifespan or health outcome should appear on the site.
Errors in answers are costly, because they create expectations the clinic cannot meet.
| Common error in an answer | Consequence | Source to correct |
|---|---|---|
| Full-body MRI presented as included | Disappointment and dispute at sign-up | Plan page listing tests included and excluded |
| Old membership price | Objection on the first call | Dated prices on the site and in directories |
| Departed doctor still named | Loss of trust | Team page and third-party profiles updated |
| Clinic described as a hospital | Confusion about medical scope | Factual description of status |
| Consultation languages missing | Expatriates lost | Explicit mention of English and Dutch |
On data, the GDPR (AVG in Dutch) applies under the supervision of the Autoriteit Persoonsgegevens: public forms should collect the minimum, and any member portal for test results is scoped separately, on quote. This is not legal advice.
What the work covers and what it costs
In broad terms: aligning public information, writing factual pages reviewed by a doctor, earning credible third-party mentions and tracking answers. The market is emerging; the figures are a 2026 ballpark from early European agency offers, approximate.
| Service | Range (2026 ballpark) | Note |
|---|---|---|
| AI visibility diagnostic | EUR 1,800 to 7,000 | One-off, 15 to 30 questions |
| Monthly programme | EUR 2,000 to 8,000 per month | 6 to 12 month commitment |
| English and Dutch factual page | EUR 250 to 800 per page | Excluding medical review |
| Review by a doctor | EUR 80 to 200 per hour | Often done in-house |
| Answer-tracking tool | EUR 90 to 500 per month | Ongoing |
At Kolonell this work is on quote after a diagnostic.
Measuring with a dated record
The same questions are asked at fixed intervals and every answer is archived. Sample rows from a record:
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| Date | Question | Clinic named | Accuracy |
|---|---|---|---|
| 6 January 2026 | Longevity clinic Amsterdam evidence based | No | Not applicable |
| 6 January 2026 | Wat kost een longevity-abonnement | Yes | 2024 price, inaccurate |
| 7 April 2026 | Longevity clinic Amsterdam evidence based | Yes | Accurate |
| 7 April 2026 | Wat kost een longevity-abonnement | Yes | Accurate |
Three indicators are enough: the share of answers naming the clinic, the accuracy of what is said, and the competitors named in its place.
Mini case study
Illustrative example: Grachtenhuis Longevity, a fictional clinic with 3 doctors and a membership at EUR 6,000 per year. The diagnostic asks 15 questions in 2 languages, twice each, so 60 answers. The clinic is named in 9 answers, 15%, and 3 of them wrongly state that an MRI is included. Two extra memberships a year represent EUR 12,000; a EUR 3,500 diagnostic would be covered by the first one, with no result promised.
FAQ
Do patients really use AI assistants to choose a clinic?
Increasingly, especially expatriates who do not know the Dutch system. Assistants often name 3 to 5 providers, with no guarantee for any of them.
How much does a diagnostic cost in Amsterdam?
On the market, EUR 1,800 to 7,000 in 2026 depending on the number of questions. At Kolonell it is on quote.
Can we talk about longevity without breaking the rules?
Yes, by staying factual: tests offered, doctors, evidence cited, prices. No outcome or lifespan promise, and a medical review of every page.
Do we need a Dutch version?
Yes if you target Dutch executives: a large share of price questions are asked in Dutch. Allow 20 to 40% more content budget.
How long before a measurable change?
Corrections to information can show up within 2 to 4 months. Third-party mentions often take 6 to 12 months.
Find out how AI assistants describe your firm. We record what assistants say about your clinic in English and Dutch and flag every inaccurate statement. 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.