Dermatologists in Cologne that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for dermatologists in Cologne, three times each, in German, and counted who they named. These are the businesses named in two or more of the 36 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 36
- Businesses named
- 23
- Named only once
- 11
- Named by 2+ assistants
- 5 of 12
- Named again on a rerun
- 49%
Edition September 2026. Download the data
Asked for dermatologists in Cologne, ChatGPT, Claude and Gemini most often named Hautzentrum Köln (42% of answers), Klinik und Poliklinik für Dermatologie und Venerologie der Uniklinik Köln (33%) and Dermatologie am Ring (28%). Across 36 answers they named 23 different businesses, 11 of them only once. Each of four buyer questions was asked three times, in German, in September 2026.
The ranking
The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | Hautzentrum KölnAlso written Hautzentrum am NeumarktIs this your business? | 95%: 27 to 58% | 17% | 8% | 100% | 4 of 4 | 1.3 |
| 2 | Klinik und Poliklinik für Dermatologie und Venerologie der Uniklinik KölnAlso written Uniklinik Köln, Klinik und Poliklinik für Dermatologie und Venerologie, Hautklinik der Uniklinik Köln, Uniklinik Köln – Klinik und Poliklinik für Dermatologie und Venerologie, Klinik und Poliklinik für Dermatologie und Venerologie, Uniklinik KölnIs this your business? | 95%: 20 to 50% | 83% | 17% | 0% | 4 of 4 | 1 |
| 3 | Dermatologie am RingAlso written Dermatologie am Ring Christiane Witte), Dermatologie am Ring Michael Babor)Is this your business? | 95%: 16 to 44% | 0% | 0% | 83% | 4 of 4 | 3.1 |
| 4 | Dermatologie am NeumarktAlso written Dermatologie am Neumarkt Michael Babor), MVZ Dermatologie am NeumarktIs this your business? | 95%: 14 to 41% | 8% | 0% | 67% | 3 of 4 | 2.6 |
| 5 | Hautarztpraxis Dr. med. Alice MartinIs this your business? | 95%: 10 to 35% | 0% | 0% | 58% | 4 of 4 | 3.1 |
| 6 | Dermatologikum KölnIs this your business? | 95%: 6 to 29% | 0% | 17% | 25% | 3 of 4 | 2.8 |
| 7 | Hautarztpraxis Dr. Sabine ZenkerAlso written Hautarztpraxis Dr. med. Sabine Zenker, Hautarztpraxis Dr. med. med. univ. Sabine ZenkerIs this your business? | 95%: 6 to 29% | 0% | 0% | 42% | 3 of 4 | 5 |
| 8 | PAN Klinik am NeumarktAlso written PAN Klinik am Neumarkt, DermatologieIs this your business? | 95%: 4 to 25% | 33% | 0% | 0% | 3 of 4 | 2.3 |
| 9 | Hautarztpraxis Dr. med. Stefan KuhlmannIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 3 of 4 | 3 |
| 10 | Haut- und Laserzentrum KölnIs this your business? | 95%: 3 to 22% | 0% | 17% | 8% | 2 of 4 | 4 |
| 11 | Klinik am RingAlso written Klinik am Ring, Dermatologie und LasermedizinIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 1 of 4 | 1.5 |
| 12 | Derma KölnAlso written Derma Köln Michael H. M. Bresser)Is this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 3 |
Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 11 more names came up in a single answer and are counted above but not listed.
Is this your business?
See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.
What each assistant said
The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.
| # | ChatGPT | Claude | Gemini |
|---|---|---|---|
| 1 | Klinik und Poliklinik für Dermatologie und Venerologie der Uniklinik Köln83% | Klinik und Poliklinik für Dermatologie und Venerologie der Uniklinik Köln17% | Hautzentrum Köln100% |
| 2 | PAN Klinik am Neumarkt33% | Dermatologikum Köln17% | Dermatologie am Ring83% |
| 3 | Hautzentrum Köln17% | Haut- und Laserzentrum Köln17% | Dermatologie am Neumarkt67% |
| 4 | Klinik am Ring17% | Hautzentrum Köln8% | Hautarztpraxis Dr. med. Alice Martin58% |
| 5 | Dermatologie am Neumarkt8% | No other name twice | Hautarztpraxis Dr. Sabine Zenker42% |
Claude named no business in 10 of its 12 answers.
Named here? Put it on your site
Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.
<a href="https://aigrow.gg/index/dermatologists/cologne"><img src="https://aigrow.gg/badges/index/2026-09/dermatologists/cologne.svg" width="312" height="100" alt="Named by AI assistants: Dermatologists in Cologne, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant, in German. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.
- 1Wer ist der beste Hautarzt in Köln?Who is the best dermatologist in Cologne?
- 2Ich habe Akne und möchte in Köln zu einem Hautarzt. Wen würdest du empfehlen?I have acne and want to see a dermatologist in Cologne. Who would you recommend?
- 3Welche dermatologische Klinik in Köln bietet Muttermalkontrollen an?Which dermatology clinic in Cologne does mole checks?
- 4Welchen Hautarzt in Köln würdest du für Laserbehandlungen empfehlen?Which dermatologist in Cologne would you recommend for laser treatments?
How to read this page
- What it measures
- Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
- Why the ranges matter
- 36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
- One business, several spellings
- Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
- A name is wrong
- If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.
Where the assistants look
The sites read most often, with web search on, before the assistants answer about this category in Germany. From the AI Source Map: 8 answers.
- reddit.com
- Read in 88% of the answers
- wikipedia.org
- Read in 88% of the answers
- jameda.de
- Read in 75% of the answers
Elsewhere in the Index
- Also in Cologne
- DentistsLawyersAccountantsPlumbersGymsReal estate agencies
Is your business on this list?
The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.
Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0