Dermatologists in Porto that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for dermatologists in Porto, three times each, in Portuguese, 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
- 22
- Named only once
- 12
- Named by 2+ assistants
- 6 of 10
- Named again on a rerun
- 63%
Edition September 2026. Download the data
Asked for dermatologists in Porto, ChatGPT, Claude and Gemini most often named CUF (67% of answers), Clínica Dermatológica do Porto (39%) and Hospital da Luz (36%). Across 36 answers they named 22 different businesses, 12 of them only once. Each of four buyer questions was asked three times, in Portuguese, 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 | CUFAlso written Hospital CUF Porto, CUF Porto, Clínica Cuf Porto, Clínica CUF Porto, CUF Porto Hospital, CUF Porto Hospital - Serviço de DermatologiaIs this your business? | 95%: 50 to 80% | 100% | 25% | 75% | 4 of 4 | 2.3 |
| 2 | Clínica Dermatológica do PortoIs this your business? | 95%: 25 to 55% | 25% | 8% | 83% | 4 of 4 | 1.1 |
| 3 | Hospital da LuzAlso written Hospital da Luz Arrábida, Hospital da Luz Porto, Hospital da Luz Porto - DermatologiaIs this your business? | 95%: 23 to 52% | 33% | 17% | 58% | 4 of 4 | 3.5 |
| 4 | Lusíadas SaúdeAlso written Hospital Lusíadas Porto, Hospital Lusíadas Porto - Dermatologia, Lusiadas PortoIs this your business? | 95%: 20 to 50% | 67% | 17% | 17% | 4 of 4 | 3.1 |
| 5 | DermAgeAlso written Clínica DermAge, DermAge - Clínica de Dermatologia e EstéticaIs this your business? | 95%: 18 to 47% | 0% | 0% | 92% | 4 of 4 | 2 |
| 6 | Clínica de Dermatologia Dr. João Maia SilvaIs this your business? | 95%: 10 to 35% | 0% | 0% | 58% | 3 of 4 | 3.4 |
| 7 | Clínica do Dragão Espregueira-MendesAlso written Clínica do Dragão, Clínica do Dragão - Dermatologia, Clínica do Dragão - Espregueira-Mendes, Clínica Espregueira, Clínica Espregueira MendesIs this your business? | 95%: 6 to 29% | 8% | 0% | 33% | 3 of 4 | 2.6 |
| 8 | Clínica FisiodermeIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 1 of 4 | 3 |
| 9 | Clínica Dr.ª Manuela PeixotoAlso written Clínica Privada de DermatologiaIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 4 |
| 10 | Clínica de Dermatologia do PortoIs this your business? | 95%: 2 to 18% | 0% | 8% | 8% | 2 of 4 | 4.5 |
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. 12 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 | CUF100% | CUF25% | DermAge92% |
| 2 | Lusíadas Saúde67% | Hospital da Luz17% | Clínica Dermatológica do Porto83% |
| 3 | Hospital da Luz33% | Lusíadas Saúde17% | CUF75% |
| 4 | Clínica Dermatológica do Porto25% | Clínica Dermatológica do Porto8% | Hospital da Luz58% |
| 5 | Clínica do Dragão Espregueira-Mendes8% | Clínica de Dermatologia do Porto8% | Clínica de Dermatologia Dr. João Maia Silva58% |
Claude named no business in 9 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/porto"><img src="https://aigrow.gg/badges/index/2026-09/dermatologists/porto.svg" width="312" height="100" alt="Named by AI assistants: Dermatologists in Porto, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant, in Portuguese. 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.
- 1Quem é o melhor dermatologista no Porto?Who is the best dermatologist in Porto?
- 2Tenho acne e quero consultar um dermatologista no Porto. Quem me recomendarias?I have acne and want to see a dermatologist in Porto. Who would you recommend?
- 3Que clínica de dermatologia no Porto faz avaliação de sinais?Which dermatology clinic in Porto does mole checks?
- 4Que dermatologista no Porto recomendarias para tratamentos a laser?Which dermatologist in Porto 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.
Elsewhere in the Index
- Dermatologists elsewhere
- LisbonBelo HorizonteRio de JaneiroSão PauloAarhusAmsterdam
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