Reviews clearly matter for Google local visibility. Their role in ChatGPT is less direct.
Reviews can give patients useful public reputation evidence. OpenAI doesn't publish a review threshold, score, or formula that guarantees a med spa will be mentioned.
Google local rankings and ChatGPT recommendations are different results
It's easy to blend the two together. A clinic's Google Business Profile can show its address, services, rating, and patient reviews. ChatGPT can also search the public web when answering a local question.
That doesn't mean ChatGPT copies Google's local rankings. It doesn't mean every Google review feeds directly into a ChatGPT answer either.
The safe way to read the evidence is to separate what Google confirms, what Search Atlas observed, what Serum reasonably infers, and what OpenAI hasn't disclosed.
| Claim | Available evidence | Limit |
|---|---|---|
| Reviews can help Google local visibility | Google names review count and positive ratings as contributors to local prominence | No fixed count guarantees a position |
| Review signals are associated with map visibility in beauty services | A Search Atlas model found review volume and review relevance were important features | Correlation, not causation, and not a med-spa-only sample |
| Reviews make a clinic appear in ChatGPT | A six-platform Search Atlas study found only small aggregate correlations | Not ChatGPT-only, not med-spa-specific, and no causal test |
| Reviews prove clinical quality | No evidence used here supports that claim | A review describes one person's reported experience |
What Google confirms about med spa reviews
Google says its local results are mainly based on relevance, distance, and prominence. It also says that review count and positive ratings can help a business's local ranking.
That gives med spas a clear reason to maintain an honest review program. Reviews can help a clinic stand out in Google Search and Maps. They can also help a prospective patient understand what past customers chose to share.
Google doesn't publish a fixed review target. A clinic with 500 reviews isn't guaranteed to outrank one with 100. Location and query relevance still matter. The completeness and accuracy of the Business Profile matter too.
What the Search Atlas local study found
Search Atlas published an XGBoost analysis of Google Business Profile rankings across 3,269 businesses. The full dataset covered several sectors. It didn't contain 3,269 beauty businesses.
The relevant category in the public report is called Beauty Care Services. The report doesn't disclose how many of the 3,269 businesses fell into that category, and it doesn't identify a med-spa-only sample.
For Beauty Care Services across positions 1 to 21, the model assigned a 31.1% feature-importance score to distance. Review volume received 27.0%. Review-to-keyword relevance received 26.3%.
Among positions 1 to 10, distance rose to 41.6%. Review relevance received 22.2%. Review volume received 19.3%.
These are model feature-importance scores. They aren't published Google ranking weights.
The useful takeaway is narrower than “reviews beat proximity.” Review volume and relevant review language were strongly associated with Google map visibility in this beauty-category proxy. Distance remained the strongest individual feature in both published Beauty Care models.
The study also states its own limits. It measured correlations rather than causation. It used a fixed geographic grid and a point-in-time dataset. The sectors weren't equally represented.
What remains unproven for ChatGPT
OpenAI says ChatGPT Search uses several factors intended to surface relevant and reliable information. It may rewrite a prompt into more targeted searches. Location can also change the result.
OpenAI doesn't identify patient review count, review velocity, average rating, or review replies as confirmed local-business ranking factors.
OpenAI also doesn't say that ChatGPT follows Google's local pack or reads every Google Business Profile. Its public documentation doesn't support a direct “Google reviews go into ChatGPT” claim.
A ChatGPT result can change with the prompt, location context, available sources, and timing. One answer is evidence of one test. It isn't a permanent clinic ranking. Read our broader guide to how AI assistants choose which clinics to mention for the platform-level detail.
What Search Atlas found across six AI platforms
A separate Search Atlas study examined 104,855 local-intent citations across OpenAI, Gemini, Perplexity, Grok, Copilot, and Google AI Mode.
Its Google Business Profile subset contained 14,300 citations. The study reported small correlations of about 0.10 for review count, 0.11 for review replies, and 0.06 for average rating against citation rank.
The study describes these effects as small and supplementary. The figures combine six platforms. They aren't med-spa-specific and they aren't ChatGPT-only.
This supports a careful conclusion. Public reputation information may contribute context to AI-generated local results. The study doesn't prove that adding reviews causes a clinic to appear in ChatGPT.
How Serum interprets the evidence
I'd treat reviews as public reputation evidence, not a ChatGPT ranking switch.
A review profile shows what reviewers publicly report about a clinic. Search Atlas found small associations between Google Business Profile review signals and citation rank, but that doesn't show which review content a platform retrieved. Reviews can't prove clinical quality, patient suitability, or provider superiority.
Reviews also sit beside the rest of the clinic's public information. A treatment page should explain what the clinic offers. Provider pages should name the real people involved and state verifiable credentials. The website and public listings should agree on the clinic's name, location, and services.
That combination makes the business easier for a person to verify. OpenAI hasn't published a formula that assigns it a specific weight. Serum's AI visibility service for med spas measures the named result instead of promising a formula.
What a med spa should do with reviews
Ask eligible customers for honest feedback through a neutral link or QR code. Ask consistently rather than only approaching people who seem happy.
Don't offer a discount, free treatment, or another incentive. Don't ask a reviewer to mention Botox, a device name, or a specific provider. Google prohibits fake engagement and requests for specific review content.
Reply when your response adds something useful. Keep patient privacy intact. A public reply shouldn't reveal or confirm private treatment information.
Then fix the surrounding information. Keep the Business Profile accurate. Publish clear treatment and provider pages. Make the clinic's own pages eligible for ChatGPT Search by allowing OAI-SearchBot and OpenAI's published IP ranges.
Blocking OAI-SearchBot can stop the clinic's own pages from being eligible for ChatGPT Search. It doesn't make every other fix pointless. ChatGPT may still find third-party information about the business.
Measure the result without inventing a formula
Choose a small set of real patient questions. Record the exact prompt and location context. Save the clinics named and the sources cited.
Repeat the same test after the work has had time to be discovered. Report what changed. Keep review growth, content changes, and AI mentions as separate observations unless the evidence supports a direct connection.
Reviews are worth improving because patients use them and Google confirms their local value. Any ChatGPT benefit should be measured rather than promised.
You can see the evidence format in Serum's sample clinic snapshot.
Frequently asked questions
How many reviews does a med spa need to show up in ChatGPT?
OpenAI publishes no review threshold for local clinic recommendations. A specific count can't guarantee a mention.
Are Google Maps rankings and ChatGPT recommendations the same?
No. Google confirms that reviews can help local ranking. OpenAI doesn't say ChatGPT copies Google's local results or always uses Google Business Profile data.
Should a med spa ask reviewers to mention a treatment or provider?
No. Ask for honest feedback through a neutral process. Don't offer incentives or steer customers toward specific wording. Google requires reviews to reflect a genuine experience.
Do positive reviews prove clinical quality?
No. Reviews are patient-reported experiences. They don't establish treatment suitability, provider superiority, or a guaranteed outcome for another patient.
Sources
- Google Business Profile Help: Tips to improve your local ranking
- Google Business Profile Help: Tips to get more reviews
- Google Maps: Prohibited and restricted review content
- Search Atlas: Beyond Proximity, a feature-level study of Google Business Profile rankings
- Search Atlas: How LLMs rank local businesses
- OpenAI: Searching the web with ChatGPT
- OpenAI: Overview of OpenAI Crawlers
This article covers marketing visibility. It doesn't provide medical, legal, privacy, or compliance advice.