Answers customers, sells and gives you your time back
WhatsApp chatbot for oncologists in Brazil that never leaves a customer without an answer
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
Updated on September 19, 2026 · Written by Bernardo Villela, CEO of CertuAI · Florianópolis (SC)
In oncology, what the AI does not do matters more than what it does. It handles the calendar and the paperwork, and leaves every conversation about results with the team.
Before you start, see the AI agent demos and the CRM with clinic examples.
What is the best WhatsApp chatbot for oncologists in Brazil?
The best WhatsApp chatbot for oncologists in Brazil is the one that answers on the number your clinic already uses, with business rules written by you. An AI agent on WhatsApp for oncologists is CertuAI's automatic assistant. It organizes appointments, explains which documents and reports the clinic needs for the first appointment and follows up on the insurance authorization request, without ever giving test results, talking about prognosis or advising on treatment.
Summary in 7 facts
- It handles the calendar and the paperwork, and leaves every conversation about results with the team.
- Before you start, see the AI agent demos and the CRM with clinic examples.
- The best WhatsApp chatbot for oncologists in Brazil is the one that answers on the number your clinic already uses, with business rules written by you.
- It does not give the result, under any circumstances.
- On a healthcare account, CertuAI prohibits interpreting tests, reports and imaging and saying whether something is serious, and these limits sit above the instructions the owner wrote.
- The emergency list that CertuAI applies on its own covers general signs: chest pain, shortness of breath, fainting, seizure, sudden confusion or slurred speech, weakness on one side of the body, bleeding that will not stop, or the person saying they have gotten much worse.
- CertuAI measured when patients write on WhatsApp across 17 clinics and practices that use CertuAI's AI: 28.2% of messages arrived outside Monday to Friday, 8 a.m. to 6 p.m., almost 3 in every 10.
By the numbers
| Number | What it means |
|---|---|
| 28,2% | CertuAI measured when patients write on WhatsApp at 17 clinics and practices that answer with CertuAI's AI: 28.2% of messages arrived outside Monday to Friday, 8am to 6pm, almost 3 in… |
| 19,259 messages | Source: CertuAI service database, 17 clinics and practices, 19,259 patient messages on WhatsApp from Jul 30 to Sep 30, 2026, measured Oct 1, 2026. |
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
| 5 people | The Start plan includes 5 people and, from the sixth on, each one costs R$ 30 (Brazilian reais) per month. |
| 10 people | Pro includes 10 people and Max includes 25. |
"Is the biopsy result ready?": how does the AI respond?
It does not give the result, under any circumstances. On a healthcare account, CertuAI prohibits interpreting tests, reports and imaging and saying whether something is serious, and these limits sit above the instructions the owner wrote. In oncology that is the whole point: the news belongs to the doctor, in the appointment, with the family in front of them.
What you control is the sentence and the path. Write in the Brain the response the clinic wants to give to this request, who takes over the conversation afterward and how soon. The AI delivers that sentence the same way every time, even in the middle of the night, and the conversation is flagged for the team.
Fever after a session: does the AI treat it as an emergency?
Only if you write the rule. The emergency list that CertuAI applies on its own covers general signs: chest pain, shortness of breath, fainting, seizure, sudden confusion or slurred speech, weakness on one side of the body, bleeding that will not stop, or the person saying they have gotten much worse. Fever in someone under treatment is not written there.
At an oncology clinic, write this rule before connecting the number: a message that mentions fever, chills or worsening after a session leaves automatic mode immediately, goes to the person you designate and carries the number the family should call. Then test the rule in the test tab, using the words your families use.
What does the AI do with each oncology message?
| Message | What the AI does |
|---|---|
| "Is the result ready?" | Does not give the result; sends your sentence and passes it to the team |
| "Is this serious, doctor?" | Does not assess and does not talk about prognosis |
| "Did the insurance approve the treatment?" | Repeats the rule and the timeline you wrote |
| "What do I bring to the first visit?" | Sends your list of reports, slides and tests |
| "He has had a fever since the session" | Only with your written rule: leaves automatic mode and alerts the team |
| "He is short of breath" | Tells them to call 192 (Brazil's emergency medical line) or go to the emergency room |
What CertuAI measured on clinic and practice WhatsApp
CertuAI measured when patients write on WhatsApp at 17 clinics and practices that answer with CertuAI's AI: 28.2% of messages arrived outside Monday to Friday, 8 a.m. to 6 p.m., almost 3 in 10. If the front desk works those hours, that's the part that waits until someone comes back.
| What was measured | Result |
|---|---|
| Patient messages that arrived outside Monday to Friday, 8am to 6pm | 28,2% |
| Messages that arrived on the weekend | 11,2% |
| Messages that arrived at night on a weekday, 6pm to midnight | 11,7% |
| Conversations that started outside Monday to Friday, 8am to 6pm | 29,9% |
Source: CertuAI service database, 17 clinics and practices, 19,259 patient messages on WhatsApp from Jul 30 to Sep 30, 2026, measured Oct 1, 2026. Business hours are Monday to Friday, 8am to 6pm, in each clinic's time zone. Test accounts, test contacts and imported history are excluded.
What changes in the clinic with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. Here are four everyday situations at the clinic before and after the CertuAI agent.
TodayFamily asking for results by message and getting different answers
With CertuAIOne answer, written by you, and the conversation goes to the team
TodayFirst appointment without reports, slides and tests
With CertuAIThe list arrives in writing and the reminder repeats it
TodayPhone ringing every day to ask about the authorization
With CertuAIThe rule and the timeline answered instantly, always the same way
TodayOvernight message with no reply
With CertuAIReply written by you, with the emergency path in one line
What does a conversation handled by the AI look like?
Example conversation
Clinic AI agent
Customer: What do I need to bring to the first appointment?
AI agent: The list is: reports, slides, imaging, the referring doctor's report and insurance card. The reminder repeats it the day before.
Customer: Can I reschedule next week's appointment?
AI agent: Yes. Next week I have your open slots.
Is an AI agent or manual customer service better for oncologists?
The agent wins at repetitive tasks, and the person keeps winning at what takes judgment. Done manually, someone at the clinic has to stop what they are doing; with the CertuAI agent the reply goes out on its own and you join the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Request for a biopsy result | Someone gives out information by message | The AI does not give results; the conversation goes to the team with your sentence |
| Documents for the first appointment | The family arrives without the reports and the appointment is less productive | The list goes in writing with the booking and returns in the reminder |
| Insurance authorization | The family calls every day to ask if it came through | The question gets the rule and the timeline you wrote, always the same |
| Overnight message from the family | Stays unanswered until morning | Gets a reply written by you, with the emergency path |
| Conversation that needs a person | Depends on who sees it first | Leaves automatic mode by your rule and alerts the person in charge of the department |
What does the WhatsApp agent do for oncologists?
It handles the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers patients your way, with your rules.
Test results are never given by the AI
On a healthcare account it does not interpret or deliver reports, biopsies or imaging. The conversation gets your sentence and goes to the team, without revealing anything ahead of time.
Documents for the first appointment
Reports, slides, imaging, the referring doctor's report and insurance card. The agent sends your list and the reminder repeats it the day before.
Insurance authorization explained once, answered every time
Who requests it, how long it usually takes, what the family needs to hand in. Written by you, repeated without variation.
Conversation leaves automatic mode
You write the topics the AI never answers, and the conversation goes to a person with the history attached.
Alert to the right person
If the clinic sets up departments, the AI classifies by topic and the server alerts the person in charge of that department, by message or email.
What questions do patients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday messages at the clinic no longer depend on you having your phone in hand.
How does the agent start answering at the clinic?
In three steps, on the same day. No installation, no code and no changing the number patients already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
How much does an AI agent on WhatsApp cost for oncologists?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
Get started now
Create my agentWhat needs to be ready before turning the agent on at the clinic?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The short list of what the agent can answer, and the sentence that sends everything else to a person
- The documents and tests for the first appointment and the second opinion
- How insurance authorization works: who requests it, what the family hands in and the timeline you usually give
- The written rule for fever, low immunity and worsening after a session, with the number the family calls
- The clinic's departments and who answers for each, if you want separate alerts
- The private prices that can be quoted by message
Whether the agent books appointments on its own or whether every booking in oncology goes through the team first.
The most common mistake: Giving the agent a wide scope on the assumption that it will sense severity on its own. In oncology, the list of what it answers needs to be short and explicit, and everything outside it is a handoff. Read how to fix this.
Frequently asked questions from oncologists
Can the AI talk about test results?
No. On a healthcare account it does not interpret or deliver reports, biopsies or imaging, and does not talk about prognosis. The conversation gets the sentence you wrote and goes to the team.
Does it recognize on its own that fever after chemotherapy is serious?
No. The automatic list covers chest pain, shortness of breath, fainting, seizure, sudden confusion, weakness on one side of the body and bleeding that will not stop. Fever in a patient under treatment is not on it: write that rule in the Brain, with the number the family should call.
Can I leave the AI only on scheduling and documents?
Yes, and it is the most common use in oncology. You write the short list of what it answers and send everything else to a person.
Who can read these conversations?
They stay in the clinic's account, with role-based access, only for whoever you authorize. The Start plan includes 5 people and, from the sixth on, each one costs R$ 30 (Brazilian reais) per month. Pro includes 10 people and Max includes 25.
Other clinic questions CertuAI has answered
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
In short
Never gives test results or talks about prognosis. Handles scheduling, insurance and documents in the CRM, and passes the rest to the team.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent