Case · Diagnostic clinic · Maracanaú · CE

Via Médica serves patients 24 hours a day. The front desk doesn't.

Via Médica Booking, rescheduling, exam quotes and prep instructions — handled by an AI agent on official WhatsApp, with the team stepping in only for cases that need a person.

+50,000

conversations handled by the AI since launch

85%

resolved with no human intervention

~1 min

average AI first response time

+1,700/mo

confirmed bookings

The problem

A front desk doesn't scale with demand

Via Médica receives thousands of contacts a month via WhatsApp: patients wanting to book, reschedule, ask for an exam quote or clear up a prep question. Every message depended on the front-desk queue — which also handles the counter and the phone.

Outside business hours, patients simply got no answer. And poorly communicated prep meant rescheduled exams: a loss for the clinic, frustration for the patient.

  • Patients with no answer outside business hours
  • A message queue competing with the counter and the phone
  • Poorly communicated exam prep driving reschedules
  • Slots lost for lack of active confirmation
The solution

An AI agent up front, engineering behind it

We designed an AI agent that handles the conversation end to end on the clinic's official WhatsApp: it understands the request, checks the calendar, books, reschedules, sends quotes and prep instructions — and hands off to the human team when the case calls for it.

Behind it, an orchestration layer built in n8n connects the agent to the clinic's systems, records every decision and feeds the metrics we review every month with the operation.

  • 24/7 service — 100% of conversations started by the AI
  • Autonomous booking, rescheduling and exam quotes
  • Prep instructions at booking and the day before
  • Active schedule confirmation and follow-up on abandoned conversations
  • Handoff to humans with full context
Architecture

From patient to metric, no black box.

Every conversation travels this path — and each step records data that feeds the continuous evolution of the operation.

Patientclinic's WhatsApp
Official Meta APIWhatsApp Business API
AI agentOpenAI · Google Gemini
Orchestrationn8n · autonomous processes
Clinic's calendar and systemsreal-time booking
MetricsPostgreSQL · every decision becomes data
Human teamhandoff with full context

Our own infrastructure · Docker · Redis for real time

Results

Stable scale, month after month.

Around nine thousand conversations a month run by the AI — no queue, no overtime, no dependence on the size of the front desk.

05k10k8,621JanFebMarAprMay8,959Jun
Conversations per month · 2026 · closed months, extracted from the customer service platform
Before × After

What changed in practice.

Service coverage

Before

10 h/day

Business hours

After

24 h/day

24 hours, 7 days

First response

Before

Front-desk queue

After

~1 minute, by the AI

Schedule confirmation

Before

Manual call, when possible

After

Active and automatic, the day before

Abandoned conversation

Before

Patient lost

After

Automatic follow-up at the right moment

Operational indicators

The whole operation becomes numbers.

~9,000

Conversations per month

stable at scale

+120k

Messages exchanged per month

835

Reminder confirmations (Jun)

41

Patients recovered via follow-up

in the first 2 weeks of the engine

Learnings

What this operation taught us.

  1. 01

    The biggest gain didn't come from responding fast — it came from never failing to respond. Coverage matters more than speed.

  2. 02

    Prep instructions delivered at the right time reduce exam reschedules. The timing of information is engineering, not a detail.

  3. 03

    Active confirmation turns the calendar into predictability: whoever doesn't confirm frees the slot in time to be rebooked.

  4. 04

    The AI needs to know when to step aside: handing off complex cases with full context is what sustains the team's trust.

Your operation could be next.

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