A web app for Dr. Francisco Barreto’s cardiology practice
We designed and built an installable web app from scratch that brings the practice’s website, bookings, WhatsApp support and daily management into a single system.
- Client
- Cardiology practice in Venezuela
- Status
- Live since September 2026
- Platform
- Installable web app (PWA) on its own domain
- Quality
- 37 automated tests
Where we started
Coordinating appointments over phone calls and messages takes time and leaves information scattered across chats and notes. The practice needed a professional online presence and an orderly way to receive, confirm and remind appointments without adding work for the team.
Goals
- Let patients book an appointment online in a few minutes
- Prevent double bookings and no-shows with automatic reminders
- Answer on WhatsApp around the clock, always within clear limits
- Give the doctor a daily view of the schedule without opening the system
What we built
A complete system designed for patients, staff and the doctor.
Public website
The doctor’s profile, services, location and FAQ, optimized for search engines and mobile.
Online booking
Three-step booking with real-time availability and email confirmation.
Patient portal
A secure private area where patients check their appointments and information.
Admin panel
Schedule, patients and appointments managed by staff with role-based permissions.
AI WhatsApp assistant
Answers common questions and helps patients book. It never gives diagnoses and hands off to a person when needed.
Automatic notifications and summaries
Appointment reminders for patients, a daily summary for the doctor by email and WhatsApp, and a weekly summary.
Security by design
Health data: decisions made from day one, not bolted on at the end.
- The database makes it impossible to book the same slot twice
- Every WhatsApp message is signature-verified; if verification fails, it is rejected
- Duplicate messages are detected and processed only once
- The most privileged keys exist only on the server
- Role-protected routes and row-level access rules in the database
- Times always calculated in Venezuela’s time zone
Current status, transparently
- The app was delivered in September 2026 and is in use on its own domain.
- It serves one practice location; the system is ready to grow.
- It is still too early to publish measured results. We will share them once there is real data.
Services we applied in this project
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