WhatsApp for EPS Sanitas members. With Arbol, on your organization's number.
How it works
The EPS Sanitas member writes on WhatsApp to your organization's number, at any hour.
The assistant asks for the EPS Sanitas order and authorization before offering a slot.
It books on your calendar and confirms the appointment on WhatsApp, with the instructions.
The day before, it sends a reminder; if they can't make it, it reschedules and offers the slot to the waiting list.
What each one is
Health insurer (EPS) in the contributory and subsidized regimes
EPS Sanitas
Entidad Promotora de Salud Sanitas S.A.S. (EPS Sanitas) is a health insurer (EPS) founded in 1994, after Colombia's social security reform. It has members in both the contributory and subsidized regimes and is the country's second-largest EPS by membership.
Clinics use the EPS Sanitas provider portal for hospital referrals and online office requests, and bill it for the care they give its members.
6,148,861 members as of August 2026: 4,628,224 in the contributory regime and 1,520,637 in the subsidized regime. Source: minsalud.gov.co (opens in a new tab)
Providers log in to its "Prestadores e Instituciones" portal, which includes an online office and hospital referrals.
Arbol API. Arbol already has an API for the EPS: your tech team connects your systems to EPS Sanitas from there.
EPS Sanitas integrationCustomer messaging
WhatsApp
WhatsApp Business is WhatsApp's (Meta) offering for companies, and it comes in two versions. The WhatsApp Business app is free and built for small businesses: a business profile, a product showcase and automated replies, with limited customization and integration. The WhatsApp Business Platform is for medium and large businesses: it gives API access to message customers at scale, connect other systems and send template messages, which are billed per message.
Confirm appointments, send reminders and answer patient questions on the channel they already use.
WhatsApp has more than 3 billion monthly users, according to Mark Zuckerberg on Meta's first-quarter 2025 earnings call. Source: techcrunch.com (opens in a new tab)
Meta publishes the WhatsApp Business Platform Cloud API, built on the Graph API, to send text, media, interactive and template messages and to receive incoming messages and delivery statuses by webhook.
WhatsApp integration
Questions
Does the EPS Sanitas member need to download anything?
No. They message on WhatsApp like any contact; the assistant answers in your organization's name and says it is its virtual assistant.
Do EPS Sanitas or WhatsApp endorse Arbol?
No. EPS Sanitas and WhatsApp are trademarks of their owners and do not sponsor or endorse Arbol. Arbol works on your organization's side, with the accounts and processes you already have with each.
What happens to patient data?
They are health data, sensitive under Colombia's Law 1581 of 2012: processed for a stated purpose, with the patient's authorization and with encryption and isolation per organization. Every conversation is recorded and exportable.
Trademarks and logos belong to their owners. EPS Sanitas and WhatsApp do not sponsor or endorse Arbol. All integrations · Arbol's API
Let's look at EPS Sanitas and WhatsApp in your operation.
A 30-minute demo with your team: how you work today, what we connect first and how long it takes. You leave with a written proposal.