Nueva EPS members' appointments, in Microsoft Outlook. With Arbol, with no manual copying.
How it works
The Nueva EPS member calls or writes to your organization.
The assistant asks for the Nueva EPS order and authorization before offering a slot.
It checks availability in Microsoft Outlook and creates the appointment as an event on the clinician's calendar.
If the patient reschedules, it moves it in Microsoft Outlook and lets your team know.
What each one is
Health insurer (EPS) in the subsidized and contributory regimes
Nueva EPS
Nueva Empresa Promotora de Salud S.A. (Nueva EPS) is a health insurer (EPS) based in Bogotá, with members in both the subsidized and contributory regimes. It is the largest EPS in Colombia by membership and operates in every department.
Clinics work with Nueva EPS to check member eligibility, request authorizations, upload RIPS files and submit invoices.
11,312,640 members as of August 2026 (21.5% of the national total): 6,913,538 in the subsidized regime and 4,399,102 in the contributory regime. Source: minsalud.gov.co (opens in a new tab)
Providers use its Zona Transaccional portal for authorizations and eligibility checks, plus separate portals to upload RIPS files and submit invoices.
Arbol API. Arbol already has an API for the EPS: your tech team connects your systems to Nueva EPS from there.
Nueva EPS integrationEmail and calendar
Microsoft Outlook
Outlook is Microsoft's email and calendar, and it also manages contacts. It is part of Microsoft 365, where mailboxes live in Exchange Online, and it also works with personal Microsoft accounts. The new Outlook for Windows is free and requires no subscription.
Run email and calendars for clinical and admin staff, and send appointment invitations to patients.
Exchange Web Services (EWS) is disabled by default in Exchange Online starting October 1, 2026, and shuts down completely on April 1, 2027; Microsoft directs developers to migrate their apps to Microsoft Graph. Source: techcommunity.microsoft.com (opens in a new tab)
Microsoft Graph is Microsoft's REST API for Outlook: it can read, send and organize email, create and update events, check availability and receive change notifications.
Microsoft Outlook integration
Questions
Does it work if each clinician has their own Microsoft Outlook calendar?
Yes: before offering a slot, the assistant checks the availability of every Microsoft Outlook calendar your organization connected.
Do Nueva EPS or Microsoft Outlook endorse Arbol?
No. Nueva EPS and Microsoft Outlook 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. Nueva EPS and Microsoft Outlook do not sponsor or endorse Arbol. All integrations · Arbol's API
Let's look at Nueva EPS and Microsoft Outlook 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.