FHIR R4 · Proof of Concept

Sănătatea ta.
Dosarele tale.
Your Passport.

Nexmed is a patient-owned digital health platform. Centralise your medical history, book appointments across connected clinics, and control exactly which records each provider sees — built on open HL7 FHIR R4.

Un dosar, orice clinică

Your complete medical history in one place. Connected clinics access only the records you choose to share — no duplicate paperwork, no data silos.

You control visibility

Each encounter can be toggled public or private. Public encounters are visible to any connected clinic; private ones stay in your Passport only.

Open standard, no lock-in

Built on HL7 FHIR R4 — the international standard for health data exchange. Structured, portable data, compatible with any FHIR-compliant system.

Cum funcționează

Trei pași pentru a controla parcursul tău de sănătate.

1

Create your Nexmed Passport

Register, verify your email, and complete your patient profile with personal and medical baseline data.

2

Book across connected clinics

Browse departments and services offered by clinics in the ecosystem. Book directly — no phone calls, no intermediaries.

3

Records come back to you

After each visit the clinic pushes the encounter — diagnosis, prescriptions, documents — back to your Passport via FHIR, building your record over time.

What the platform does

A full proof-of-concept covering both Nexmed Passport and Nexmed CRM.

FHIR R4 data exchange

Patient, Appointment, Encounter, Observation and more — all exchanged as FHIR R4 transaction bundles over REST.

Appointment booking

Book from Nexmed Passport or from Nexmed CRM. Slot availability is calculated in real time from practitioner schedules.

Per-encounter visibility

Patients toggle each encounter as public or private. Nexmed CRM only sees what the patient has made visible.

Lifetime health record

Every visit, prescription, lab result and diagnosis — pushed by a clinic via FHIR or logged manually in your Passport.

Pentru clinici

Nexmed CRM — isolated per clinic

Each clinic runs on its own Nexmed CRM tenant — a separate PostgreSQL database, its own subdomain, and a dedicated OAuth2 connection to Nexmed Passport. No data crosses tenant boundaries.

  • FHIR R4 transaction bundles for data push and pull
  • Practitioner, department and appointment management
  • Role-based access: doctor, nurse, receptionist, lab technician
  • Tenant database provisioned automatically on registration
Read more about the project
FHIR
HL7 R4 standard
PHR
Patient-owned model
Multi
Tenant architecture
PWA
Installable on any device

Academic proof of concept. Nexmed was built as a thesis project at UMFST Târgu-Mureș (Medical Engineering). It demonstrates a working PHR architecture with FHIR R4 interoperability, not a production-ready medical system. Data protection and clinical compliance are outside the scope of this implementation.