# synthetichealth/synthea

Synthetic Patient Population Simulator

Repository: https://github.com/synthetichealth/synthea
Canonical: https://ross.abutalabs.com/products/synthea
Homepage: https://synthetichealth.github.io/synthea
Language: Java
License: Apache-2.0
License Family: permissive
Topics: synthea, synthetic-data, synthetic-population, fhir, health-data, simulation
Last push: 2026-08-18T16:19:53+00:00

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 74, longevity 100
- inputs: {"age_days": 3729, "days_push": 15, "days_rel": 15, "gap_med": 165, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3313, forks 930 (observed 2026-08-28T04:07:55.991064+00:00)

## What it is
Synthea is an open-source synthetic patient population simulator that generates realistic but not real patient health records. It models patients from birth to death using modular disease rules and exports data in FHIR, C-CDA, CSV, and other formats.

## Use cases
- generate synthetic patient records for health IT testing
- create FHIR test data for a healthcare application
- simulate disease progression in a synthetic population
- produce privacy-free health datasets for academic research
- generate CSV patient data for analytics pipelines
- test clinical decision support systems with realistic data

## When to choose
- you need realistic synthetic health records without privacy restrictions
- you want FHIR R4/STU3/DSTU2 or C-CDA test data
- you are researching population health or policy with simulated patients

## When to avoid
- you need real patient data or clinical-grade accuracy
- you are not working in the healthcare domain
- you need a GUI-based data generation tool

## Facets
- artifact type: application
- maturity: active
- function: simulation, data-generation, developer-tools
- domain: healthcare, data-science, simulation
- platform: jvm, cli, cross-platform
- tags: synthetic-data, fhir, health-it, patient-simulation, hl7

## Member repositories
- synthetichealth/synthea (main) score 90

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:55.991064+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:42:23.032914+00:00, confidence not recorded.
  - readme: https://github.com/synthetichealth/synthea (fetched 2026-08-28T04:07:55.991064+00:00, sha bb9a66c573dd)
  - homepage: https://synthetichealth.github.io/synthea (fetched 2026-08-29T09:35:02.374905+00:00, sha 5a0075cba446)
- Data as of 2026-08-30T08:39:29.467469+00:00.