Data hosted within SyntheticMass has been generated by SyntheaTM, an open-source patient population simulation made available by The MITRE Corporation.
The data is free from cost, privacy, and security restrictions. It can be used without restriction for a variety of secondary uses in academia, research, industry, and government.
Please cite SyntheaTM or SyntheticMass as:
Jason Walonoski, Mark Kramer, Joseph Nichols, Andre Quina, Chris Moesel, Dylan Hall, Carlton Duffett, Kudakwashe Dube, Thomas Gallagher, Scott McLachlan, Synthea: An approach, method, and software mechanism for generating synthetic patients and the synthetic electronic health care record, Journal of the American Medical Informatics Association, Volume 25, Issue 3, March 2018, Pages 230–238, https://doi.org/10.1093/jamia/ocx079
Download the Data
The SyntheticMass data set is available for download in bulk as gzip archives. Each archive contains one million synthetic patient medical records, encoded in HL7 FHIR, C-CDA, and CSV.
- SyntheticMass Data, Version 1 (27 Feb, 2017): 28 GB. FHIR 1.8.0, CSV, C-CDA
In addition, sample files containing 100 or 1,000 patient records in multiple formats are available:
Latest Version of Synthea
- 100 Sample Synthetic Patient Records, C-CDA: 7 MB
- 100 Sample Synthetic Patient Records, CSV: 7 MB
- 100 Sample Synthetic Patient Records, FHIR R4: 36 MB
- 100 Sample Synthetic Patient Records, FHIR STU3: 22 MB
- 100 Sample Synthetic Patient Records, FHIR DSTU2: 14 MB
Previous Versions (2019–2021)
- 1K Sample Synthetic Patient Records, FHIR R4: 81 MB
- 1K Sample Synthetic Patient Records, FHIR STU3: 83 MB
- 1K Sample Synthetic Patient Records, FHIR DSTU2: 46 MB
- 1K Sample Synthetic Patient Records, C-CDA: 47 MB
- 1K Sample Synthetic Patient Records, CSV: 9 MB
Specialized Data Sets
COVID-19
- COVID-19 10K, CSV: 54 MB — ten thousand synthetic patient records with COVID-19 in CSV.
Walonoski J, Klaus S, Granger E, Hall D, Gregorowicz A, Neyarapally G, Watson A, Eastman J. Synthea™ Novel coronavirus (COVID-19) model and synthetic data set. Intelligence-Based Medicine. 2020 Nov;1:100007. https://doi.org/10.1016/j.ibmed.2020.100007
Childhood Obesity
- Synthetic Denver, FHIR: 295 MB. A population of 6,357 simulated child patients used by the Childhood Obesity Data Initiative.
mCode (Oncology)
- Breast Cancer, FHIR and mCode. The Minimal Common Oncology Data Elements project provides several breast cancer datasets.
Oh Canada!
- Sample of Canadian FHIR Data: 124 MB. Synthetic Canadian patients distributed across provinces.
The Coherent Data Set
This synthetic data set includes FHIR resources, DICOM images, genomic data, physiological data (such as ECGs), and simple clinical notes. FHIR links all data types together.
Walonoski J, Hall D, Bates KM, et al. The “Coherent Data Set”: Combining Patient Data and Imaging in a Comprehensive, Synthetic Health Record. Electronics. 2022; 11(8):1199. https://doi.org/10.3390/electronics11081199