Available data in existing datasets.
| Database | Dataset (US) | No. of Patient Records |
| Electronic health records | 800 Million doctor visits annually | 154,000,000,000 |
| Medicare | 83 Million patients | 15,000,000,000 |
| Private payer | 177 Million patients | 34,000,000,000 |
| Wearable/implantable sensors | 20% Of population | 600,000,000 |
| Medical imaging data | 125 Million/y | 125,000,000 |
| Registries | 80 Major, several hundred minor | 5,000,000 |
| HCUP and other | 10 Million patients | 1,900,000,000 |
Abbreviation: HCUP, Healthcare Cost and Utilization Project.