Where our data comes from

FastSpeech is built on transparent, public data. Here is exactly where it comes from:

• NPPES NPI Registry — primary source for provider name, NPI, address, taxonomy, and license. Updated monthly.
• U.S. Census Geocoder — converts provider addresses to coordinates.
• OpenStreetMap — base map tiles and supplementary points of interest. Used under ODbL with attribution.
• State licensing boards — periodic verification of license status.
• Patient reviews and SLP-edited claim profiles — submitted directly through this site.