How Our Therapist Data Is Sourced and Counted

The current inventory

The catalog uses exact, unscaled aggregate queries against Prospector’s provider table. Snapshot generated Oct 29, 2026. No real names, emails, phone numbers or provider identifiers are included in the public snapshot.

What the counts mean

Records count one row per valid-format NPI where available and distinct enriched rows without an NPI. Enriched rows can describe a provider already in the NPI data. Practice locations are distinct normalized source addresses with a street address. Records with email count non-empty values; unique emails count distinct trimmed and lowercased values. These counts do not establish mailbox validity.

Profession scope

The current feed uses taxonomy code prefixes 2251 (physical), 225X (occupational), 235Z00000X (speech-language) and 225700000X (massage). Rows labelled assistant, student or aide are excluded. Some source specialty labels conflict with these codes; classification requires review before live sales. This catalog does not claim that each source row represents a verified individual provider.

Geography

State and postal city come from the source address. County assignments are absent, so county products cannot be generated reliably. City lists require at least 100 distinct emails. Small lists show alternatives rather than a purchase button.

Dates and verification

The source update date is the BigQuery table modification time. Email dates are the earliest and latest recorded verification timestamps among email-bearing rows in each list; these do not mean all addresses were recently checked.

[Confirm how email addresses are sourced and matched to providers]

[Confirm check: e.g. syntax, domain and mailbox-level test]

[Confirm refresh schedule]

Sources and permissions

the NPPES NPI Registry plus [other sources to confirm, with permission to resell]

Source permissions and resale rights must be confirmed before live sales. The public sample contains only fictional data.