Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Shelly Christina Williams, FNP-BC
Psychiatric/Mental Health Nurse Practitioner in Fulshear, TX · enumerated 2017 · practices at Mosaic Mental Health.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538680822
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| AP61561016 | Other | WA | WASHINGTON STATE LICENSE |
| AP09322 | Other | LA | LOUISIANA STATE BOARD OF NURSING |
| AP138281 | Other | TX | TEXAS LICENSE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-10.