Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Stephen M Diggs, PSY
Psychologist in Chico, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700986908
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Registry record
Entity type Individual (Type 1)
Name Stephen M Diggs
Credential PSY
Sex Male
Practice address 80 Independence Cir Ste 220, Chico, CA, 95973
Phone (530) 891-4400
Fax (530) 636-4772
Enumeration date Sep 25, 2006
Last updated in NPPES Oct 2, 2025
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY18239 (CA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PSY182390 | Medicaid | CA | - |
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.
Frequently asked questions
What specialty is Stephen Diggs?
Stephen Diggs is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-02.