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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Stephen Douglas Bailey, ED. D.

Psychologist in Somerton, AZ · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255578324

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Registry record

Entity type Individual (Type 1)
Name Dr. Stephen Douglas Bailey
Credential ED. D.
Sex Male
Practice address Somerton, AZ, 85350
Phone (928) 627-1120
Fax (928) 722-6113
Enumeration date Jan 12, 2009
Last updated in NPPES Aug 13, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 3803 (AZ) Secondary
103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 1253 (AL) Secondary
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY-003803 (AZ) Primary

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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Frequently asked questions

What is the NPI number for Stephen Bailey?
The National Provider Identifier (NPI) for Stephen Bailey is 1255578324, a Type 1 (individual) record in the CMS NPPES registry.
Where does Stephen Bailey practice?
The practice location on file with NPPES is in Somerton, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-13.