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

Dr. Phylis Jane Wakefield, PH.D.

Addiction (Substance Use Disorder) Psychologist in Sonoma, CA · enumerated 2007.

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

National Provider Identifier

1811047780

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Registry record

Entity type Individual (Type 1)
Name Dr. Phylis Jane Wakefield
Credential PH.D.
Sex Female
Practice address Sonoma, CA, 95476
Phone (770) 722-2624
Enumeration date Jan 11, 2007
Last updated in NPPES Mar 3, 2010

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

Taxonomy & licenses

103TA0400X Addiction (Substance Use Disorder) Psychologist Behavioral Health & Social Service Providers · License PSY14649 (CA) Primary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY14649 (CA) Secondary
103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License PSY14649 (CA) Secondary
103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers · License PSY14649 (CA) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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 Phylis Wakefield?
The National Provider Identifier (NPI) for Phylis Wakefield is 1811047780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Phylis Wakefield practice?
The practice location on file with NPPES is in Sonoma, CA. 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 2010-03-03.