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Dr. Holly Diane Parks, PSYD

Clinical Psychologist in Ione, CA · enumerated 2008.

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

National Provider Identifier

1255593729

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Registry record

Entity type Individual (Type 1)
Name Dr. Holly Diane Parks
Credential PSYD
Sex Female
Practice address 4001 Ca-104, Ione, CA, 95640
Phone (916) 662-6544
Enumeration date Jun 26, 2008
Last updated in NPPES Sep 9, 2022

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY26702 (CA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

Where does Holly Parks practice?
The practice location on file with NPPES is in Ione, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Holly Parks?
The National Provider Identifier (NPI) for Holly Parks is 1255593729, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-09.