NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christine Madruga, PSY.D

Clinical Psychologist in Brentwood, CA · enumerated 2007.

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

National Provider Identifier

1871613471

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Christine Madruga
Credential PSY.D
Sex Female
Practice address 613 1st St, Ste 213, Brentwood, CA, 94513
Phone (925) 608-8736
Enumeration date Mar 29, 2007
Last updated in NPPES Jul 13, 2021

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY21308 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Christine Madruga practice?
The practice location on file with NPPES is in Brentwood, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Christine Madruga?
The National Provider Identifier (NPI) for Christine Madruga is 1871613471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-13.