Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Dianne Kay Lassman Wolkenhauer, PHD

Clinical Psychologist in Rialto, CA · enumerated 2007.

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

National Provider Identifier

1295878858

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Registry record

Entity type Individual (Type 1)

Name Ms. Dianne Kay Lassman Wolkenhauer

Credential PHD

Sex Female

Practice address 850 E Foothill Blvd, Rialto, CA, 92376

Phone (909) 421-9399

Enumeration date Feb 14, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY14858 (CA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Dianne Wolkenhauer?

The National Provider Identifier (NPI) for Dianne Wolkenhauer is 1295878858, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dianne Wolkenhauer practice?

The practice location on file with NPPES is in Rialto, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Calvin Flowers, MD, Inc. Psychiatry Physician · Rialto, CA NPI 1366420317 Ghulam Noorani Psychiatry Physician · Rialto, CA NPI 1417900069 Hasnain Sadiq Psychiatry Physician · Rialto, CA NPI 1184641193 Irene Belknapp Nurse Practitioner · Rialto, CA NPI 1275556706 Myriam Aragon Marriage & Family Therapist · Rialto, CA NPI 1942216304 Alma Jacobo Day Training/Habilitation Specialist · Rialto, CA NPI 1942390760 James Bierman Clinical Psychologist · Rialto, CA NPI 1053491944 Fabiola Robles Clinical Social Worker · Rialto, CA NPI 1316012677

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.