NPI Portal NPI Lookup & Verification

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

Ms. Diana Ximena Castillo-Eddy, MS.

Marriage & Family Therapist in Glendale, CA · enumerated 2007.

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

National Provider Identifier

1609908250

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Registry record

Entity type Individual (Type 1)
Name Ms. Diana Ximena Castillo-Eddy
Credential MS.
Sex Female
Practice address Glendale, CA, 91203
Phone (626) 375-7224
Fax (818) 484-8177
Enumeration date Mar 9, 2007
Last updated in NPPES Jan 16, 2013

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC 46085 (CA) 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

How do I verify Diana Castillo-Eddy's NPI record?
Cross-check NPI 1609908250 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609908250 active?
Yes, as of the latest NPPES snapshot, NPI 1609908250 is active (record last updated 2013-01-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-16.