Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria Guadalupe Diosdado, NP

Family Nurse Practitioner in Fullerton, CA · enumerated 2024.

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

National Provider Identifier

1700628385

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Registry record

Entity type Individual (Type 1)

Name Maria Guadalupe Diosdado

Credential NP

Sex Female

Practice address 2151 N Harbor Blvd Ste 3200, Fullerton, CA, 92835

Phone (714) 446-5900

Enumeration date Jun 12, 2024

Last updated in NPPES Jul 29, 2024

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 1151509 (TX) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1151509 (TX) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95030067 (CA) Primary

163W00000X Registered Nurse Nursing Service Providers · License 95187676 (CA) Secondary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

Is NPI 1700628385 active?

Yes, as of the latest NPPES snapshot, NPI 1700628385 is active (record last updated 2024-07-29).

How do I verify Maria Diosdado's NPI record?

Cross-check NPI 1700628385 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-29.