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

Johnny Quang Nguyen, MSN, FNP

Nurse Practitioner in Santa Ana, CA · enumerated 2025.

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

National Provider Identifier

1881480788

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Registry record

Entity type Individual (Type 1)

Name Johnny Quang Nguyen

Credential MSN, FNP

Sex Male

Practice address Santa Ana, CA, 92705

Phone (714) 568-6600

Enumeration date Apr 17, 2025

Last updated in NPPES Jun 24, 2026

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP95038157 (CA) Primary

163W00000X Registered Nurse Nursing Service Providers · License 95226627 (CA) Secondary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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 specialty is Johnny Nguyen?

Johnny Nguyen is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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John Baker Interventional Cardiology Physician · Santa Ana, CA NPI 1124022850 Maleah Grover Cardiovascular Disease Physician · Santa Ana, CA NPI 1265472849 Annahita Sarcon Clinical Cardiac Electrophysiology Physician · Santa Ana, CA NPI 1265745848 Sonia Arriaza Marroquin Physician Assistant · Santa Ana, CA NPI 1578340774 Lauren Gomez Medical Physician Assistant · Santa Ana, CA NPI 1588471510

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-24.