Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Han Ngoc Dinh, D.O.

Psychiatry Physician in Fontana, CA · enumerated 2014.

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

National Provider Identifier

1891106464

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Registry record

Entity type Individual (Type 1)

Name Han Ngoc Dinh

Credential D.O.

Sex Female

Practice address 9961 Sierra Ave, Fontana, CA, 92335

Phone (909) 427-5603

Fax (909) 427-5312

Enumeration date May 16, 2014

Last updated in NPPES Dec 21, 2021

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 20A14663 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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 Han Dinh?

Han Dinh is registered in NPPES with the primary taxonomy of Psychiatry Physician. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-21.