Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ylang Thi Dong, PH.D.

Psychologist in Milpitas, CA · enumerated 2007.

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

National Provider Identifier

1982757290

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Registry record

Entity type Individual (Type 1)

Name Dr. Ylang Thi Dong

Credential PH.D.

Sex Female

Practice address 611 S Milpitas Blvd, Milpitas, CA, 95035

Phone (408) 945-5855

Enumeration date Jan 19, 2007

Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY19091 (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.

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Frequently asked questions

What specialty is Ylang Dong?

Ylang Dong is registered in NPPES with the primary taxonomy of Psychologist. 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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Rosalyn Lim Women's Health Nurse Practitioner · Milpitas, CA NPI 1598870925 Wai Yu Obstetrics & Gynecology Nurse Practitioner · Milpitas, CA NPI 1538255005 Bertram Barth Clinical Social Worker · Milpitas, CA NPI 1649342130 Joyce Gibson Nurse Practitioner · Milpitas, CA NPI 1508939919 Rita Freimuth Obstetrics & Gynecology Physician · Milpitas, CA NPI 1700951423 Robert Burns Optometrist · Milpitas, CA NPI 1215096540 Margaret Harrer Psychologist · Milpitas, CA NPI 1891854279 Peter Ly Clinical Psychologist · Milpitas, CA NPI 1356403448

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.