Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sy H Oang, D.O.

Internal Medicine Physician in Whittier, CA · enumerated 2006.

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

National Provider Identifier

1972692937

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Registry record

Entity type Individual (Type 1)

Name Sy H Oang

Credential D.O.

Sex Male

Practice address 15725 E Whittier Blvd, Whittier, CA, 90603

Phone (562) 947-8478

Fax (562) 943-1090

Enumeration date Oct 11, 2006

Last updated in NPPES Mar 13, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A6673 (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

Is NPI 1972692937 active?

Yes, as of the latest NPPES snapshot, NPI 1972692937 is active (record last updated 2008-03-13).

How do I verify Sy Oang's NPI record?

Cross-check NPI 1972692937 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 2008-03-13.