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Dr. Delphine W Ong, M.D.

Medical Oncology Physician in Sacramento, CA · enumerated 2006.

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

National Provider Identifier

1023034022

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Registry record

Entity type Individual (Type 1)
Name Dr. Delphine W Ong
Credential M.D.
Sex Female
Practice address 3301 C Street, Building 500, Sacramento, CA, 95816
Phone (916) 733-5300
Fax (916) 733-5920
Enumeration date Jul 14, 2006
Last updated in NPPES Jan 9, 2014

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License A49552 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

How do I verify Delphine Ong's NPI record?
Cross-check NPI 1023034022 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1023034022 active?
Yes, as of the latest NPPES snapshot, NPI 1023034022 is active (record last updated 2014-01-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-09.