Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Christopher Vu, DO
Hospitalist Physician in Orange, CA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891146643
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Registry record
Entity type Individual (Type 1)
Name Dr. Christopher Vu
Credential DO
Sex Male
Practice address 101 the City Dr S, Orange, CA, 92868
Phone (714) 456-8888
Enumeration date Jun 23, 2016
Last updated in NPPES Aug 24, 2026
Taxonomy & licenses
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 20A16730 (CA) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A16730 (CA) Secondary
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.
Frequently asked questions
Is NPI 1891146643 active?
Yes, as of the latest NPPES snapshot, NPI 1891146643 is active (record last updated 2026-08-24).
How do I verify Christopher Vu's NPI record?
Cross-check NPI 1891146643 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-24.