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Dr. Frank Chieu, M.D.

Nephrology Physician in Oxnard, CA · enumerated 2006 · practices at Vista Del Mar Medical Group, Inc.

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

National Provider Identifier

1235203647

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Registry record

Entity type Individual (Type 1)
Name Dr. Frank Chieu
Credential M.D.
Sex Male
Practice address 1200 W Gonzales Rd, Suite 300, Oxnard, CA, 93036
Phone (805) 278-9094
Fax (805) 278-8964
Enumeration date Nov 17, 2006
Last updated in NPPES Jan 14, 2010

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License G25762 (CA) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G25762 (CA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
ZZZ34679Z Other CA BLUE CROSS
110039977 Other CA MEDICARE RAILROAD
ZZZ75566Z Medicaid CA -

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

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.
What specialty is Frank Chieu?
Frank Chieu is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-14.