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Romeo C. Castillo, MD

Family Medicine Physician in Hanford, CA · enumerated 2005.

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

National Provider Identifier

1083691778

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Registry record

Entity type Individual (Type 1)
Name Romeo C. Castillo
Credential MD
Sex Male
Practice address 1524 W Lacey Blvd, Suite 203, Hanford, CA, 93230
Phone (559) 853-4660
Fax (559) 583-4685
Enumeration date Dec 23, 2005
Last updated in NPPES Jan 23, 2013

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A83587 (CA) Primary
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
A83587 Other CA CALIF. LICENSE

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 Romeo Castillo's NPI record?
Cross-check NPI 1083691778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1083691778 active?
Yes, as of the latest NPPES snapshot, NPI 1083691778 is active (record last updated 2013-01-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-23.