Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Arnold Samuel Castro Jr., FNP-C
Nurse Practitioner in Brawley, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1407325582
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Registry record
Entity type Individual (Type 1)
Name Arnold Samuel Castro Jr.
Credential FNP-C
Sex Male
Practice address 751 W Legion Rd Ste 103, Brawley, CA, 92227
Phone (760) 351-4400
Enumeration date Nov 18, 2018
Last updated in NPPES Feb 15, 2019
Taxonomy & licenses
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP95010355 (CA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP95010355 (CA) Primary
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
What is the NPI number for Arnold Castro?
The National Provider Identifier (NPI) for Arnold Castro is 1407325582, a Type 1 (individual) record in the CMS NPPES registry.
Where does Arnold Castro practice?
The practice location on file with NPPES is in Brawley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Sunny Richley Internal Medicine Physician · Brawley, CA NPI 1588608475 Oscar Lopez Gastroenterology Physician · Brawley, CA NPI 1205034733 Sunny R Richley MD Corporation Family Medicine Physician · Brawley, CA NPI 1083898902 Oscar A Lopez MD Gastroenterology Physician · Brawley, CA NPI 1689070088 Noemi Esparza Family Nurse Practitioner · Brawley, CA NPI 1538608856 Rosanna Pritting Family Nurse Practitioner · Brawley, CA NPI 1437664729 Imperial Valley Healthcare District Rural Health Clinic/Center · Brawley, CA NPI 1336944230
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-15.