Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ivan Castro, DC
Chiropractor in Pleasanton, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073371191
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Registry record
Entity type Individual (Type 1)
Name Ivan Castro
Credential DC
Sex Male
Practice address 6620 Owens Dr, Pleasanton, CA, 94588
Phone (925) 255-5805
Enumeration date Mar 12, 2024
Last updated in NPPES Mar 12, 2024
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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 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 Ivan Castro?
Ivan Castro is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Intero Chiropractic, A Hsieh Corporation Chiropractor · Pleasanton, CA NPI 1508265547 Fiona Cheung Chiropractor · Pleasanton, CA NPI 1972217206 Andrew Apuya Chiropractor · Pleasanton, CA NPI 1144096033 Christopher Nguyen Chiropractor · Pleasanton, CA NPI 1952169948 Haig Minassian MD A Professional Corporation Integrative Medicine Physician · Pleasanton, CA NPI 1417809815
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-12.