Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Brian James Trainor, ND
Naturopath in San Diego, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649877846
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Registry record
Entity type Individual (Type 1)
Name Dr. Brian James Trainor
Credential ND
Sex Male
Practice address 3636 5th Ave Ste 300, San Diego, CA, 92103
Phone (619) 814-5500
Enumeration date Oct 1, 2020
Last updated in NPPES Oct 1, 2020
Taxonomy & licenses
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 Brian Trainor?
The National Provider Identifier (NPI) for Brian Trainor is 1649877846, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brian Trainor practice?
The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-01.