Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ethan Gregor
Counselor in Oakland, CA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225460702
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Registry record
Entity type Individual (Type 1)
Name Ethan Gregor
Sex Male
Practice address 444 Hegenberger Rd, Oakland, CA, 94621
Phone (510) 562-8225
Enumeration date Aug 6, 2013
Last updated in NPPES Aug 6, 2013
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 Ethan Gregor?
The National Provider Identifier (NPI) for Ethan Gregor is 1225460702, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ethan Gregor practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Dennise Moon Clinical Psychologist · Oakland, CA NPI 1962569186 Seneca Family of Agencies Community/Behavioral Health Agency · Oakland, CA NPI 1457608283 Johanna Rudnick Counselor · Oakland, CA NPI 1700218278 Lighthouse Community Charter Public School Local Education Agency (LEA) · Oakland, CA NPI 1720470214 Ann Martin Center Community/Behavioral Health Agency · Oakland, CA NPI 1801345194
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-06.