Are you Gregory L. Hagen? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1825 E Thelborn St, West Covina, CA 91791
About Gregory Hagen
Listed in the NPI registry as an addiction & substance abuse counselor, Gregory L. Hagen practices in West Covina, CA. NPI 1205689338 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (626) 915-3844
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1825 E THELBORN ST
West Covina, CA 91791
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other addiction & substance abuse counselors at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Gregory L. Hagen's specialty?
Gregory L. Hagen is an addiction & substance abuse counselor in West Covina, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Gregory L. Hagen?
Gregory L. Hagen is listed at 1825 E Thelborn St, West Covina, CA 91791. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Gregory L. Hagen?
The number on file is (626) 915-3844. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Gregory L. Hagen's NPI number?
Gregory L. Hagen's National Provider Identifier is 1205689338. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Gregory L. Hagen been practicing?
Gregory L. Hagen has 2+ years experience. Registered with an NPI since 2024. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Gregory L. Hagen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory L. Hagen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.