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Edit this profileAt a glance
- 1111 Grand Ave Ste J, Diamond Bar, CA 91765
About Matthew Grelling
Matthew Grelling, M.A. M.F.T. is a mental health counselor based in Diamond Bar, CA. The provider's National Provider Identifier (NPI) is 1831239037.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (951) 505-0019
- Email not available
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Practice Locations
1111 GRAND AVE STE J
Diamond Bar, CA 91765
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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 does Matthew Grelling specialize in?
Matthew Grelling is a mental health counselor in Diamond Bar, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Matthew Grelling located?
Matthew Grelling is listed at 1111 Grand Ave Ste J, Diamond Bar, CA 91765. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Matthew Grelling's phone number?
The number on file is (951) 505-0019. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Matthew Grelling?
Matthew Grelling's National Provider Identifier is 1831239037. 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 much experience does Matthew Grelling have?
Matthew Grelling has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Matthew Grelling's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Matthew Grelling. If this is you, claiming it is free.
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