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Edit this profileAt a glance
- 1800 Rockaway Ave, Suite 206A, Hewlett, NY 11557
About Dr. Diener
Marc J. Diener, PhD is a psychologist practicing in Hewlett, NY. Marc is also listed as specializing in psychologist — clinical. This provider record is associated with NPI 1255632337.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (646) 246-1662
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1800 ROCKAWAY AVE SUITE 206A
Hewlett, NY 11557
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 psychologists at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 5 related providers in 1 group
Common questions
What does Marc J. Diener specialize in?
Marc J. Diener is a psychologist in Hewlett, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Marc J. Diener located?
Marc J. Diener is listed at 1800 Rockaway Ave Suite 206A, Hewlett, NY 11557. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Marc J. Diener's phone number?
The number on file is (646) 246-1662. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marc J. Diener?
Marc J. Diener's National Provider Identifier is 1255632337. 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 Marc J. Diener have?
Marc J. Diener has 16+ years experience. Registered with an NPI since 2010. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Marc J. Diener's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marc J. Diener. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.