Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Greer Grierson Melidonis

Psychologist in Hillsborough, NJ · enumerated 2006 · practices at Greer G. Melidonis Psy.D. LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1235240607

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Registry record

Entity type Individual (Type 1)

Name Dr. Greer Grierson Melidonis

Sex Female

Practice address 105 Omni Dr, Center for Collaborative Psychology, Hillsborough, NJ, 08844

Phone (908) 359-2466

Fax (908) 359-0746

Enumeration date Aug 31, 2006

Last updated in NPPES Jul 16, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License SI03317 (NJ) Primary

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.

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Frequently asked questions

Is NPI 1235240607 active?

Yes, as of the latest NPPES snapshot, NPI 1235240607 is active (record last updated 2007-07-16).

How do I verify Greer Melidonis's NPI record?

Cross-check NPI 1235240607 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Yuange Hu Psychiatry Physician · Hillsborough, NJ NPI 1649290180 Elio Arrechea Psychologist · Hillsborough, NJ NPI 1548375173 Greer G. Melidonis Psy.D. LLC Psychologist · Hillsborough, NJ NPI 1215090600

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-16.