NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Holtz Psychological Services, PC

Psychologist in Melville, NY · enumerated 2007 · authorized official Fred Holtz, President.

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

National Provider Identifier

1871781401

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Holtz Psychological Services, PC
Practice address 20 Broadhollow Rd, Suite 2004, Melville, NY, 11747
Phone (631) 427-6669
Fax (631) 427-6669
Enumeration date Oct 9, 2007
Last updated in NPPES Mar 11, 2008

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers · License 010194-1 (NY) Primary

Authorized official

Name Fred Holtz
Title President
Phone (631) 427-6669

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-03-11. Verify at npiregistry.cms.hhs.gov.
Where is Holtz Psychological Services, PC located?
The practice location on file with NPPES is in Melville, NY.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-11.