Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Harvey Curtis Nicholson III, PH.D.
Clinical Psychologist in Lititz, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639166929
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Registry record
Entity type Individual (Type 1)
Name Dr. Harvey Curtis Nicholson III
Credential PH.D.
Sex Male
Practice address 57 E Main St, Lititz, PA, 17543
Phone (717) 627-2857
Fax (717) 627-4455
Enumeration date Oct 1, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS-004493-L (PA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PS-004493-L | Other | PA | PSYCHOLOGY LICENSE |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Harvey Nicholson III?
Harvey Nicholson III is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.