Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Carolyn L Shertzer, PHD
Psychologist in Lancaster, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518924588
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Registry record
Entity type Individual (Type 1)
Name Mrs. Carolyn L Shertzer
Credential PHD
Sex Female
Practice address 43 N Lime St, Lancaster, PA, 17602
Phone (717) 299-5433
Fax (717) 393-3973
Enumeration date Apr 26, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PS002910L (PA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
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
What is the NPI number for Carolyn Shertzer?
The National Provider Identifier (NPI) for Carolyn Shertzer is 1518924588, a Type 1 (individual) record in the CMS NPPES registry.
Where does Carolyn Shertzer practice?
The practice location on file with NPPES is in Lancaster, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.