Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Elizabeth Sarah Allen, PHD
Psychologist in Westport, CT · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356600456
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Registry record
Entity type Individual (Type 1)
Name Elizabeth Sarah Allen
Credential PHD
Sex Female
Practice address 6 Pamela Pl, Westport, CT, 06880
Phone (203) 429-4620
Enumeration date May 9, 2012
Last updated in NPPES Feb 21, 2026
Taxonomy & licenses
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 Elizabeth Allen?
The National Provider Identifier (NPI) for Elizabeth Allen is 1356600456, a Type 1 (individual) record in the CMS NPPES registry.
Where does Elizabeth Allen practice?
The practice location on file with NPPES is in Westport, CT. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-21.