Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Barbara Sigrid Sinclair, PH.D.
Psychologist in Ellsworth, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114976081
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Registry record
Entity type Individual (Type 1)
Name Dr. Barbara Sigrid Sinclair
Credential PH.D.
Sex Female
Practice address 56 Church St, Ellsworth, ME, 04605
Phone (207) 667-8358
Fax (207) 667-8358
Enumeration date May 9, 2006
Last updated in NPPES Jul 9, 2007
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
Where does Barbara Sinclair practice?
The practice location on file with NPPES is in Ellsworth, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Barbara Sinclair?
The National Provider Identifier (NPI) for Barbara Sinclair is 1114976081, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.