Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Nicholas Paul Allan
Clinical Psychologist in Athens, OH · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821756461
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Registry record
Entity type Individual (Type 1)
Name Dr. Nicholas Paul Allan
Sex Male
Practice address 1 Ohio University Dept of, Athens, OH, 45701
Phone (740) 593-0902
Fax (740) 593-4790
Enumeration date Dec 1, 2021
Last updated in NPPES Dec 1, 2021
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License P.08227 (OH) Primary
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 Nicholas Allan?
Nicholas Allan 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-01.