Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Allison L. Baier, PHD
Clinical Psychologist in Boston, MA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821619313
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Registry record
Entity type Individual (Type 1)
Name Dr. Allison L. Baier
Credential PHD
Sex Female
Practice address 150 S Huntington Ave, Boston, MA, 02130
Phone (857) 364-4250
Enumeration date May 6, 2020
Last updated in NPPES Jan 10, 2025
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY10000301 (MA) 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
Is NPI 1821619313 active?
Yes, as of the latest NPPES snapshot, NPI 1821619313 is active (record last updated 2025-01-10).
How do I verify Allison Baier's NPI record?
Cross-check NPI 1821619313 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-10.