Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Aynsley Guertin, MSED, BCBA
Behavior Analyst in Charlestown, MA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548872898
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Registry record
Entity type Individual (Type 1)
Name Aynsley Guertin
Credential MSED, BCBA
Sex Female
Practice address 529 Main St Ste 231, Charlestown, MA, 02129
Phone (617) 910-1414
Enumeration date Aug 18, 2020
Last updated in NPPES Feb 14, 2023
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 003242712A (GA) Secondary
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-20-44030 Secondary
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 3435 (MA) 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
How do I verify Aynsley Guertin's NPI record?
Cross-check NPI 1548872898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1548872898 active?
Yes, as of the latest NPPES snapshot, NPI 1548872898 is active (record last updated 2023-02-14).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-14.