Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anna Keenan, AU.D
Audiologist in Boston, MA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538881651
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Registry record
Entity type Individual (Type 1)
Name Anna Keenan
Credential AU.D
Sex Female
Practice address 243 Charles St, Boston, MA, 02114
Phone (617) 573-3266
Enumeration date Sep 15, 2022
Last updated in NPPES Nov 7, 2023
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License AUD100070 (MA) Primary
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders.
About the AUD 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 Anna Keenan practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Anna Keenan?
The National Provider Identifier (NPI) for Anna Keenan is 1538881651, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-07.