Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mandy B Theisen, AU.D., CCC-A
Audiologist in Boston, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164589057
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Registry record
Entity type Individual (Type 1)
Name Dr. Mandy B Theisen
Credential AU.D., CCC-A
Sex Female
Practice address 243 Charles St, Audiology Department, Boston, MA, 02114
Phone (617) 573-3266
Fax (617) 573-3023
Enumeration date Jan 2, 2007
Last updated in NPPES Nov 4, 2008
Taxonomy & licenses
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 Mandy Theisen 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 Mandy Theisen?
The National Provider Identifier (NPI) for Mandy Theisen is 1164589057, 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 2008-11-04.