Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Cassandra Marie Mazzacco, AU.D.
Audiologist in Fairfield, CT · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205406246
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Registry record
Entity type Individual (Type 1)
Name Dr. Cassandra Marie Mazzacco
Credential AU.D.
Sex Female
Practice address 1305 Post Rd Ste 302, Fairfield, CT, 06824
Phone (203) 259-4700
Fax (203) 259-0328
Enumeration date Jul 1, 2021
Last updated in NPPES Jul 12, 2022
Taxonomy & licenses
237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 688 (CT) Secondary
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
What is the NPI number for Cassandra Mazzacco?
The National Provider Identifier (NPI) for Cassandra Mazzacco is 1205406246, a Type 1 (individual) record in the CMS NPPES registry.
Where does Cassandra Mazzacco practice?
The practice location on file with NPPES is in Fairfield, CT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-12.