Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellyn M Szewczyk, AU.D.
Audiologist in Milwaukee, WI · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306156021
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Registry record
Entity type Individual (Type 1)
Name Ellyn M Szewczyk
Credential AU.D.
Sex Female
Practice address 2885 N Mayfair Rd, Milwaukee, WI, 53222
Phone (414) 771-6780
Fax (414) 238-2424
Enumeration date Oct 15, 2010
Last updated in NPPES Nov 3, 2016
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 544-156 (WI) 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 Ellyn Szewczyk practice?
The practice location on file with NPPES is in Milwaukee, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ellyn Szewczyk?
The National Provider Identifier (NPI) for Ellyn Szewczyk is 1306156021, 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 2016-11-03.