Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Laura Beth Marx, AU.D.
Audiologist in Mchenry, IL · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649527854
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Registry record
Entity type Individual (Type 1)
Name Laura Beth Marx
Credential AU.D.
Sex Female
Practice address 5400 W Elm St, Ste 205, Mchenry, IL, 60050
Phone (815) 344-6200
Fax (847) 741-8694
Enumeration date Aug 7, 2012
Last updated in NPPES Dec 1, 2021
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147.001580 (IL) Secondary
237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 147.001580 (IL) Secondary
237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 706-156 (WI) Secondary
237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License A.01813 (OH) Secondary
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 706-156 (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
What specialty is Laura Marx?
Laura Marx is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-01.