Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Cynthia Erdos, AUD
Audiologist in Dekalb, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699791863
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Cynthia Erdos
Credential AUD
Sex Female
Practice address 3100 Sycamore Rd, Dekalb, IL, 60115
Phone (815) 753-1481
Fax (815) 753-1664
Enumeration date Jul 14, 2006
Last updated in NPPES Aug 23, 2010
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147001001 (IL) Primary
231HA2400X Assistive Technology Practitioner Audiologist Speech, Language and Hearing Service Providers · License 147-001001 (IL) Secondary
231HA2500X Assistive Technology Supplier Audiologist Speech, Language and Hearing Service Providers · License 047001001 (IL) Secondary
237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 147001001 (IL) 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
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.
What specialty is Cynthia Erdos?
Cynthia Erdos 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.
Other providers at this practice address
Browse all → Danica Billingsly Audiologist · Dekalb, IL NPI 1437168150 Jennifer Junck Pediatric Nurse Practitioner · Dekalb, IL NPI 1245304534 Northern Illinois University Audiologist · Dekalb, IL NPI 1407916836 Janet Olson Speech-Language Pathologist · Dekalb, IL NPI 1962553842 Patricia Tattersall Speech-Language Pathologist · Dekalb, IL NPI 1447396825 Northern Illinois University Physical Therapy Clinic/Center · Dekalb, IL NPI 1194991216 Northern Illinois University-Physical Therapy Physical Therapy Clinic/Center · Dekalb, IL NPI 1821251430 Mary Jo Blaschak Physical Therapist · Dekalb, IL NPI 1538300983
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-23.