Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Heather Ann Koopmann, AU.D.
Audiologist in Glen Ellyn, IL · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013596485
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Registry record
Entity type Individual (Type 1)
Name Heather Ann Koopmann
Credential AU.D.
Sex Female
Practice address 430 Pennsylvania Ave Ste 330, Glen Ellyn, IL, 60137
Phone (630) 545-7650
Fax (630) 545-7839
Enumeration date Apr 5, 2021
Last updated in NPPES May 4, 2023
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147.001829 (IL) 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
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 Heather Koopmann?
Heather Koopmann 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 → Kevin Hulett Otolaryngology Physician · Glen Ellyn, IL NPI 1952341257 Kelly Bramlette Physician Assistant · Glen Ellyn, IL NPI 1497910814 Laura Weese Audiologist · Glen Ellyn, IL NPI 1326274069 Kayla Gettemy Audiologist · Glen Ellyn, IL NPI 1205711504 Leslie Castillo Audiologist · Glen Ellyn, IL NPI 1821976184
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-04.