Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Kelsey Diane Fitzgibbon Nielsen, AU.D.
Audiologist in Fairfax, VA · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689988669
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Registry record
Entity type Individual (Type 1)
Name Dr. Kelsey Diane Fitzgibbon Nielsen
Credential AU.D.
Sex Female
Practice address 8316 Arlington Blvd, Suite 300, Fairfax, VA, 22031
Phone (703) 573-7606
Enumeration date Aug 2, 2010
Last updated in NPPES Aug 2, 2010
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 2201001432 (VA) 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 Kelsey Nielsen practice?
The practice location on file with NPPES is in Fairfax, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kelsey Nielsen?
The National Provider Identifier (NPI) for Kelsey Nielsen is 1689988669, 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 2010-08-02.