Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Valerie Guzzo, AU.D.
Audiologist in Orange, CA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528319803
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Registry record
Entity type Individual (Type 1)
Name Valerie Guzzo
Credential AU.D.
Sex Female
Practice address 1301 W Providence Ave, Orange, CA, 92868
Phone (714) 639-4990
Fax (714) 744-3841
Enumeration date Sep 26, 2012
Last updated in NPPES Mar 4, 2019
Taxonomy & licenses
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders.
About the AUD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1528319803 | Medicaid | CA | - |
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 Valerie Guzzo?
Valerie Guzzo 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 → James Townsley Audiologist-Hearing Aid Fitter · Orange, CA NPI 1124013917 Elaine Brewster Speech-Language Pathologist · Orange, CA NPI 1710963673 Lisa Burger Speech-Language Pathologist · Orange, CA NPI 1598742314 Jill Lockwood Audiologist · Orange, CA NPI 1780661017 Talisa Blount Assistive Technology Practitioner Audiologist · Orange, CA NPI 1487632980 Aprille Engalla Audiologist · Orange, CA NPI 1790763118 Kimberly Cira Audiologist · Orange, CA NPI 1861453672 Providence Speech & Hearing Center Speech-Language Pathologist · Orange, CA NPI 1215993704
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-04.