Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Christine Ferriera, AU.D.
Audiologist in Phoenix, AZ · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720592827
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Registry record
Entity type Individual (Type 1)
Name Mary Christine Ferriera
Credential AU.D.
Sex Female
Practice address 2340 E Beardsley Rd Ste 260, Phoenix, AZ, 85024
Phone (602) 802-8240
Fax (602) 802-8245
Enumeration date Nov 28, 2017
Last updated in NPPES Dec 13, 2017
Taxonomy & licenses
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 Mary Ferriera?
Mary Ferriera 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-13.