Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Terri Ann Hays, M.A.
Counselor in Santa Ana, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831219716
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Registry record
Entity type Individual (Type 1)
Name Ms. Terri Ann Hays
Credential M.A.
Sex Female
Practice address 1633 E 4th St, Ste. 120, Santa Ana, CA, 92701
Phone (714) 565-2830
Enumeration date Apr 2, 2007
Last updated in NPPES Sep 9, 2008
Taxonomy & licenses
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
What specialty is Terri Hays?
Terri Hays is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-09.