Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Allison L Singer
School Counselor in Irvine, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1982508974
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Registry record
Entity type Individual (Type 1)
Name Allison L Singer
Practice address 4515 Portola Pkwy, Irvine, CA, 92620
Phone (949) 936-7224
Enumeration date Oct 5, 2026
Last updated in NPPES Oct 5, 2026
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 Allison Singer?
Allison Singer is registered in NPPES with the primary taxonomy of School 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 2026-10-05.