Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Alison Izer, LSW
Social Worker in York, PA · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1972821155
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ms. Alison Izer
Credential LSW
Sex Female
Practice address 3412 E Market St # D, York, PA, 17402
Phone (717) 840-1681
Fax (717) 840-1676
Enumeration date May 12, 2010
Last updated in NPPES May 12, 2010
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License SW127579 (PA) Primary
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 Alison Izer?
Alison Izer is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-12.