Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Elizabeth June Williamson, D,P,T
Physical Therapist in Oak Park, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265470884
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Registry record
Entity type Individual (Type 1)
Name Mrs. Elizabeth June Williamson
Credential D,P,T
Sex Female
Practice address 610 S Maple Ave, Suite 3500, Oak Park, IL, 60304
Phone (708) 934-7062
Fax (708) 934-7065
Enumeration date Jun 4, 2006
Last updated in NPPES Aug 10, 2009
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 070.015086 (IL) 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
What specialty is Elizabeth Williamson?
Elizabeth Williamson is registered in NPPES with the primary taxonomy of Physical Therapist. 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 2009-08-10.