Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary A Geimer Oneil, PHYSICAL THEREPIST
Physical Therapist in Oak Lawn, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053626770
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Registry record
Entity type Individual (Type 1)
Name Mary A Geimer Oneil
Credential PHYSICAL THEREPIST
Sex Female
Practice address 4807 W 95th St, Oak Lawn, IL, 60453
Phone (708) 599-1983
Fax (708) 599-7420
Enumeration date Aug 18, 2010
Last updated in NPPES Mar 27, 2026
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 070.005036 (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 Mary Geimer Oneil?
Mary Geimer Oneil 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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-27.