Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Ludwig, PT, DPT

Physical Therapist in Oak Lawn, IL · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902276348

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Registry record

Entity type Individual (Type 1)

Name Catherine Ludwig

Credential PT, DPT

Sex Female

Practice address 4440 W 95th St, Oak Lawn, IL, 60453

Phone (708) 684-8000

Enumeration date Sep 28, 2015

Last updated in NPPES Sep 28, 2015

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 070.021676 (IL) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

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.

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Frequently asked questions

What is the NPI number for Catherine Ludwig?

The National Provider Identifier (NPI) for Catherine Ludwig is 1902276348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Ludwig practice?

The practice location on file with NPPES is in Oak Lawn, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-28.