Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eileen Duffy

Physical Therapist in Oak Park, IL · enumerated 2016.

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

National Provider Identifier

1871953703

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Eileen Duffy

Sex Female

Practice address 3 Erie Ct, Oak Park, IL, 60302

Phone (708) 383-6200

Enumeration date Mar 4, 2016

Last updated in NPPES Mar 4, 2016

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 070.010467 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1871953703 active?

Yes, as of the latest NPPES snapshot, NPI 1871953703 is active (record last updated 2016-03-04).

How do I verify Eileen Duffy's NPI record?

Cross-check NPI 1871953703 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-04.