Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather A Werenski, OT

Occupational Therapist in Oak Brook, IL · enumerated 2018.

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

National Provider Identifier

1790283927

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Registry record

Entity type Individual (Type 1)

Name Heather A Werenski

Credential OT

Sex Female

Practice address 625 Enterprise Dr, Oak Brook, IL, 60523

Phone (630) 575-6250

Fax (630) 575-7450

Enumeration date Jan 23, 2018

Last updated in NPPES Jan 23, 2018

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 056011257 (IL) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Heather Werenski practice?

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

What is the NPI number for Heather Werenski?

The National Provider Identifier (NPI) for Heather Werenski is 1790283927, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-23.