NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Renee Marie Thieman, COTA

Occupational Therapy Assistant in Glenview, IL · enumerated 2008.

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

National Provider Identifier

1679747836

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Renee Marie Thieman
Credential COTA
Sex Female
Practice address 3707 West Lake Avenue, Suite 200, Glenview, IL, 60026
Phone (847) 998-1188
Enumeration date Apr 18, 2008
Last updated in NPPES Apr 18, 2008

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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

What specialty is Renee Thieman?
Renee Thieman is registered in NPPES with the primary taxonomy of Occupational Therapy Assistant. 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 2008-04-18.