NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michelle Dian Lambert

Developmental Therapist in Aurora, IL · enumerated 2025 · practices at Positive Outcomes Inc..

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

National Provider Identifier

1598642423

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michelle Dian Lambert
Sex Female
Practice address Aurora, IL, 60506
Phone (630) 661-7253
Enumeration date Aug 20, 2025
Last updated in NPPES Aug 20, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

222Q00000X Developmental Therapist 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

Where does Michelle Lambert practice?
The practice location on file with NPPES is in Aurora, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michelle Lambert?
The National Provider Identifier (NPI) for Michelle Lambert is 1598642423, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-20.