Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Peggy Wingo Ph.D., LLC

Clinical Psychologist in Libertyville, IL · enumerated 2007 · authorized official Peggy Wingo, Clinical Psychologist.

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

National Provider Identifier

1649302050

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Registry record

Entity type Organization (Type 2)

Legal business name Peggy Wingo Ph.D., LLC

Practice address 1248 American Way, Libertyville, IL, 60048

Phone (847) 691-7533

Fax (224) 433-6998

Enumeration date Mar 12, 2007

Last updated in NPPES Apr 24, 2017

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071-004959 (IL) Primary

Authorized official

Name Peggy Wingo

Title Clinical Psychologist

Phone (847) 691-7533

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 is Peggy Wingo Ph.D., LLC located?

The practice location on file with NPPES is in Libertyville, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-04-24. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-24.