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

Jennifer Erin Gregg, LCSW

Clinical Social Worker in Glencoe, IL · enumerated 2020.

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

National Provider Identifier

1881234979

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Registry record

Entity type Individual (Type 1)

Name Jennifer Erin Gregg

Credential LCSW

Sex Female

Practice address Glencoe, IL, 60022

Phone (847) 835-1770

Enumeration date Jan 7, 2020

Last updated in NPPES Jan 7, 2020

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149010643 (IL) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
G62042576829	Other	IL	BLUE CROSS BLUE SHIELD

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 1881234979 active?

Yes, as of the latest NPPES snapshot, NPI 1881234979 is active (record last updated 2020-01-07).

How do I verify Jennifer Gregg's NPI record?

Cross-check NPI 1881234979 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-07.