Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leslie Ann Mei, PA-C

Physician Assistant in Lake Forest, IL · enumerated 2019 · practices at Northwestern Medical Faculty Foundation.

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

National Provider Identifier

1194370445

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Registry record

Entity type Individual (Type 1)

Name Leslie Ann Mei

Credential PA-C

Sex Female

Practice address 800 N Westmoreland Rd Ste 100, Lake Forest, IL, 60045

Phone (847) 535-8174

Fax (224) 271-4600

Enumeration date Aug 5, 2019

Last updated in NPPES Jul 17, 2024

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 4797-23 (WI) Secondary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 209007244 (IL) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085008038 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
085008038	Other	IL	STATE LICENSE

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 1194370445 active?

Yes, as of the latest NPPES snapshot, NPI 1194370445 is active (record last updated 2024-07-17).

How do I verify Leslie Mei's NPI record?

Cross-check NPI 1194370445 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Mary Maish Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Lake Forest, IL NPI 1750316774 Michael Mcguire Urology Physician · Lake Forest, IL NPI 1821018185 Jamie Wabich Gastroenterology Physician · Lake Forest, IL NPI 1427324425 Daniel Davila Surgery Physician · Lake Forest, IL NPI 1558637124 Mariana Vigiola Cruz Trauma Surgery Physician · Lake Forest, IL NPI 1104184944 Hina Omar Gastroenterology Physician · Lake Forest, IL NPI 1972846871 Rebecca Litz Nurse Practitioner · Lake Forest, IL NPI 1952803033 Northwestern Medical Faculty Foundation Durable Medical Equipment & Medical Supplies · Lake Forest, IL NPI 1467005520

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-17.