Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leonardo Vargas, M.D.

Internal Medicine Physician in Glenview, IL · enumerated 2007.

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

National Provider Identifier

1245385699

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Registry record

Entity type Individual (Type 1)

Name Leonardo Vargas

Credential M.D.

Sex Male

Practice address 1500 Waukegan Rd, Suite 221, Glenview, IL, 60025

Phone (847) 998-0120

Fax (847) 998-0131

Enumeration date Jan 24, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036098800 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Leonardo Vargas practice?

The practice location on file with NPPES is in Glenview, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Leonardo Vargas?

The National Provider Identifier (NPI) for Leonardo Vargas is 1245385699, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.