Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Calvin Javier, MD

Diagnostic Radiology Physician in Chicago, IL · enumerated 2007.

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

National Provider Identifier

1366585366

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Registry record

Entity type Individual (Type 1)

Name Calvin Javier

Credential MD

Sex Male

Practice address 2701 W 68th St, Chicago, IL, 60629

Phone (773) 884-9000

Fax (314) 631-4672

Enumeration date Feb 15, 2007

Last updated in NPPES Apr 26, 2021

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 036117152 (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

What is the NPI number for Calvin Javier?

The National Provider Identifier (NPI) for Calvin Javier is 1366585366, a Type 1 (individual) record in the CMS NPPES registry.

Where does Calvin Javier practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-26.