Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Daniel James Castillo, M.D.

Emergency Medicine Physician in Evanston, IL · enumerated 2008.

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

National Provider Identifier

1629249453

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Registry record

Entity type Individual (Type 1)

Name Dr. Daniel James Castillo

Credential M.D.

Sex Male

Practice address 2650 Ridge Ave Ste G909, Evanston, IL, 60201

Phone (847) 570-2111

Enumeration date Mar 19, 2008

Last updated in NPPES Mar 22, 2018

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 125047907 (IL) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036120592 (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 Daniel Castillo practice?

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

What is the NPI number for Daniel Castillo?

The National Provider Identifier (NPI) for Daniel Castillo is 1629249453, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-22.