Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Edward Castelli, PA-C

Physician Assistant in Chicago, IL · enumerated 2013.

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

National Provider Identifier

1407293756

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Registry record

Entity type Individual (Type 1)

Name Michael Edward Castelli

Credential PA-C

Sex Male

Practice address 737 N Michigan Ave Ste 700, Chicago, IL, 60611

Phone (312) 337-6960

Fax (312) 337-3601

Enumeration date May 28, 2013

Last updated in NPPES Oct 28, 2022

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085005066 (IL) Primary

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 Michael Castelli?

The National Provider Identifier (NPI) for Michael Castelli is 1407293756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Castelli 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 2022-10-28.