Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Edward O Castillo

Electroneurodiagnostic Specialist/Technologist in Richardson, TX · enumerated 2010 · practices at Neurologic Diagnostic Labs.

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

National Provider Identifier

1568775393

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Registry record

Entity type Individual (Type 1)

Name Edward O Castillo

Sex Male

Practice address Richardson, TX, 75081

Phone (972) 859-0378

Enumeration date Jul 21, 2010

Last updated in NPPES Jul 28, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

246ZE0600X Electroneurodiagnostic Specialist/Technologist Technologists, Technicians & Other Technical Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
752251976	Other	TX	TAX ID

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 Edward Castillo practice?

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

What is the NPI number for Edward Castillo?

The National Provider Identifier (NPI) for Edward Castillo is 1568775393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Neurologic Diagnostic Labs Electroneurodiagnostic Specialist/Technologist · Richardson, TX NPI 1356655609

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-28.