NPI Portal NPI Lookup & Verification

Mr. David Omar Del Castillo

Mr. David Omar Del Castillo is a Contractor provider (Contractor) practicing in Austin, TX, registered in the NPPES registry with NPI 1255757779 since 2014.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1255757779
Entity type Individual (Type 1)
Name Mr. David Omar Del Castillo
Sex Male
Practice address Austin, TX, 78728
Phone 5127637704
Enumeration date 2014-03-07
Last updated in NPPES 2014-03-07

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
171W00000X Contractor Primary 1862056 TX
Copy-ready billing details
Provider: David Del Castillo
NPI: 1255757779
Taxonomy: 171W00000X (Contractor)
Address: Austin, TX, 78728

Verify this record

Cross-check NPI 1255757779 against the authoritative CMS record: view Mr. David Omar Del Castillo on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is David Del Castillo?
David Del Castillo is registered in NPPES with the primary taxonomy of Contractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-03-07.