NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ronaldo Esau Leon, OD

Optometrist in Amarillo, TX · enumerated 2021.

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

National Provider Identifier

1124619440

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Ronaldo Esau Leon
Credential OD
Sex Male
Practice address 5221 S Coulter St, Amarillo, TX, 79119
Phone (806) 358-3594
Enumeration date Jan 29, 2021
Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 10272T (TX) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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 specialty is Ronaldo Leon?
Ronaldo Leon is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.