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Lon Andrew Walder, D.O.

Cardiovascular Disease Physician in Eagle Pass, TX · enumerated 2006 · practices at United Medical Centers.

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

National Provider Identifier

1184674822

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Registry record

Entity type Individual (Type 1)
Name Lon Andrew Walder
Credential D.O.
Sex Male
Practice address 4018 El Indio Hwy, Eagle Pass, TX, 78852
Phone (830) 872-3460
Fax (830) 872-3470
Enumeration date May 11, 2006
Last updated in NPPES Sep 11, 2024

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License J3931 (TX) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License J3931 (TX) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
1360869-02 Medicaid TX -
4376993 Other TX AETNA PROVIDER ID
136086909 Medicaid TX -
1360869-05 Medicaid TX -
1360869-11 Medicaid TX -
86462K Other TX BCBS

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.

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Frequently asked questions

What is the NPI number for Lon Walder?
The National Provider Identifier (NPI) for Lon Walder is 1184674822, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lon Walder practice?
The practice location on file with NPPES is in Eagle Pass, TX. 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 2024-09-11.