Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Lon Andrew Walder, DO

Individual provider Interventional Cardiology Physician · NPI 1184674822

Lon Andrew Walder, DO is an Interventional Cardiology in Eagle Pass, Texas. Graduated from Oklahoma State University College of Osteopathic Medicine in 1986, 40 years ago. Practices with United Medical Centers, a 24-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
40
Trained at
Oklahoma State University College of Osteopathic Medicine
Licensed in
TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

4018 El Indio Hwy
Eagle Pass, TX 78852-6690
Phone: (830) 872-3460
Fax: (830) 872-3470
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence J3931 (TX)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence J3931 (TX)

Record details

NPI number1184674822
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESSeptember 11, 2024
Certification dateSeptember 11, 2024
Mailing address2525 N Veterans Blvd, Eagle Pass, TX 78852-3302

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERVENTIONAL CARDIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOKLAHOMA STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1986 (40 years in practice)
Group practice United Medical Centers — 24 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare