Doctor profile · Federal record

Dr. Lon Walder, D.O.

Cardiovascular Disease Physician (CMS: Interventional Cardiology) · Interventional Cardiology Physician · Eagle Pass, TX

  • NPI 1184674822
  • Accepts Medicare
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4018 El Indio Hwy
Eagle Pass, TX 788526690
(830) 872-3460
fax (830) 872-3470
Mailing address
2525 N Veterans Blvd
Eagle Pass, TX 788523302

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
September 11, 2024
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State license (1)
Texas #J3931
Medicaid (4)
TX #1360869-02 · TX #136086909 · TX #1360869-05 · TX #1360869-11

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184674822. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
118
Distinct HCPCS
4
Medicare allowed
$6,494
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 46 45 $8
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 39 36 $66
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 21 16 $167
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing 12 12 $6

In context: peer comparison

Among 2 peers in Eagle Pass Cardiovascular Disease Physician, average services per provider: 99. This provider delivers 1.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
586
Patients
247
Total drug cost
$57,948
Drug Type Claims Patients Total cost
Losartan Potassium Generic 108 42 $2,197
Hydralazine Hcl Generic 99 46 $3,808
Amlodipine Besylate Generic 93 38 $629
Atenolol Generic 83 38 $791
Clonidine Hcl Generic 35 17 $339
Metoprolol Succinate Generic 35 16 $943
Amiodarone Hcl Generic 28 14 $603
Lisinopril Generic 27 12 $360
Carvedilol Generic 25 13 $282
Clopidogrel (Clopidogrel Bisulfate) Brand 21 11 $435

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lon Walder's medical specialty?
Dr. Lon Walder practices Cardiovascular Disease Physician in Eagle Pass, TX.
Where does Dr. Lon Walder practice?
Dr. Lon Walder practices at 4018 El Indio Hwy, Eagle Pass, TX 788526690. Office phone: 8308723460.
What is Dr. Lon Walder's NPI?
Dr. Lon Walder's National Provider Identifier (NPI) is 1184674822, issued by NPPES.
Does Dr. Lon Walder accept Medicare assignment?
Yes. Dr. Lon Walder accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lon Walder commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.