Doctor profile · Federal record
Dr. James Maddux, MD
Interventional Cardiology Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Missoula, MT
- NPI 1942237326
- Accepts Medicare
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
500 W Broadway St, Suite 320
Missoula, MT 598024003
(406) 329-5615
fax (406) 329-5606 - Additional location
-
1200 Westwood Dr
Hamilton, MT 598402345
(406) 375-4665 - Additional location
-
435 S Crystal St Ste 240
Butte, MT 597011523
(406) 496-3660
fax (406) 496-3677 - Mailing address
-
Po Box 12
Liberty Lake, WA 990190012
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- September 23, 2025
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RI0011X — NUCC code
- State license (1)
- Montana #MED-PHYS-LIC-10525
- Medicaid
- MT #0147407
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942237326. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,489
Distinct HCPCS
10
Medicare allowed
$286,758
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 659 | 541 | $8 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 282 | 259 | $12 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 263 | 233 | $126 | |
93280 |
Programming of dual lead pacemaker system | 214 | 121 | $69 | |
93458 |
Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | 146 | 146 | $251 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 112 | 110 | $14 | |
93298 |
Evaluation of cardiac rhythm monitor system, remote up to 30 days | 80 | 12 | $26 | |
G2066 |
Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | 80 | 12 | $63 | |
92928 |
Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | 74 | 54 | $501 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 61 | 61 | $165 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 80. This provider delivers 31× the peer median.Open Payments
Industry payments received
All-time total
$8,587
Transactions
35
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 11 | $7,452.78 | |
| Medtronic, Inc. | 14 | $605.17 | |
| Edwards Lifesciences Corporation | 6 | $440.28 | |
| ShockWave Medical, Inc | 2 | $33.86 | |
| Boston Scientific Corporation | 1 | $31.85 | |
| ASAHI INTECC USA, INC. | 1 | $22.73 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,752
Patients
600
Total drug cost
$90,623
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 323 | 118 | $5,107 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 174 | 73 | $2,981 |
| Metoprolol Succinate | Generic | 169 | 64 | $3,539 |
| Lisinopril | Generic | 167 | 54 | $2,105 |
| Furosemide | Generic | 147 | 42 | $965 |
| Losartan Potassium | Generic | 107 | 29 | $1,649 |
| Rosuvastatin Calcium | Generic | 106 | 31 | $1,700 |
| Metoprolol Tartrate | Generic | 94 | 29 | $739 |
| Carvedilol | Generic | 90 | 26 | $975 |
| Amlodipine Besylate | Generic | 74 | 24 | $834 |
Hospital affiliations
Frequently asked questions
What is Dr. James Maddux's medical specialty?
Dr. James Maddux practices Interventional Cardiology Physician in Missoula, MT.
Where does Dr. James Maddux practice?
Dr. James Maddux practices at 500 W Broadway St, Missoula, MT 598024003. Office phone: 4063295615.
What is Dr. James Maddux's NPI?
Dr. James Maddux's National Provider Identifier (NPI) is 1942237326, issued by NPPES.
Does Dr. James Maddux accept Medicare assignment?
Yes. Dr. James Maddux accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Maddux commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.