Doctor profile · Federal record
Dr. Thomas Cahill, MD
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · O Fallon, IL
- NPI 1023128113
- Accepts Medicare
- MIPS 92.6 / 100 · 2023
- 48 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Three Saint Elizabeth Blvd Ste 2800
O Fallon, IL 622691282
(618) 233-6044
fax (833) 973-4218
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 21, 2021
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- Illinois #036-060357
- Medicaid
- IL #036060357
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023128113. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,143
Distinct HCPCS
10
Medicare allowed
$206,330
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 1,329 | 938 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 660 | 362 | $128 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 300 | 291 | $68 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 172 | 77 | $81 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 134 | 125 | $15 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 115 | 108 | $134 | |
93016 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 88 | 87 | $21 | |
93018 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 88 | 87 | $14 | |
78452 |
Nuclear medicine studies of heart muscle at rest and with stress and spect | 57 | 57 | $76 | |
93228 |
Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | 50 | 48 | $26 |
In context: peer comparison
Among 7 peers in O Fallon Cardiovascular Disease Physician, average services per provider: 134. This provider delivers 23× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,854
Patients
896
Total drug cost
$389,999
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 313 | 87 | $5,461 |
| Metoprolol Succinate | Generic | 291 | 94 | $4,843 |
| Carvedilol | Generic | 259 | 75 | $3,077 |
| Lisinopril | Generic | 256 | 83 | $3,088 |
| Amlodipine Besylate | Generic | 234 | 70 | $2,571 |
| Eliquis (Apixaban) | Brand | 233 | 53 | $241,755 |
| Rosuvastatin Calcium | Generic | 230 | 69 | $3,669 |
| Metoprolol Tartrate | Generic | 162 | 49 | $1,303 |
| Losartan Potassium | Generic | 157 | 45 | $1,624 |
| Furosemide | Generic | 153 | 66 | $1,234 |
Frequently asked questions
What is Dr. Thomas Cahill's medical specialty?
Dr. Thomas Cahill practices Cardiovascular Disease Physician in O Fallon, IL.
Where does Dr. Thomas Cahill practice?
Dr. Thomas Cahill practices at Three Saint Elizabeth Blvd Ste 2800, O Fallon, IL 622691282. Office phone: 6182336044.
What is Dr. Thomas Cahill's NPI?
Dr. Thomas Cahill's National Provider Identifier (NPI) is 1023128113, issued by NPPES.
Does Dr. Thomas Cahill accept Medicare assignment?
Yes. Dr. Thomas Cahill accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Cahill commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99214); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306). Source: CMS Medicare Physician & Other Practitioners file.