Doctor profile · Federal record
Dr. Regina Chiu, M.D.
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · O Fallon, IL
- NPI 1043272693
- Accepts Medicare
- MIPS 92.6 / 100 · 2023
- 27 yrs in practice
- Female
- 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
- April 2006 — 20 yrs on file
- Profile last updated
- December 20, 2021
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- Illinois #036118748
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043272693. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,329
Distinct HCPCS
10
Medicare allowed
$195,905
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 737 | 590 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 470 | 384 | $127 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 319 | 317 | $68 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 179 | 174 | $14 | |
93296 |
Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | 165 | 65 | $21 | |
93294 |
Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 160 | 65 | $30 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 123 | 68 | $81 | |
93016 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 118 | 118 | $21 | |
85610 |
Blood test, clotting time | 117 | 12 | $4 | |
93018 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 117 | 117 | $14 |
In context: peer comparison
Among 7 peers in O Fallon Cardiovascular Disease Physician, average services per provider: 134. This provider delivers 25× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,839
Patients
1,197
Total drug cost
$561,326
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 620 | 192 | $10,900 |
| Lisinopril | Generic | 384 | 119 | $3,350 |
| Eliquis (Apixaban) | Brand | 370 | 71 | $360,124 |
| Amlodipine Besylate | Generic | 365 | 120 | $4,235 |
| Atorvastatin Calcium | Generic | 339 | 116 | $5,285 |
| Furosemide | Generic | 312 | 117 | $2,403 |
| Rosuvastatin Calcium | Generic | 249 | 86 | $5,069 |
| Losartan Potassium | Generic | 228 | 78 | $4,034 |
| Metoprolol Tartrate | Generic | 169 | 53 | $1,609 |
| Isosorbide Mononitrate ER (Isosorbide Mononitrate) | Brand | 153 | 44 | $3,603 |
Hospital affiliations
Frequently asked questions
What is Dr. Regina Chiu's medical specialty?
Dr. Regina Chiu practices Cardiovascular Disease Physician in O Fallon, IL.
Where does Dr. Regina Chiu practice?
Dr. Regina Chiu practices at Three Saint Elizabeth Blvd Ste 2800, O Fallon, IL 622691282. Office phone: 6182336044.
What is Dr. Regina Chiu's NPI?
Dr. Regina Chiu's National Provider Identifier (NPI) is 1043272693, issued by NPPES.
Does Dr. Regina Chiu accept Medicare assignment?
Yes. Dr. Regina Chiu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Regina Chiu 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.