Doctor profile · Federal record
Dr. David Gregg, MD
Adult Congenital Heart Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Charleston, SC
- NPI 1265540264
- Accepts Medicare
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
171 Ashley Ave
Charleston, SC 294250001
(843) 792-1414 - Mailing address
-
Po Box 751461
Charlotte, NC 282751461
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- October 21, 2020
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RA0002X — NUCC code
- State licenses (2)
- South Carolina #29235 · South Carolina #TL29235
- Medicaid
- SC #292356
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265540264. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,884
Distinct HCPCS
10
Medicare allowed
$113,651
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 898 | 790 | $8 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 438 | 434 | $65 | |
93325 |
Ultrasound of heart with color-depicted blood flow, rate and valve function | 241 | 213 | $3 | |
93308 |
Ultrasound of heart, follow-up | 170 | 133 | $24 | |
93320 |
Ultrasound of heart blood flow, valves and chambers | 168 | 166 | $17 | |
93356 |
Heart muscle strain imaging | 151 | 149 | $11 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 114 | 79 | $120 | |
93312 |
Ultrasound of heart with probe in esophagus, with report | 113 | 113 | $101 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 96 | 71 | $92 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 84 | 84 | $180 |
In context: peer comparison
Among 1 peers in Charleston Adult Congenital Heart Disease Physician, average services per provider: 144. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$765
Transactions
5
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 2 | $706.30 | |
| Boston Scientific Corporation | 3 | $58.79 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
631
Patients
154
Total drug cost
$244,947
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Losartan Potassium | Generic | 81 | 23 | $762 |
| Metoprolol Succinate | Generic | 80 | 23 | $1,753 |
| Spironolactone | Generic | 74 | 19 | $1,113 |
| Metoprolol Tartrate | Generic | 64 | 14 | $550 |
| Atorvastatin Calcium | Generic | 60 | 21 | $898 |
| Eliquis (Apixaban) | Brand | 51 | 14 | $65,293 |
| Amlodipine Besylate | Generic | 48 | 18 | $425 |
| Furosemide | Generic | 31 | 11 | $190 |
| Carvedilol | Generic | 27 | 11 | $433 |
| Ambrisentan | Generic | 25 | 0 | $142,012 |
Hospital affiliations
Frequently asked questions
What is Dr. David Gregg's medical specialty?
Dr. David Gregg practices Adult Congenital Heart Disease Physician in Charleston, SC.
Where does Dr. David Gregg practice?
Dr. David Gregg practices at 171 Ashley Ave, Charleston, SC 294250001. Office phone: 8437921414.
What is Dr. David Gregg's NPI?
Dr. David Gregg's National Provider Identifier (NPI) is 1265540264, issued by NPPES.
Does Dr. David Gregg accept Medicare assignment?
Yes. Dr. David Gregg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Gregg 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); Ultrasound of heart with color-depicted blood flow, rate and valve function (HCPCS 93325). Source: CMS Medicare Physician & Other Practitioners file.