Internal Medicine, Cardiovascular Disease · Corpus Christi, TX
NPI
1003816638
Since 2005
Specialty
Internal Medicine, Cardiovascular Disease
Code 207RC0000X
Group practices
2
Medicare group memberships
Hospitals
2
Hospital affiliations
601 Texan Trl Ste 300
Corpus Christi, TX, 78411
Phone (361) 887-9000
Groups this clinician bills Medicare through
Medicare paid, 2024
$262K
4,672 services
Medicare patients, 2024
994
Average age 75
Drug cost, 2024
$425K
6,620 prescriptions
Company payments, 2025
$580
From 9 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Gregg L Silverman was code 93000 (electrocardiogram), 1,239 times for 747 patients. In total Gregg L Silverman billed 4,672 services in 73 codes, and Medicare paid $262K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-07-12.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 93000 Electrocardiogram | Office | 1,239 | 747 | $9.69 | $12K |
| 99214 Office E&M - Established | Office | 1,101 | 665 | $83.35 | $92K |
| J2785 Injection, regadenoson, 0.1 mg | Office | 236 | 59 | $5.09 | $1,201 |
| 78452 Myocardial Perfusion Scan | Office | 225 | 129 | $141.37 | $32K |
| 93306 Echocardiography (TTE/TEE) | Office | 193 | 193 | $127.85 | $25K |
| 99204 Office E&M - New | Office | 133 | 133 | $107.84 | $14K |
| 93294 External Electrocardiographic Monitoring | Office | 128 | 50 | $20.80 | $2,662 |
| 93880 Duplex Scan - Extracranial Arteries | Office | 123 | 123 | $124.40 | $15K |
| 93015 Electrocardiogram | Office | 118 | 118 | $46.25 | $5,458 |
| 93010 Electrocardiogram | Facility | 118 | 93 | $6.16 | $727 |
| 93297 External Electrocardiographic Monitoring | Office | 116 | 17 | $18.69 | $2,168 |
| A9500 Technetium tc-99m sestamibi, diagnostic, per study dose | Office | 100 | 99 | $176.28 | $18K |
| 99232 Hospital E&M - Subsequent | Facility | 79 | 31 | $59.69 | $4,715 |
| 93306 Echocardiography (TTE/TEE) | Facility | 73 | 70 | $50.37 | $3,677 |
| 93246 Electrocardiogram | Office | 57 | 55 | $8.38 | $478 |
By year: 2022 $270K for 4,301 services; 2023 $297K for 4,602 services; 2024 $262K for 4,672 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 85610 Clinical Chemistry | 46 | 20 | $4.20 | $193 |
Medicare prescription drug claims, 2024
In 2024, the drug Gregg L Silverman prescribed most often to Medicare patients was Metoprolol Succinate, with 600 prescriptions and refills. In total Gregg L Silverman wrote 6,620 Medicare prescriptions that cost $425K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Metoprolol Succinate Generic | 600 | 1,415 | 187 | $7,112 |
| Amlodipine Besylate Generic | 494 | 1,085 | 134 | $2,421 |
| Losartan Potassium Generic | 437 | 1,072 | 126 | $3,826 |
| Nifedipine Er Nifedipine | 388 | 833 | 97 | $8,690 |
| Digoxin Generic | 301 | 683 | 92 | $6,731 |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | 281 | 515 | 79 | $7,284 |
| Atorvastatin Calcium Generic | 277 | 713 | 87 | $1,904 |
| Clopidogrel Clopidogrel Bisulfate | 266 | 687 | 84 | $2,721 |
| Furosemide Generic | 256 | 650 | 90 | $1,415 |
| Eliquis Apixaban | 221 | 317 | 49 | $182K |
| Metoprolol Tartrate Generic | 194 | 535 | 60 | $1,456 |
| Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide | 172 | 434 | 47 | $1,684 |
| Carvedilol Generic | 169 | 439 | 51 | $1,492 |
| Triamterene-Hydrochlorothiazid Triamterene/Hydrochlorothiazid | 156 | 343 | 55 | $1,328 |
| Diltiazem 24hr Er Diltiazem Hcl | 149 | 303 | 45 | $3,743 |
Brand drugs: 670 claims; generic drugs: 5,950 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Gregg L Silverman $580 ($580 in general payments such as food, travel and fees) from 9 companies. The largest payer was Medtronic, Inc. with $147.
| Company | Payments | Amount |
|---|---|---|
| Medtronic, Inc. MDT | 8 | $147 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 4 | $77.55 |
| Recor Medical Inc | 1 | $70.31 |
| Abbott Laboratories ABT | 3 | $62.55 |
| Philips North America LLC PHG | 1 | $60.65 |
| Pfizer Inc. PFE | 3 | $56.97 |
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 2 | $36.59 |
| CVRx, Inc. CVRX | 2 | $35.95 |
| Amgen Inc. AMGN | 2 | $32.85 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.