Gregg Lee Silverman, M.D.
NPI 1003816638ActiveIndividual· Internal Medicine, Cardiovascular Disease· Corpus Christi, TX
Internal Medicine, Cardiovascular Disease (M.D.) in Corpus Christi, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $424,990 for 6,620 claims, against $262,214 paid for services in 2024. Medtronic, Inc. was the largest of 9 companies reporting payments in 2025, $580.18 in all, mostly food and beverage.
Overview
| NPI | 1003816638 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 26, 2005 |
| Last updated in NPPES | Jul 12, 2024 |
| Certified by provider | Jul 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | J0263 | TX |
| Nuclear Medicine, Nuclear Cardiology | 207UN0901X | J0263 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 994 |
|---|---|
| Services billed | 4,672 across 73 procedure codes |
| Paid by Medicare | $262,214 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,620 · 15,166 30-day fills |
|---|---|
| Patients | 894 |
| Total drug cost | $424,990 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical groups
- Shea Physical Therapy Specialists LLCCorpus Christi, TX · 202 clinicians
- Coastal Cardiology AssociationCorpus Christi, TX · 9 clinicians
Hospital affiliations
- Christus Spohn Hospital Corpus ChristiCorpus Christi, TX
- Corpus Christi Medical Center,theCorpus Christi, TX
Industry payments (Open Payments)
- 2025$580.18 · 26 payments from 9 companies
- 2024$469.26 · 22 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $146.76 | 8 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $77.55 | 4 |
| Recor Medical Inc | $70.31 | 1 |
| Abbott Laboratories | $62.55 | 3 |
| Philips North America LLC | $60.65 | 1 |
What the 2025 payments were for
- Food and Beverage$580.18 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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