David Zweiback
NPI 1457369233ActiveIndividual· Internal Medicine· Hilton Head Island, SC
Internal Medicine in Hilton Head Island, South Carolina, trained at Philadelphia College of Osteopathic Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $491,831 for 2,765 claims, against $74,152 paid for services in 2024. Lilly USA, LLC was the largest of 13 companies reporting payments in 2025, $446.43 in all, mostly food and beverage.
Overview
| NPI | 1457369233 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 4, 2006 |
| Last updated in NPPES | Oct 24, 2025 |
| Certified by provider | Oct 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 93894DO | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (PA); Practitioner - Internal Medicine (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 94 |
|---|---|
| Services billed | 1,341 across 31 procedure codes |
| Paid by Medicare | $74,152 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,765 · 3,607 30-day fills |
|---|---|
| Patients | 104 |
| Total drug cost | $491,831 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Dr. Paul Long, LLCHilton Head Island, SC · 2 clinicians
Hospital affiliations
- Beaufort County Memorial HospitalBeaufort, SC
- Candler HospitalSavannah, GA
- Coastal Carolina HospitalHardeeville, SC
- Novant Health Hilton Head Medical CenterHilton Head Island, SC
Other facilities
- Aveanna Home HealthHome health agency · Hardeeville, SC
- Centerwell Home HealthHome health agency · Walterboro, SC
- Pruitthealth Home Health-Low CountryHome health agency · Bluffton, SC
Industry payments (Open Payments)
- 2025$446.43 · 23 payments from 13 companies
- 2024$503.64 · 26 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $71.17 | 4 |
| Fidia Pharma USA Inc. | $67.46 | 3 |
| Novartis Pharmaceuticals Corporation | $66.31 | 3 |
| Novo Nordisk Inc | $43.77 | 2 |
| Gilead Sciences, Inc. | $42.34 | 2 |
What the 2025 payments were for
- Food and Beverage$446.43 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 internal medicine physicians in Hilton Head Island · All internal medicine physicians in South Carolina