Neven Hadzijahic, MD
NPI 1427054915ActiveIndividual· Internal Medicine, Gastroenterology· Charleston, SC
Internal Medicine, Gastroenterology (MD) with Charleston Gastroenterology Specialists, practicing in Charleston, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $778,085 for 1,893 claims, against $150,306 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $1,338 in all, mostly food and beverage. Lists Bon Secours-St Francis Xavier Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1427054915 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 21, 2005 |
| Last updated in NPPES | May 7, 2020 |
| Certified by provider | May 7, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 19503 | 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 - Gastroenterology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 692 |
|---|---|
| Services billed | 1,343 across 51 procedure codes |
| Paid by Medicare | $150,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,893 · 3,280 30-day fills |
|---|---|
| Patients | 769 |
| Total drug cost | $778,085 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Charleston Gastroenterology SpecialistsCharleston, SC · 49 clinicians
Hospital affiliations
- Bon Secours-St Francis Xavier HospitalCharleston, SC
- Mount Pleasant HospitalMount Pleasant, SC
- Roper HospitalCharleston, SC
- Roper St Francis Hospital-Berkeley IncSummerville, SC
- Trident Medical CenterCharleston, SC
Industry payments (Open Payments)
- 2025$1,338 · 67 payments from 15 companies
- 2024$1,079 · 53 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $384.60 | 21 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $143.39 | 10 |
| Phathom Pharmaceuticals, Inc. | $137.26 | 7 |
| Genzyme Corporation | $122.82 | 4 |
| Ardelyx, Inc. | $79.18 | 3 |
What the 2025 payments were for
- Food and Beverage$1,338 · 67 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 63 gastroenterologists in Charleston · All gastroenterologists in South Carolina