Daniel Iseman, MD
NPI 1093777310ActiveIndividual· Internal Medicine, Gastroenterology· Columbia, SC
Internal Medicine, Gastroenterology (MD) in Columbia, South Carolina, trained at University of South Carolina School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $2,991,527 for 1,671 claims, against $108,539 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,723 in all, mostly food and beverage.
Overview
| NPI | 1093777310 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 3, 2006 |
| Last updated in NPPES | Mar 11, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | TL28664 | 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 | 554 |
|---|---|
| Services billed | 1,104 across 27 procedure codes |
| Paid by Medicare | $108,539 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,671 · 2,731 30-day fills |
|---|---|
| Patients | 431 |
| Total drug cost | $2,991,527 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | University of South Carolina School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Carolina Digestive Disease PAColumbia, SC · 7 clinicians
Hospital affiliations
- KershawhealthCamden, SC
- Lexington Medical CenterWest Columbia, SC
- Prisma Health BaptistColumbia, SC
- Prisma Health Richland HospitalColumbia, SC
Industry payments (Open Payments)
- 2025$2,723 · 148 payments from 18 companies
- 2024$2,792 · 165 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $693.14 | 42 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $240.81 | 12 |
| Qol Medical, LLC | $216.68 | 7 |
| Janssen Biotech, Inc. | $213.19 | 14 |
| Takeda Pharmaceuticals U.S.A., Inc. | $202.01 | 11 |
What the 2025 payments were for
- Food and Beverage$2,682 · 146 payments
- Education$40.65 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 49 gastroenterologists in Columbia · All gastroenterologists in South Carolina