Nathan Joseph Shores, M.D.
NPI 1417173378ActiveIndividual· Internal Medicine, Gastroenterology· Charleston, SC
Internal Medicine, Gastroenterology (M.D.) in Charleston, South Carolina, trained at Medical University of South Carolina College of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $1,054,021 for 2,085 claims, against $143,907 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 17 companies reporting payments in 2025, $44,327 in all, mostly speaking and faculty fees.
Overview
| NPI | 1417173378 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 18, 2007 |
| Last updated in NPPES | Mar 18, 2020 |
| Certified by provider | Mar 18, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 36384 | SC |
| Internal Medicine | 207R00000X | 20070312 | NC |
| Internal Medicine, Gastroenterology | 207RG0100X | MD.204530 | LA |
| Internal Medicine, Transplant Hepatology | 207RT0003X | MD.204530 | LA |
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 | 691 |
|---|---|
| Services billed | 1,390 across 48 procedure codes |
| Paid by Medicare | $143,907 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,085 · 4,158 30-day fills |
|---|---|
| Patients | 539 |
| Total drug cost | $1,054,021 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Medical University of South Carolina College of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Gastroenterology |
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$44,327 · 87 payments from 17 companies
- 2024$14,646 · 57 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $32,185 | 21 |
| Abbvie Inc. | $11,334 | 26 |
| Phathom Pharmaceuticals, Inc. | $94.33 | 5 |
| Aimmune Therapeutics, Inc. | $76.13 | 4 |
| Regeneron Healthcare Solutions, Inc. | $71.91 | 3 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$40,920 · 15 payments
- Food and Beverage$2,084 · 70 payments
- Travel and Lodging$1,323 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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