Andrew Caperton Nelson, M.D.
NPI 1558336164ActiveIndividual· Internal Medicine, Gastroenterology· Baton Rouge, LA
Internal Medicine, Gastroenterology (M.D.) in Baton Rouge, Louisiana, trained at University of Texas Medical School at Houston (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $242,379 for 2,010 claims, against $161,529 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $182.47 in all, mostly food and beverage.
Overview
| NPI | 1558336164 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 17, 2006 |
| Last updated in NPPES | Nov 7, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 12177R | 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 (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 440 |
|---|---|
| Services billed | 7,535 across 53 procedure codes |
| Paid by Medicare | $161,529 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,010 · 3,781 30-day fills |
|---|---|
| Patients | 639 |
| Total drug cost | $242,379 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Gastroenterology |
Medical groups
- Texas Digestive Disease Consultants, PLLCFlower Mound, TX · 608 clinicians
- Lsuhn Billing LLCLafayette, LA · 206 clinicians
Hospital affiliations
- Baton Rouge General Medical CenterBaton Rouge, LA
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA
Industry payments (Open Payments)
- 2025$182.47 · 11 payments from 4 companies
- 2024$298.25 · 27 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $86.30 | 5 |
| Genzyme Corporation | $53.23 | 3 |
| Pfizer Inc. | $28.18 | 2 |
| Gilead Sciences, Inc. | $14.76 | 1 |
What the 2025 payments were for
- Food and Beverage$182.47 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 gastroenterologists in Baton Rouge · All gastroenterologists in Louisiana