Christopher Nissen Barrilleaux, MD
NPI 1639174881ActiveIndividual· Internal Medicine, Gastroenterology· Kenner, LA
Internal Medicine, Gastroenterology (MD) in Kenner, Louisiana, trained at Tulane University School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $181,145 for 399 claims, against $23,114 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $256.41 in all, mostly food and beverage.
Overview
| NPI | 1639174881 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 15, 2005 |
| Last updated in NPPES | Jul 18, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 015759 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 122 |
|---|---|
| Services billed | 220 across 30 procedure codes |
| Paid by Medicare | $23,114 |
Part D prescriptions in 2024
| Prescriptions (claims) | 399 · 591 30-day fills |
|---|---|
| Patients | 180 |
| Total drug cost | $181,145 |
| Generic share | 61% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Administrators of the Tulane Educational FundNew Orleans, LA · 393 clinicians
- Crescent City Physicians IncMetairie, LA · 154 clinicians
Hospital affiliations
- Centura Health-St Anthony HospitalLakewood, CO
- East Jefferson General HospitalMetairie, LA
- Touro InfirmaryNew Orleans, LA
- University Medical Center New OrleansNew Orleans, LA
Industry payments (Open Payments)
- 2025$256.41 · 21 payments from 4 companies
- 2024$552.78 · 35 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $198.29 | 18 |
| Ardelyx, Inc. | $23.00 | 1 |
| Gilead Sciences, Inc. | $17.63 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $17.49 | 1 |
What the 2025 payments were for
- Food and Beverage$256.41 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Kenner
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All Internal Medicine, Gastroenterology providers in Louisiana →