Ryan Nathan Chauvin, MD
NPI 1417158536ActiveIndividual· Internal Medicine, Gastroenterology· Baton Rouge, LA
Internal Medicine, Gastroenterology (MD) with Texas Digestive Disease Consultants, PLLC and 1 other group, practicing in Baton Rouge, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $495,227 for 1,425 claims, against $125,514 paid for services in 2024. Abbvie Inc. was the largest of 7 companies reporting payments in 2025, $613.99 in all, mostly food and beverage. Lists Baton Rouge General Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1417158536 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 29, 2007 |
| Last updated in NPPES | Nov 7, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD 202307 | LA |
| Internal Medicine | 207R00000X | 202307 | LA |
| Internal Medicine | 207R00000X | MD.202307 | 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 (IN); Practitioner - Gastroenterology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 342 |
|---|---|
| Services billed | 4,527 across 56 procedure codes |
| Paid by Medicare | $125,514 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,425 · 2,344 30-day fills |
|---|---|
| Patients | 452 |
| Total drug cost | $495,227 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| 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
- Womans HospitalBaton Rouge, LA
Industry payments (Open Payments)
- 2025$613.99 · 33 payments from 7 companies
- 2024$462.15 · 36 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $205.14 | 17 |
| Genzyme Corporation | $204.12 | 5 |
| Gilead Sciences, Inc. | $77.75 | 4 |
| Ipsen Biopharmaceuticals, Inc | $44.42 | 2 |
| Pfizer Inc. | $42.80 | 3 |
What the 2025 payments were for
- Food and Beverage$613.99 · 33 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