William Anthony Anderson III, M.D.
NPI 1598730707ActiveIndividual· Internal Medicine, Gastroenterology· Baton Rouge, LA
Internal Medicine, Gastroenterology (M.D.) in Baton Rouge, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $151,769 for 195 claims, against $13,698 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $247.35 in all, mostly food and beverage.
Overview
| NPI | 1598730707 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 21, 2006 |
| Last updated in NPPES | Nov 7, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 016561 | 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 | 95 |
|---|---|
| Services billed | 169 across 25 procedure codes |
| Paid by Medicare | $13,698 |
Part D prescriptions in 2024
| Prescriptions (claims) | 195 · 241 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $151,769 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Lsuhn Billing LLCLafayette, LA · 206 clinicians
Hospital affiliation
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA
Industry payments (Open Payments)
- 2025$247.35 · 11 payments from 4 companies
- 2024$246.84 · 20 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $116.54 | 6 |
| Ipsen Biopharmaceuticals, Inc | $84.31 | 3 |
| Aimmune Therapeutics, Inc. | $26.07 | 1 |
| Gilead Sciences, Inc. | $20.43 | 1 |
What the 2025 payments were for
- Food and Beverage$247.35 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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