Luke M. Williams, MD
NPI 1659347854ActiveIndividual· Internal Medicine, Pulmonary Disease· Lake Charles, LA
Internal Medicine, Pulmonary Disease (MD) in Lake Charles, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $1,388,287 for 2,383 claims, against $309,302 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 12 companies reporting payments in 2025, $2,499 in all, mostly food and beverage.
Overview
| NPI | 1659347854 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 27, 2006 |
| Last updated in NPPES | Jan 30, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 020703 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 924 |
|---|---|
| Services billed | 6,821 across 88 procedure codes |
| Paid by Medicare | $309,302 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,383 · 4,063 30-day fills |
|---|---|
| Patients | 372 |
| Total drug cost | $1,388,287 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Pulmonary Disease |
Medical group
- Imperial Health LLPLake Charles, LA · 78 clinicians
Hospital affiliations
- Christus Ochsner Lake Area HospitalLake Charles, LA
- Christus Ochsner St Patrick HospitalLake Charles, LA
- Lake Charles Memorial HospitalLake Charles, LA
- Ochsner American Legion HospitalJennings, LA
- West Calcasieu Cameron HospitalSulphur, LA
Other facilities
- Elara CaringHome health agency · Jennings, LA
Industry payments (Open Payments)
- 2025$2,499 · 133 payments from 12 companies
- 2024$2,579 · 133 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $676.12 | 41 |
| Astrazeneca Pharmaceuticals LP | $432.83 | 29 |
| Viatris Specialty LLC | $264.08 | 15 |
| Genzyme Corporation | $240.73 | 14 |
| Regeneron Healthcare Solutions, Inc. | $238.88 | 9 |
What the 2025 payments were for
- Food and Beverage$2,499 · 133 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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