Matthew D. McElveen, MD
NPI 1245395573ActiveIndividual· Internal Medicine, Hematology & Oncology· Slidell, LA
Internal Medicine, Hematology & Oncology (MD) in Slidell, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $793,092 for 1,443 claims, against $72,987 paid for services in 2024. Sanofi-Aventis U.S. LLC was the largest of 23 companies reporting payments in 2025, $717.11 in all, mostly food and beverage.
Overview
| NPI | 1245395573 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 27, 2006 |
| Last updated in NPPES | Mar 14, 2022 |
| Certified by provider | Mar 14, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 024947 | LA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 20472 | MS |
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 - Hematology/Oncology (LA); Practitioner - Hematology/Oncology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 388 |
|---|---|
| Services billed | 1,422 across 14 procedure codes |
| Paid by Medicare | $72,987 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,443 · 1,930 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $793,092 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Medical Oncology |
Medical group
- Ochsner Clinic LLCNew Orleans, LA · 2,864 clinicians
Hospital affiliations
- Highland Community HospitalPicayune, MS
- Ochsner Medical Center AcuteNew Orleans, LA
- Ochsner Medical Center-HancockBay Saint Louis, MS
- Slidell Memorial HospitalSlidell, LA
- St Bernard Parish HospitalChalmette, LA
Industry payments (Open Payments)
- 2025$717.11 · 32 payments from 23 companies
- 2024$482.52 · 26 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sanofi-Aventis U.S. LLC | $81.00 | 1 |
| Abbvie Inc. | $71.50 | 4 |
| Glaxosmithkline, LLC. | $56.45 | 3 |
| Astrazeneca Pharmaceuticals LP | $54.48 | 3 |
| Merck Sharp & Dohme LLC | $48.74 | 2 |
What the 2025 payments were for
- Food and Beverage$636.11 · 31 payments
- Education$81.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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