Mary Elizabeth Holzer
NPI 1437546116ActiveIndividual· Internal Medicine· Covington, LA
Internal Medicine in Covington, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $205,493 for 2,566 claims, against $36,400 paid for services in 2024. Inspire Medical Systems, Inc. was the largest of 3 companies reporting payments in 2025, $83.74 in all, mostly food and beverage.
Overview
| NPI | 1437546116 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 21, 2015 |
| Last updated in NPPES | Feb 13, 2023 |
| Certified by provider | Feb 13, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 312613 | LA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Internal Medicine (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 126 |
|---|---|
| Services billed | 507 across 30 procedure codes |
| Paid by Medicare | $36,400 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,566 · 5,449 30-day fills |
|---|---|
| Patients | 356 |
| Total drug cost | $205,493 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Internal Medicine |
Medical group
- East Jefferson Physicians Group LLCCovington, LA · 214 clinicians
Hospital affiliations
- AvalaCovington, LA
- East Jefferson General HospitalMetairie, LA
- Ochsner Medical Center AcuteNew Orleans, LA
- St Tammany Parish HospitalCovington, LA
Other facilities
- Elara CaringHome health agency · Hammond, LA
Industry payments (Open Payments)
- 2025$83.74 · 4 payments from 3 companies
- 2024$293.31 · 16 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Inspire Medical Systems, Inc. | $33.20 | 2 |
| Itamar Medical Inc | $32.59 | 1 |
| Lilly USA, LLC | $17.95 | 1 |
What the 2025 payments were for
- Food and Beverage$83.74 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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