Quick answers
- Which hospitals does Mary E. Holzer work at?
- Medicare's official clinician data lists Mary E. Holzer at 4 hospitals: Avala, East Jefferson General Hospital, Ochsner Medical Center Acute and St Tammany Parish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary E. Holzer see patients?
- Medicare's clinician data lists 1 practice location in Covington, LA. Call before your visit to confirm the address.
- What is Mary E. Holzer's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mary E. Holzer accept Medicare assignment?
- Yes. Medicare's clinician data says Mary E. Holzer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mary E. Holzer?
- (985) 892-6858, as listed in official Medicare / NPI Registry data.
- What is Mary E. Holzer's NPI number?
- 1437546116. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary E. Holzer works
Medicare's Facility Affiliation Data lists Mary E. Holzer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AvalaCovington, LA · Acute Care Hospital · CCN 190267
- East Jefferson General HospitalMetairie, LA · Acute Care Hospital · CCN 190176
- Ochsner Medical Center AcuteNew Orleans, LA · Acute Care Hospital · CCN 190036
- St Tammany Parish HospitalCovington, LA · Acute Care Hospital · CCN 190045
Practice locations
Addresses where Mary E. Holzer is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 Lakeview CirCovington, LA 70433 (985) 892‑6858
Group practices
Medicare enrollment lists Mary E. Holzer as a member of this group (CMS data updated 2026-10-02).
- East Jefferson Physicians Group LLC214 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Covington
Clinicians with the same Medicare primary specialty in Covington, LA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437546116 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians