Quick answers
- Which hospitals does Mark B. Holder work at?
- Medicare's official clinician data lists Mark B. Holder at 1 hospital: Sabine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark B. Holder see patients?
- Medicare's clinician data lists 2 practice locations, including Many, LA. Call before your visit to confirm the address.
- What is Mark B. Holder's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Mark B. Holder accept Medicare assignment?
- Yes. Medicare's clinician data says Mark B. Holder 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 Mark B. Holder?
- (318) 256-9002, as listed in official Medicare / NPI Registry data.
- What is Mark B. Holder's NPI number?
- 1861452260. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark B. Holder works
Medicare's Facility Affiliation Data lists Mark B. Holder at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sabine Medical CenterMany, LA · Acute Care Hospital · CCN 190218
Practice locations
Addresses where Mark B. Holder is enrolled with Medicare (CMS data updated 2026-10-02).
- 12060 Texas HwyMany, LA 71449 (318) 256‑9002
- 240 Highland DrMany, LA 71449 (318) 256‑5691
Group practices
Medicare enrollment lists Mark B. Holder as a member of these groups (CMS data updated 2026-10-02).
- Allegiance Hospital of Many, LLC42 clinicians in the group
- Hodges Emergency Group LLC15 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Louisiana
Clinicians with the same Medicare primary specialty in Louisiana — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861452260 |
| 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