Quick answers
- Which hospitals does Mark J. Nicaud work at?
- Medicare's official clinician data lists Mark J. Nicaud at 5 hospitals: Highland Community Hospital, Memorial Hospital at Gulfport, Ochsner Medical Center Acute, Slidell Memorial Hospital and St Tammany Parish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark J. Nicaud see patients?
- Medicare's clinician data lists 3 practice locations, including Picayune, MS, Covington, LA and Slidell, LA. Call before your visit to confirm the address.
- What is Mark J. Nicaud's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Mark J. Nicaud accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Nicaud 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.
- Does Mark J. Nicaud offer telehealth?
- Medicare's clinician data says Mark J. Nicaud offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark J. Nicaud?
- (985) 641-8982, as listed in official Medicare / NPI Registry data.
- What is Mark J. Nicaud's NPI number?
- 1598927667. 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 J. Nicaud works
Medicare's Facility Affiliation Data lists Mark J. Nicaud at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Highland Community HospitalPicayune, MS · Acute Care Hospital · CCN 250117
- Memorial Hospital at GulfportGulfport, MS · Acute Care Hospital · CCN 250019
- Ochsner Medical Center AcuteNew Orleans, LA · Acute Care Hospital · CCN 190036
- Slidell Memorial HospitalSlidell, LA · Acute Care Hospital · CCN 190040
- St Tammany Parish HospitalCovington, LA · Acute Care Hospital · CCN 190045
Practice locations
Addresses where Mark J. Nicaud is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 Highland PkwyPicayune, MS 39466 (985) 641‑8982
- 131 Cherokee Rose LnCovington, LA 70433 (985) 871‑1721
- 58515 Pearl Acres RdSlidell, LA 70461 (985) 871‑1721
Group practices
Medicare enrollment lists Mark J. Nicaud as a member of this group (CMS data updated 2026-10-02).
- Texas Digestive Disease Consultants, PLLC608 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Mississippi
Clinicians with the same Medicare primary specialty in Mississippi — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598927667 |
| 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