Quick answers
- Which hospitals does Mark D. Porta Jr. work at?
- Medicare's official clinician data lists Mark D. Porta Jr. at 2 hospitals: Baton Rouge General Medical Center and Our Lady of the Lake Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Porta Jr. see patients?
- Medicare's clinician data lists 2 practice locations, including Baton Rouge, LA and Thibodaux, LA. Call before your visit to confirm the address.
- What is Mark D. Porta Jr.'s specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Emergency Medicine and Internal Medicine.
- Does Mark D. Porta Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Porta Jr. 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 D. Porta Jr.?
- (225) 765-6565, as listed in official Medicare / NPI Registry data.
- What is Mark D. Porta Jr.'s NPI number?
- 1275890436. 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 D. Porta Jr. works
Medicare's Facility Affiliation Data lists Mark D. Porta Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baton Rouge General Medical CenterBaton Rouge, LA · Acute Care Hospital · CCN 190065
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA · Acute Care Hospital · CCN 190064
Practice locations
Addresses where Mark D. Porta Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 5000 Hennessy BlvdBaton Rouge, LA 70808 (225) 765‑6565
- 764 N Acadia Rd, Suite AThibodaux, LA 70301 (985) 446‑1958
Group practices
Medicare enrollment lists Mark D. Porta Jr. as a member of these groups (CMS data updated 2026-10-02).
- Texas Digestive Disease Consultants, PLLC608 clinicians in the group
- Lsuhn Billing LLC206 clinicians in the group
Specialties
- Gastroenterologyprimary
- Emergency Medicinealso
- Internal Medicinealso
Other gastroenterologists in Baton Rouge
Clinicians with the same Medicare primary specialty in Baton Rouge, LA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275890436 |
| 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