Mariana C. Zapata, MD
NPI 1821528076ActiveIndividual· Internal Medicine, Hepatology· New Orleans, LA
Internal Medicine, Hepatology (MD) in New Orleans, Louisiana, trained at Tulane University School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $118,063 for 529 claims, against $22,243 paid for services in 2024. Madrigal Pharmaceuticals reported $126.32 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1821528076 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 19, 2017 |
| Last updated in NPPES | Sep 1, 2023 |
| Certified by provider | Sep 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hepatology Primary | 207RI0008X | 336376 | LA |
| Internal Medicine | 207R00000X | 271942 | MA |
| Internal Medicine | 207R00000X | 336376 | LA |
| Internal Medicine, Gastroenterology | 207RG0100X | 336376 | LA |
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 | 184 |
|---|---|
| Services billed | 310 across 20 procedure codes |
| Paid by Medicare | $22,243 |
Part D prescriptions in 2024
| Prescriptions (claims) | 529 · 718 30-day fills |
|---|---|
| Patients | 133 |
| Total drug cost | $118,063 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Ochsner Clinic LLCNew Orleans, LA · 2,864 clinicians
Hospital affiliations
- Ochsner American Legion HospitalJennings, LA
- Ochsner Lafayette General Medical CenterLafayette, LA
- Ochsner Medical Center - Baton RougeBaton Rouge, LA
- Ochsner Medical Center AcuteNew Orleans, LA
- Slidell Memorial HospitalSlidell, LA
Industry payments (Open Payments)
- 2025$126.32 · 1 payment from 1 company
- 2024$120.11 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $126.32 | 1 |
What the 2025 payments were for
- Food and Beverage$126.32 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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