Susan Zacharia, M.D.
NPI 1114997715ActiveIndividual· Internal Medicine· Hammond, LA
Internal Medicine (M.D.) with North Oaks Medical Center LLC, practicing in Hammond, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $1,660,316 for 15,329 claims, against $29,381 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $517.16 in all, mostly food and beverage. Lists North Oaks Medical Center as a hospital affiliation.
Overview
| NPI | 1114997715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 25, 2006 |
| Last updated in NPPES | Dec 30, 2022 |
| Certified by provider | Dec 30, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 10787R | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 226 |
|---|---|
| Services billed | 875 across 15 procedure codes |
| Paid by Medicare | $29,381 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,329 · 29,939 30-day fills |
|---|---|
| Patients | 1,094 |
| Total drug cost | $1,660,316 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- North Oaks Medical Center LLCHammond, LA · 320 clinicians
Hospital affiliation
- North Oaks Medical CenterHammond, LA
Other facilities
- Audubon Home Health of HammondHome health agency · Hammond, LA
- Modern Home Health, IncHome health agency · Hammond, LA
Industry payments (Open Payments)
- 2025$517.16 · 28 payments from 14 companies
- 2024$316.93 · 16 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $118.42 | 7 |
| Abbott Laboratories | $69.31 | 3 |
| Lilly USA, LLC | $68.46 | 4 |
| Pfizer Inc. | $43.78 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $35.41 | 2 |
What the 2025 payments were for
- Food and Beverage$517.16 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 internal medicine physicians in Hammond · All internal medicine physicians in Louisiana