Oscar Esteban-Artavia Segura, MD
NPI 1841878436ActiveIndividual· Internal Medicine· Jackson, TN
Internal Medicine (MD) in Jackson, Tennessee, trained at University of Tennessee, Hsc, College of Medicine (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $43,295 for 345 claims, against $16,856 paid for services in 2024. Paratek Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $39.10 in all, mostly food and beverage.
Overview
| NPI | 1841878436 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 1, 2021 |
| Last updated in NPPES | Jun 21, 2024 |
| Certified by provider | Jun 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 70621 | TN |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 99 |
|---|---|
| Services billed | 279 across 6 procedure codes |
| Paid by Medicare | $16,856 |
Part D prescriptions in 2024
| Prescriptions (claims) | 345 · 641 30-day fills |
|---|---|
| Patients | 97 |
| Total drug cost | $43,295 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Internal Medicine |
Hospital affiliation
- Jackson-Madison County General HospitalJackson, TN
Industry payments (Open Payments)
- 2025$39.10 · 2 payments from 2 companies
- 2024$72.57 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Paratek Pharmaceuticals, Inc. | $22.96 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $16.14 | 1 |
What the 2025 payments were for
- Food and Beverage$39.10 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 83 internal medicine physicians in Jackson · All internal medicine physicians in Tennessee