Kathryn Marie Istre
NPI 1093470114ActiveIndividual· Nurse Practitioner, Family· Lake Charles, LA
Nurse Practitioner, Family with Lcms Neurosurgical Institute of Lake Charles LLC, practicing in Lake Charles, Louisiana. 225 Medicare patients in 2024, $68,457 paid; nearly all of their 465 Part D prescriptions were generic (93%). Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $573.23 in all, mostly food and beverage. Lists Christus Ochsner St Patrick Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1093470114 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Nov 3, 2021 |
| Last updated in NPPES | Oct 29, 2026 |
| Certified by provider | Oct 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 218803 | LA |
| Nurse Practitioner | 363L00000X | 218803 | 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 - Nurse Practitioner (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 225 |
|---|---|
| Services billed | 8,968 across 8 procedure codes |
| Paid by Medicare | $68,457 |
Part D prescriptions in 2024
| Prescriptions (claims) | 465 · 491 30-day fills |
|---|---|
| Patients | 155 |
| Total drug cost | $34,266 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Lcms Neurosurgical Institute of Lake Charles LLCLake Charles, LA · 11 clinicians
Hospital affiliations
- Christus Ochsner St Patrick HospitalLake Charles, LA
- Lake Charles Memorial HospitalLake Charles, LA
- West Calcasieu Cameron HospitalSulphur, LA
Industry payments (Open Payments)
- 2025$573.23 · 33 payments from 3 companies
- 2024$691.77 · 37 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $517.16 | 30 |
| Spinal Simplicity, LLC | $39.16 | 2 |
| Pacira Pharmaceuticals Incorporated | $16.91 | 1 |
What the 2025 payments were for
- Food and Beverage$573.23 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 205 family nurse practitioners in Lake Charles · All family nurse practitioners in Louisiana