Libbe Blythe Marquez, APRN AGCNS-BC
NPI 1336719400ActiveIndividual· Clinical Nurse Specialist· Tulsa, OK
Clinical Nurse Specialist (APRN AGCNS-BC) in Tulsa, Oklahoma, trained at University of Oklahoma College of Medicine (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $318,457 for 161 claims, against $49,432 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2025, $398.52 in all, mostly food and beverage.
Overview
| NPI | 1336719400 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN AGCNS-BC |
| Sole proprietor | No |
| NPI issued | Jun 30, 2021 |
| Last updated in NPPES | Aug 28, 2023 |
| Certified by provider | Aug 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Clinical Nurse Specialist Primary | 364S00000X | R0124884 | OK |
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 - Certified Clinical Nurse Specialist (Cns) (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 410 |
|---|---|
| Services billed | 676 across 20 procedure codes |
| Paid by Medicare | $49,432 |
Part D prescriptions in 2024
| Prescriptions (claims) | 161 · 256 30-day fills |
|---|---|
| Patients | 69 |
| Total drug cost | $318,457 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Certified Clinical Nurse Specialist (Cns) |
Medical group
- Oklahoma Cancer Specialists and Research Institute, LLCTulsa, OK · 47 clinicians
Industry payments (Open Payments)
- 2025$398.52 · 16 payments from 9 companies
- 2024$516.50 · 17 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $177.45 | 6 |
| Novartis Pharmaceuticals Corporation | $47.59 | 2 |
| Regeneron Healthcare Solutions, Inc. | $41.37 | 2 |
| Aveo Pharmaceuticals, Inc. | $35.80 | 1 |
| Incyte Corporation | $21.47 | 1 |
What the 2025 payments were for
- Food and Beverage$398.52 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Clinical Nurse Specialist providers in Tulsa
- 1073146312
- 1093151169
- 1104054147
- 1376967299
- 1437670585
- 1457618613
- 1467499319
- 1578834396
- 1598496051
- 1629229307
- 1700109824
- 1700114329
All 29 Clinical Nurse Specialist providers in Tulsa · All Clinical Nurse Specialist providers in Oklahoma