Allison Lynn Wastak, NP-C, RN, CCRN
NPI 1093197923ActiveIndividual· Nurse Practitioner, Family· Oxnard, CA
Nurse Practitioner, Family (NP-C, RN, CCRN) in Oxnard, California, trained at University of South Alabama College of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $311,965 for 1,010 claims, against $116,695 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 6 companies reporting payments in 2025, $189.01 in all, mostly food and beverage.
Overview
| NPI | 1093197923 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP-C, RN, CCRN |
| Sole proprietor | No |
| NPI issued | Jun 27, 2015 |
| Last updated in NPPES | May 7, 2024 |
| Certified by provider | May 7, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 0024172720 | VA |
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 (CA); Practitioner - Nurse Practitioner (DC); Practitioner - Nurse Practitioner (TX); Practitioner - Nurse Practitioner (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 263 |
|---|---|
| Services billed | 1,400 across 15 procedure codes |
| Paid by Medicare | $116,695 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,010 · 1,357 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $311,965 |
| Generic share | 47% of claims |
Education and affiliations
| Medical school | University of South Alabama College of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Inova Health Care ServicesAlexandria, VA · 1,817 clinicians
Hospital affiliations
- Inova Alexandria HospitalAlexandria, VA
- Inova Fair Oaks HospitalFairfax, VA
- Inova Fairfax HospitalFalls Church, VA
- Inova Mount Vernon HospitalAlexandria, VA
Industry payments (Open Payments)
- 2025$189.01 · 8 payments from 6 companies
- 2024$979.57 · 36 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $42.12 | 2 |
| Insmed, Inc. | $38.48 | 2 |
| Genzyme Corporation | $31.63 | 1 |
| Glaxosmithkline, LLC. | $28.63 | 1 |
| Regeneron Healthcare Solutions, Inc. | $24.93 | 1 |
What the 2025 payments were for
- Food and Beverage$189.01 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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