Ariana Neddermann, FNP-C
NPI 1548049471ActiveIndividual· Nurse Practitioner, Family· Downey, CA
Nurse Practitioner, Family (FNP-C) with The Oncology Institute Ca, A Professional Corporation, practicing in Downey, California. Part D covered 573 prescriptions written in 2024, 50% of them generic. Novartis Pharmaceuticals Corporation was the largest of 44 companies reporting payments in 2025, $4,068 in all, mostly food and beverage. Lists Pih Health Downey Hospital as a hospital affiliation.
Overview
| NPI | 1548049471 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | Yes |
| NPI issued | Sep 28, 2023 |
| Last updated in NPPES | Sep 28, 2023 |
| Certified by provider | Sep 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | NP95024407 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 573 · 791 30-day fills |
|---|---|
| Patients | 204 |
| Total drug cost | $2,491,882 |
| Generic share | 50% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- The Oncology Institute Ca, A Professional CorporationSan Gabriel, CA · 113 clinicians
Hospital affiliation
- Pih Health Downey HospitalDowney, CA
Industry payments (Open Payments)
- 2025$4,068 · 156 payments from 44 companies
- 2024$3,976 · 121 payments from 40 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $543.03 | 19 |
| Janssen Biotech, Inc. | $378.23 | 12 |
| Merck Sharp & Dohme LLC | $294.34 | 12 |
| Sobi, Inc | $227.67 | 7 |
| Pfizer Inc. | $185.37 | 12 |
What the 2025 payments were for
- Food and Beverage$3,490 · 149 payments
- Education$394.65 · 5 payments
- Long term medical supply or device loan$183.03 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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