Jessica Diaz, FNP-C
NPI 1598484917ActiveIndividual· Nurse Practitioner· Gilbert, AZ
Nurse Practitioner (FNP-C) with Ana M Sierra de Aragon MD, practicing in Gilbert, Arizona. Their prescriptions cost Medicare Part D more than their services did: $463,732 for 3,527 claims, against $21,690 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $658.70 in all, mostly food and beverage.
Overview
| NPI | 1598484917 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Aug 29, 2022 |
| Last updated in NPPES | Jan 24, 2023 |
| Certified by provider | Jan 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 278654 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 76 |
|---|---|
| Services billed | 488 across 35 procedure codes |
| Paid by Medicare | $21,690 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,527 · 7,751 30-day fills |
|---|---|
| Patients | 366 |
| Total drug cost | $463,732 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Ana M Sierra de Aragon MDGilbert, AZ · 4 clinicians
Industry payments (Open Payments)
- 2025$658.70 · 28 payments from 12 companies
- 2024$584.22 · 27 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $120.23 | 2 |
| Inspire Medical Systems, Inc. | $119.79 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $90.76 | 7 |
| Amgen Inc. | $74.11 | 5 |
| Astrazeneca Pharmaceuticals LP | $59.82 | 3 |
What the 2025 payments were for
- Food and Beverage$658.70 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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