Ana Maria Sierra De Aragon, M.D.
NPI 1306070750ActiveIndividual· Internal Medicine· Gilbert, AZ
Internal Medicine (M.D.) with Ana M Sierra de Aragon MD, practicing in Gilbert, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,027,983 for 6,149 claims, against $123,896 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $607.17 in all, mostly food and beverage. Lists Banner Desert Medical Center as a hospital affiliation.
Overview
| NPI | 1306070750 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 13, 2009 |
| Last updated in NPPES | Mar 20, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 41648 | AZ |
| Pediatrics | 208000000X | 41648 | AZ |
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 - Internal Medicine (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 3,168 across 55 procedure codes |
| Paid by Medicare | $123,896 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,149 · 16,027 30-day fills |
|---|---|
| Patients | 406 |
| Total drug cost | $1,027,983 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Ana M Sierra de Aragon MDGilbert, AZ · 4 clinicians
Hospital affiliation
- Banner Desert Medical CenterMesa, AZ
Other facilities
- Summit Home Health LLCHome health agency · Phoenix, AZ
Industry payments (Open Payments)
- 2025$607.17 · 30 payments from 12 companies
- 2024$597.80 · 28 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $159.36 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $90.76 | 7 |
| Amgen Inc. | $74.11 | 5 |
| Xeris Pharmaceuticals, Inc. | $65.61 | 3 |
| Abbvie Inc. | $46.15 | 2 |
What the 2025 payments were for
- Food and Beverage$607.17 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 63 internal medicine physicians in Gilbert · All internal medicine physicians in Arizona