Ernestine Bustamante, M.D.
NPI 1427030469ActiveIndividual· Obstetrics & Gynecology· Chandler, AZ
Obstetrics & Gynecology (M.D.) in Chandler, Arizona, trained at University of Arizona College of Medicine (class of 1997). 45 Medicare patients in 2024, $9,590 paid; nearly all of their 98 Part D prescriptions were generic (90%). Biogen, Inc. was the largest of 6 companies reporting payments in 2025, $91.46 in all, mostly food and beverage.
Overview
| NPI | 1427030469 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 16, 2005 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 30366 | 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 - Obstetrics/Gynecology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 45 |
|---|---|
| Services billed | 133 across 19 procedure codes |
| Paid by Medicare | $9,590 |
Part D prescriptions in 2024
| Prescriptions (claims) | 98 · 152 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $4,126 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Arizona OB GYN Affiliates PCChandler, AZ · 123 clinicians
Industry payments (Open Payments)
- 2025$91.46 · 6 payments from 6 companies
- 2024$233.32 · 10 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $23.13 | 1 |
| Dexcom, Inc. | $17.43 | 1 |
| Hologic Sales and Service, LLC | $15.53 | 1 |
| Smith+nephew, Inc. | $13.78 | 1 |
| Meditrina | $12.31 | 1 |
What the 2025 payments were for
- Food and Beverage$91.46 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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