Diana Oviedo-Cavazos, M.D.
NPI 1477992584ActiveIndividual· Family Medicine· Winton, CA
Family Medicine (M.D.) with Castle Family Health Centers Inc, practicing in Winton, California. Part D covered 4,435 prescriptions written in 2024, 86% of them generic. Exact Sciences Corporation was the largest of 3 companies reporting payments in 2025, $85.04 in all, mostly food and beverage. Lists Mercy Medical Center as a hospital affiliation.
Overview
| NPI | 1477992584 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 21, 2013 |
| Last updated in NPPES | Aug 23, 2021 |
| Certified by provider | Aug 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A138821 | 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 - Family Practice (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 4,435 · 9,659 30-day fills |
|---|---|
| Patients | 270 |
| Total drug cost | $431,243 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Castle Family Health Centers IncAtwater, CA · 5 clinicians
Hospital affiliation
- Mercy Medical CenterMerced, CA
Other facilities
- Mercy Home CareHome health agency · Merced, CA
- Valley Home HealthHome health agency · Fresno, CA
Industry payments (Open Payments)
- 2025$85.04 · 3 payments from 3 companies
- 2024$36.07 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $34.76 | 1 |
| Novo Nordisk Inc | $28.73 | 1 |
| Glaxosmithkline, LLC. | $21.55 | 1 |
What the 2025 payments were for
- Food and Beverage$85.04 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records