Pia Gabrielle Isidro Alfonso, M.D.
NPI 1356035737ActiveIndividual· Internal Medicine· Fontana, CA
Internal Medicine (M.D.) in Fontana, California, licensed in CA and MA, with an NPI issued in June 2023. Part D covered 73 prescriptions written in 2024, 89% of them generic.
Overview
| NPI | 1356035737 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 7, 2023 |
| Last updated in NPPES | Sep 24, 2026 |
| Certified by provider | Sep 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A209254 | CA |
| Internal Medicine | 207R00000X | 3014865 | MA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 Order and Referring Only - Internal Medicine (MA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 73 · 115 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $1,692 |
| Generic share | 89% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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