Loan Trung Pham, MD
NPI 1396893384ActiveIndividual· Internal Medicine· Fontana, CA
Internal Medicine (MD) with Southern California Permanente Medical Group, practicing in Fontana, California. Their prescriptions cost Medicare Part D more than their services did: $31,811 for 579 claims, against $3,518 paid for services in 2024. Phathom Pharmaceuticals, Inc. reported $124.26 in payments in 2025, mostly food and beverage. Lists Kaiser Foundation Hospital Fontana/Ontario as a hospital affiliation.
Overview
| NPI | 1396893384 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Dec 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A93554 | CA |
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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 54 across 5 procedure codes |
| Paid by Medicare | $3,518 |
Part D prescriptions in 2024
| Prescriptions (claims) | 579 · 1,133 30-day fills |
|---|---|
| Patients | 168 |
| Total drug cost | $31,811 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital Fontana/OntarioFontana, CA
Industry payments (Open Payments)
- 2025$124.26 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $124.26 | 1 |
What the 2025 payments were for
- Food and Beverage$124.26 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 118 internal medicine physicians in Fontana · All internal medicine physicians in California