Juan G. Gamboa, MD
NPI 1336297209ActiveIndividual· Internal Medicine· Baldwin Park, CA
Internal Medicine (MD) in Baldwin Park, California, trained at University of California, Geffen School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $11,989 for 206 claims, against $2,661 paid for services in 2024.
Overview
| NPI | 1336297209 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Dec 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A61925 | 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 | 19 |
|---|---|
| Services billed | 36 across 5 procedure codes |
| Paid by Medicare | $2,661 |
Part D prescriptions in 2024
| Prescriptions (claims) | 206 · 352 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $11,989 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| 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 - Baldwin ParkBaldwin Park, CA
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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All 59 internal medicine physicians in Baldwin Park · All internal medicine physicians in California