Calvin Minh Duong, M.D.
NPI 1184646119ActiveIndividual· Internal Medicine· Colton, CA
Internal Medicine (M.D.) with Southern California Permanente Medical Group, practicing in Colton, California. Their prescriptions cost Medicare Part D more than their services did: $205,163 for 3,960 claims, against $4,610 paid for services in 2024. Lists Kaiser Foundation Hospital Fontana/Ontario as a hospital affiliation.
Overview
| NPI | 1184646119 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Dec 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A91752 | 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 - Internal Medicine (CA); Practitioner - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 27 |
|---|---|
| Services billed | 124 across 21 procedure codes |
| Paid by Medicare | $4,610 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,960 · 10,541 30-day fills |
|---|---|
| Patients | 858 |
| Total drug cost | $205,163 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital Fontana/OntarioFontana, 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 71 internal medicine physicians in Colton · All internal medicine physicians in California