Gilbert Chen, MD
NPI 1013479120ActiveIndividual· Internal Medicine· Colton, CA
Internal Medicine (MD) with Quantum Healthcare Medical Associates Inc, practicing in Colton, California. Mostly services rather than prescriptions: Medicare paid $50,261 for 337 patients in 2024, with only 17 Part D claims. Lists Arrowhead Regional Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1013479120 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2019 |
| Last updated in NPPES | Jun 1, 2022 |
| Certified by provider | Jun 1, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | PTL390 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 337 |
|---|---|
| Services billed | 390 across 12 procedure codes |
| Paid by Medicare | $50,261 |
Part D prescriptions in 2024
| Prescriptions (claims) | 17 · 23 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $2,006 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Quantum Healthcare Medical Associates IncHilo, HI · 109 clinicians
Hospital affiliations
- Arrowhead Regional Medical CenterColton, CA
- Barstow Community HospitalBarstow, CA
- Bear Valley Community HospitalBig Bear Lake, CA
- Providence St Mary Medical CenterApple Valley, CA
- Redlands Community HospitalRedlands, CA
Other facilities
- Calstro Hospice IncHospice · Montclair, 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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