Gilbert P. Eng, M.D.
NPI 1255411609ActiveIndividual· Internal Medicine· Long Beach, CA
Internal Medicine (M.D.) in Long Beach, California, trained at Loma Linda University School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $254,119 for 2,404 claims, against $9,843 paid for services in 2024.
Overview
| NPI | 1255411609 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 17, 2006 |
| Last updated in NPPES | Dec 13, 2025 |
| Certified by provider | Dec 13, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A87470 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 121 |
|---|---|
| Services billed | 214 across 22 procedure codes |
| Paid by Medicare | $9,843 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,404 · 4,758 30-day fills |
|---|---|
| Patients | 1,039 |
| Total drug cost | $254,119 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Long Beach
- 1023024346
- 1023193125
- 1033537493
- 1073776191
- 1104186964
- 1114940145
- 1134233158
- 1164528105
- 1174535017
- 1205881091
- 1255338406
- 1255425146
All 298 internal medicine physicians in Long Beach · All internal medicine physicians in California