Alexander Lim Cheng, M.D.
NPI 1396806428ActiveIndividual· Internal Medicine· Montebello, CA
Internal Medicine (M.D.) with Southern California Permanente Medical Group and 1 other group, practicing in Montebello, California. Their prescriptions cost Medicare Part D more than their services did: $148,450 for 3,305 claims, against $2,840 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 6 companies reporting payments in 2025, $334.66 in all, mostly food and beverage.
Overview
| NPI | 1396806428 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 13, 2006 |
| Last updated in NPPES | Nov 1, 2021 |
| Certified by provider | Nov 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A61554 | 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 | 48 |
|---|---|
| Services billed | 82 across 7 procedure codes |
| Paid by Medicare | $2,840 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,305 · 4,881 30-day fills |
|---|---|
| Patients | 333 |
| Total drug cost | $148,450 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
- South Central Family Health CenterLos Angeles, CA · 23 clinicians
Industry payments (Open Payments)
- 2025$334.66 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $119.04 | 1 |
| Corcept Therapeutics | $77.45 | 1 |
| Novo Nordisk Inc | $52.33 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $46.61 | 1 |
| Tonix Medicines, Inc. | $21.46 | 1 |
What the 2025 payments were for
- Food and Beverage$334.66 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 internal medicine physicians in Montebello · All internal medicine physicians in California