Lex Chen, M.D.
NPI 1265607956ActiveIndividual· Hospitalist· Sylmar, CA
Hospitalist (M.D.) in Sylmar, California, trained at Northwestern University Feinberg Medical School (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $37,387 for 453 claims, against $2,132 paid for services in 2024.
Overview
| NPI | 1265607956 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 24, 2008 |
| Last updated in NPPES | Mar 14, 2024 |
| Certified by provider | Mar 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A110087 | 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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 31 across 4 procedure codes |
| Paid by Medicare | $2,132 |
Part D prescriptions in 2024
| Prescriptions (claims) | 453 · 824 30-day fills |
|---|---|
| Patients | 210 |
| Total drug cost | $37,387 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Hospitalist providers in Sylmar
- 1730315359
- 1669648192
- 1649899477
- 1912585795
- 1851558837
- 1427323591
- 1568081966