Naili Alexander Chen, D.O., MPH, MASC
NPI 1649251661ActiveIndividual· Internal Medicine· Lancaster, CA
Internal Medicine (D.O., MPH, MASC) in Lancaster, California, licensed in CA and PA, with an NPI issued in November 2005.
Overview
| NPI | 1649251661 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O., MPH, MASC |
| Sole proprietor | Yes |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | May 20, 2026 |
| Certified by provider | May 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A7408 | CA |
| Internal Medicine | 207R00000X | OS-009459-L | PA |
| Preventive Medicine, Preventive Medicine/Occupational Environmental Medicine | 2083P0500X | 20A7408 | CA |
| Hospitalist | 208M00000X | OS-009459L | PA |
| Hospitalist | 208M00000X | 20A7048 | CA |
| Emergency Medicine, Emergency Medical Services | 207PE0004X | 20A7408 | CA |
| Preventive Medicine, Aerospace Medicine | 2083A0100X | 20A7408 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
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 79 internal medicine physicians in Lancaster · All internal medicine physicians in California