Man-Siak Mak, M.D., Inc.
NPI 1114115904ActiveOrganization· Internal Medicine, Gastroenterology· Merced, CA
Internal Medicine, Gastroenterology in Merced, California, registered in NPPES in October 2007. The authorized official on file is Man-Siak Mak, M. D., President.
Overview
| NPI | 1114115904 |
|---|---|
| Status | Active |
| Entity type | Organization |
| NPI issued | Oct 5, 2007 |
| Last updated in NPPES | Oct 5, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A26785 | 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 |
|---|
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