William Siemiaszko, DDS
NPI 1720295009ActiveIndividual· Dentist· Seekonk, MA
Dentist (DDS) in Seekonk, Massachusetts, licensed in MA, CT, RI and NY and other states, with an NPI issued in May 2007. Enrolled in Medicare as order and referring only - dentist.
Overview
| NPI | 1720295009 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | No |
| NPI issued | May 17, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 21050 | MA |
| Dentist | 122300000X | 004430 | CT |
| Dentist | 122300000X | DEN02924 | RI |
| Dentist | 122300000X | 052591-1 | NY |
| Dentist | 122300000X | 30-022317 | OH |
| Dentist | 122300000X | DS036764 | PA |
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 Order and Referring Only - Dentist (NM) |
|---|
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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