John J. O'Brien, DDS
NPI 1811208333ActiveIndividual· Dentist, General Practice· Marshfield, WI
Dentist, General Practice (DDS) in Marshfield, Wisconsin, licensed in WI, with an NPI issued in June 2010. Part D covered 130 prescriptions written in 2024, 99% of them generic.
Overview
| NPI | 1811208333 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | No |
| NPI issued | Jun 30, 2010 |
| Last updated in NPPES | Jun 10, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, General Practice Primary | 1223G0001X | 6543 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Order and Referring Only - Dentist (NY); Order and Referring Only - Oral Surgery (WI) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 130 · 131 30-day fills |
|---|---|
| Patients | 85 |
| Total drug cost | $704.71 |
| Generic share | 99% of claims |
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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