William J. Fessler, DDS
NPI 1124187539ActiveIndividual· Dentist· Norwalk, CT
Dentist (DDS) in Norwalk, Connecticut, licensed in CT, with an NPI issued in December 2006. Part D covered 108 prescriptions written in 2024, 60% of them generic. Align Technology, Inc. was the largest of 2 companies reporting payments in 2025, $84.01 in all, mostly food and beverage.
Overview
| NPI | 1124187539 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | No |
| NPI issued | Dec 8, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 006917 | CT |
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 (CT) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 108 · 116 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $945.65 |
| Generic share | 60% of claims |
Industry payments (Open Payments)
- 2025$84.01 · 2 payments from 2 companies
- 2024$60.69 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Align Technology, Inc. | $52.63 | 1 |
| Dentsply Sirona Inc | $31.38 | 1 |
What the 2025 payments were for
- Food and Beverage$84.01 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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