Duncan James Williams, DO
NPI 1225730781ActiveIndividual· Emergency Medicine· Las Vegas, NV
Emergency Medicine (DO) in Las Vegas, Nevada, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2023). Part D covered 52 prescriptions written in 2024, 88% of them generic.
Overview
| NPI | 1225730781 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Mar 20, 2023 |
| Last updated in NPPES | Jul 16, 2026 |
| Certified by provider | Jul 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | DO4122 | NV |
| Emergency Medicine | 207P00000X | 012254 | AZ |
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 Practitioner - Emergency Medicine (AZ); Practitioner - Emergency Medicine (NV) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 52 · 52 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $1,133 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2023 |
| Medicare specialty | Emergency Medicine |
Medical group
- Emergency Physicians Southwest PCPayson, AZ · 98 clinicians
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 356 emergency medicine physicians in Las Vegas · All emergency medicine physicians in Nevada