William Nathaniel Lewis, PA-C
NPI 1003584640ActiveIndividual· Physician Assistant· West Des Moines, IA
Physician Assistant (PA-C) in West Des Moines, Iowa, trained at University of Washington School of Medicine (class of 2022). 131 Medicare patients in 2024, $14,274 paid; nearly all of their 359 Part D prescriptions were generic (96%). Lundbeck LLC was the largest of 12 companies reporting payments in 2025, $391.12 in all, mostly food and beverage.
Overview
| NPI | 1003584640 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Aug 30, 2021 |
| Last updated in NPPES | Sep 30, 2026 |
| Certified by provider | Sep 30, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 117882 | IA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 Practitioner - Physician Assistant (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 236 across 8 procedure codes |
| Paid by Medicare | $14,274 |
Part D prescriptions in 2024
| Prescriptions (claims) | 359 · 371 30-day fills |
|---|---|
| Patients | 110 |
| Total drug cost | $15,383 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Physician Assistant |
Medical group
- Precision Psychiatry LLCWest Des Moines, IA · 4 clinicians
Industry payments (Open Payments)
- 2025$391.12 · 21 payments from 12 companies
- 2024$301.20 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lundbeck LLC | $122.26 | 6 |
| Otsuka America Pharmaceutical, Inc. | $49.87 | 3 |
| Mdd US Operations, LLC | $40.10 | 2 |
| Axsome Therapeutics, Inc. | $34.62 | 2 |
| Abbvie Inc. | $24.73 | 1 |
What the 2025 payments were for
- Food and Beverage$391.12 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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