John Williams, D.O.
NPI 1417334962ActiveIndividual· Anesthesiology· Des Moines, IA
Anesthesiology (D.O.) in Des Moines, Iowa, trained at Kansas City University of Physicians and Surgeons (class of 2015). Medicare paid $33,582 for services to 155 patients in 2024. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $117.45 in all, mostly food and beverage.
Overview
| NPI | 1417334962 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | May 5, 2015 |
| Last updated in NPPES | Jun 26, 2024 |
| Certified by provider | Jun 26, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | DO-05325 | IA |
| Anesthesiology | 207L00000X | 9408565 | KS |
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 - Anesthesiology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 155 |
|---|---|
| Services billed | 234 across 67 procedure codes |
| Paid by Medicare | $33,582 |
Education and affiliations
| Medical school | Kansas City University of Physicians and Surgeons |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Anesthesiology |
Medical group
- Associated Anesthesiologists PCDes Moines, IA · 65 clinicians
Hospital affiliation
- Unitypoint Health - Des Moines Iowa Methodist MediDes Moines, IA
Industry payments (Open Payments)
- 2025$117.45 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $65.68 | 3 |
| Heron Therapeutics, Inc. | $51.77 | 2 |
What the 2025 payments were for
- Food and Beverage$117.45 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 119 anesthesiologists in Des Moines · All anesthesiologists in Iowa