John Nguyen Winn, M.D.
NPI 1871795500ActiveIndividual· Radiology, Diagnostic Radiology· Carmichael, CA
Radiology, Diagnostic Radiology (M.D.) in Carmichael, California, trained at University of Missouri, Kansas City, School of Medicine (class of 2000). Medicare paid $187,464 for services to 2,953 patients in 2024. Shockwave Medical, Inc reported $28.73 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1871795500 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 4, 2007 |
| Last updated in NPPES | Apr 13, 2020 |
| Certified by provider | Apr 13, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | A99180 | CA |
| Radiology, Neuroradiology | 2085N0700X | A99180 | CA |
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 - Diagnostic Radiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,953 |
|---|---|
| Services billed | 9,537 across 136 procedure codes |
| Paid by Medicare | $187,464 |
Education and affiliations
| Medical school | University of Missouri, Kansas City, School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Diagnostic Radiology |
Medical group
- Dignity Health Medical FoundationFolsom, CA · 1,184 clinicians
Hospital affiliations
- Mercy General HospitalSacramento, CA
- Mercy Hospital of FolsomFolsom, CA
- Mercy Medical Center ReddingRedding, CA
- Mercy San Juan Medical CenterCarmichael, CA
- Methodist Hospital of SacramentoSacramento, CA
Industry payments (Open Payments)
- 2025$28.73 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shockwave Medical, Inc | $28.73 | 1 |
What the 2025 payments were for
- Food and Beverage$28.73 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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