Sergey I. Zhadanov, M.D.
NPI 1356583728ActiveIndividual· Radiology, Diagnostic Radiology· Marshfield, WI
Radiology, Diagnostic Radiology (M.D.) with McHs Hospitals Inc and 1 other group, practicing in Marshfield, Wisconsin. Medicare paid $65,747 for services to 1,240 patients in 2024. Lists Marshfield Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1356583728 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 1, 2009 |
| Last updated in NPPES | Apr 5, 2021 |
| Certified by provider | Apr 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 64176-20 | WI |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,240 |
|---|---|
| Services billed | 1,845 across 56 procedure codes |
| Paid by Medicare | $65,747 |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Diagnostic Radiology |
Medical groups
- McHs Hospitals IncMarshfield, WI · 1,197 clinicians
- Marshfield Clinic IncRoseville, MN · 207 clinicians
Hospital affiliations
- Marshfield Medical CenterMarshfield, WI
- Marshfield Medical Center - Eau ClaireEau Claire, WI
- Marshfield Medical Center - MinocquaMinocqua, WI
- Marshfield Medical Center - Rice LakeRice Lake, WI
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 23 diagnostic radiologists in Marshfield · All diagnostic radiologists in Wisconsin