Quick answers
- Which hospitals does Sanjay Kumar work at?
- Medicare's official clinician data lists Sanjay Kumar at 5 hospitals: Marshfield Medical Center, Marshfield Medical Center - Minocqua, Marshfield Medical Center - Weston, Monmouth Medical Center-Southern Campus and Spring Valley Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sanjay Kumar see patients?
- Medicare's clinician data lists 6 practice locations, including Marshfield, WI, Merrill, WI and Wausau, WI. Call before your visit to confirm the address.
- What is Sanjay Kumar's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Sanjay Kumar accept Medicare assignment?
- Yes. Medicare's clinician data says Sanjay Kumar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sanjay Kumar?
- (715) 387-5511, as listed in official Medicare / NPI Registry data.
- What is Sanjay Kumar's NPI number?
- 1063528867. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sanjay Kumar works
Medicare's Facility Affiliation Data lists Sanjay Kumar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Marshfield Medical CenterMarshfield, WI · Acute Care Hospital · CCN 520037
- Marshfield Medical Center - MinocquaMinocqua, WI · Acute Care Hospital · CCN 520212
- Marshfield Medical Center - WestonWeston, WI · Acute Care Hospital · CCN 520202
- Monmouth Medical Center-Southern CampusLakewood, NJ · Acute Care Hospital · CCN 310084
- Spring Valley Hospital Medical CenterLas Vegas, NV · Acute Care Hospital · CCN 290046
Practice locations
Addresses where Sanjay Kumar is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1000 N Oak AveMarshfield, WI 54449 (715) 387‑5511
- 1205 O Day StMerrill, WI 54452 (715) 539‑0101
- 1207 O Day StMerrill, WI 54452 (715) 539‑9990
- 2727 Plaza DrWausau, WI 54401 (715) 847‑3000
- 3400 Ministry PkwyWeston, WI 54476 (715) 393‑1000
Group practices
Medicare enrollment lists Sanjay Kumar as a member of these groups (CMS data updated 2026-10-02).
- MCHS Hospitals Inc1,197 clinicians in the group
- Apex Cardiology Associates PLLC4 clinicians in the group
Specialties
Other cardiac electrophysiologists in Marshfield
Clinicians with the same Medicare primary specialty in Marshfield, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063528867 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians