Sumit Nikunj Ringwala, M.D.
NPI 1316089154ActiveIndividual· Internal Medicine, Interventional Cardiology· Green Bay, WI
Internal Medicine, Interventional Cardiology (M.D.) in Green Bay, Wisconsin, trained at University of Wisconsin School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $282,316 for 1,288 claims, against $64,809 paid for services in 2024. Stryker Corporation was the largest of 6 companies reporting payments in 2025, $4,291 in all, mostly consulting fees.
Overview
| NPI | 1316089154 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 12, 2007 |
| Last updated in NPPES | Nov 3, 2023 |
| Certified by provider | Nov 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 502530-020 | WI |
| Internal Medicine | 207R00000X | 5025320 | WI |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 5025320 | 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 - Interventional Cardiology (MI); Practitioner - Cardiovascular Disease (Cardiology) (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 615 |
|---|---|
| Services billed | 1,075 across 69 procedure codes |
| Paid by Medicare | $64,809 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,288 · 2,872 30-day fills |
|---|---|
| Patients | 303 |
| Total drug cost | $282,316 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical groups
- Osf Multi-Specialty GroupMorton, IL · 2,114 clinicians
- Bellin Memorial Hospital IncGreen Bay, WI · 697 clinicians
- St Francis HospitalEscanaba, MI · 86 clinicians
Hospital affiliations
- Bellin Health Oconto HospitalOconto, WI
- Bellin Memorial HospitalGreen Bay, WI
- Osf St Francis Hospital and Medical GroupEscanaba, MI
Industry payments (Open Payments)
- 2025$4,291 · 16 payments from 6 companies
- 2024$755.03 · 16 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $3,240 | 4 |
| Boston Scientific Corporation | $971.83 | 7 |
| Surmodics, Inc. | $25.52 | 2 |
| Astrazeneca Pharmaceuticals LP | $22.08 | 1 |
| Inari Medical, Inc. | $17.32 | 1 |
What the 2025 payments were for
- Consulting Fee$3,150 · 1 payment
- Travel and Lodging$734.75 · 4 payments
- Food and Beverage$406.10 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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