Zhaowei Ai, MD
NPI 1487645271ActiveIndividual· Internal Medicine, Interventional Cardiology· Green Bay, WI
Internal Medicine, Interventional Cardiology (MD) with Ascension Medical Group-Southeast Wisconsin Inc, practicing in Green Bay, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $281,198 for 2,406 claims, against $82,232 paid for services in 2024. Medtronic, Inc. was the largest of 4 companies reporting payments in 2025, $213.70 in all, mostly food and beverage. Lists Ascension Columbia St Marys Hospital Milwaukee and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1487645271 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2005 |
| Last updated in NPPES | Jun 21, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 45544 | 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 - Cardiovascular Disease (Cardiology) (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 695 |
|---|---|
| Services billed | 1,753 across 60 procedure codes |
| Paid by Medicare | $82,232 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,406 · 5,792 30-day fills |
|---|---|
| Patients | 348 |
| Total drug cost | $281,198 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI · 545 clinicians
Hospital affiliations
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Ascension St Francis HospitalMilwaukee, WI
- Aurora St Lukes Medical CenterMilwaukee, WI
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
Industry payments (Open Payments)
- 2025$213.70 · 6 payments from 4 companies
- 2024$271.62 · 8 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $86.98 | 2 |
| Stryker Corporation | $62.21 | 1 |
| Heartflow, Inc. | $49.97 | 2 |
| Astrazeneca Pharmaceuticals LP | $14.54 | 1 |
What the 2025 payments were for
- Food and Beverage$213.70 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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