Nguyen H. Phan, MD
Internal Medicine, Clinical Cardiac Electrophysiology (MD) in Milwaukee, Wisconsin, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $838,713 for 2,079 claims, against $136,487 paid for services in 2024. Boston Scientific Corporation was the largest of 4 companies reporting payments in 2025, $334.12 in all, mostly food and beverage.
Overview
| NPI | 1194721407 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 22, 2005 |
| Last updated in NPPES | Nov 24, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | 45546 020 | 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 - Cardiac Electrophysiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 890 |
|---|---|
| Services billed | 2,522 across 72 procedure codes |
| Paid by Medicare | $136,487 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,079 · 4,876 30-day fills |
|---|---|
| Patients | 535 |
| Total drug cost | $838,713 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Cardiac Electrophysiology |
Medical group
- Columbia St Marys Hospital Milwaukee IncMilwaukee, WI · 306 clinicians
Hospital affiliations
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Ascension St Francis HospitalMilwaukee, WI
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
- Orthopaedic Hospital of WisconsinGlendale, WI
Industry payments (Open Payments)
- 2025$334.12 · 15 payments from 4 companies
- 2024$218.48 · 14 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $239.67 | 10 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $41.90 | 3 |
| Cardiva Medical, Inc. | $35.89 | 1 |
| Abbott Laboratories | $16.66 | 1 |
What the 2025 payments were for
- Food and Beverage$334.12 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 Internal Medicine, Clinical Cardiac Electrophysiology providers in Milwaukee · All Internal Medicine, Clinical Cardiac Electrophysiology providers in Wisconsin