Alexi Paul Zemsky, MD
NPI 1598944928ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Portland, OR
Internal Medicine, Clinical Cardiac Electrophysiology (MD) in Portland, Oregon, trained at Tulane University School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $705,052 for 1,888 claims, against $119,792 paid for services in 2024. Medtronic, Inc. was the largest of 6 companies reporting payments in 2025, $786.92 in all, mostly food and beverage.
Overview
| NPI | 1598944928 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2007 |
| Last updated in NPPES | Jun 20, 2023 |
| Certified by provider | Jun 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | MD126045 | OR |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MD126045 | OR |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 794 |
|---|---|
| Services billed | 1,619 across 70 procedure codes |
| Paid by Medicare | $119,792 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,888 · 4,752 30-day fills |
|---|---|
| Patients | 469 |
| Total drug cost | $705,052 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical groups
- Providence Health and Services OregonPortland, OR · 1,433 clinicians
- Providence Health and Services - OregonPortland, OR · 208 clinicians
- Providence Health and Services - OregonPortland, OR · 191 clinicians
Hospital affiliations
- Providence Hood River Memorial HospitalHood River, OR
- Providence Milwaukie HospitalMilwaukie, OR
- Providence Portland Medical CenterPortland, OR
- Providence St Vincent Medical CenterPortland, OR
- Providence Willamette Falls Medical CenterOregon City, OR
Industry payments (Open Payments)
- 2025$786.92 · 24 payments from 6 companies
- 2024$6,472 · 34 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $367.73 | 8 |
| Abbott Laboratories | $287.08 | 9 |
| Boston Scientific Corporation | $63.57 | 3 |
| Impulse Dynamics (USA) Inc. | $28.33 | 2 |
| Atricure, Inc. | $23.11 | 1 |
What the 2025 payments were for
- Food and Beverage$786.92 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 Internal Medicine, Clinical Cardiac Electrophysiology providers in Portland · All Internal Medicine, Clinical Cardiac Electrophysiology providers in Oregon