Who Paid My Doc
Alexi Zemsky
Clinical Cardiac Electrophysiology Portland, OR Medical Doctor
NPI 1598944928 CMS profile 722234
4400 Ne Halsey St Ste 102, Ste 201, Portland, OR 97213
General payments
$12,652
Research payments
$0
Ownership & investment interest
$0
Research they led as principal investigator
$33,965
Through program year 2025, Alexi Zemsky of Portland, OR is reported in the CMS Open Payments database as having received $12,652 across 131 general payments and $0 in research payments paid to them. Separately, studies naming them as principal investigator received $33,965 in research payments, paid to institutions rather than to them.
No combined total General, research and ownership are kept apart. Each is reported under its own rules, and ownership is not money that moved at all but the value of a stake held. A meal, a clinical trial grant and a shareholding do not add up to anything meaningful, so this site does not add them. The principal-investigator line is research money paid to institutions for studies they led — not to them — and is not added to anything either.
General payments for this record sit in the 39th percentile of Clinical Cardiac Electrophysiology profiles with reported payments. Percentile describes the distribution, not the conduct.
By program year
7 rows| Year | Kind | Relative to this record's peak year | Amount | Records |
|---|---|---|---|---|
| 2025 | General | $787 | 24 | |
| 2024 | General | $6,472 | 34 | |
| 2023 | General | $2,845 | 26 | |
| 2022 | General | $634 | 13 | |
| 2021 | General | $1,340 | 16 | |
| 2020 | General | $398 | 9 | |
| 2019 | General | $177 | 9 |
Beside peers
- Alexi Zemsky
- Clinical Cardiac Electrophysiology median
- Middle half of Clinical Cardiac Electrophysiology
- National median
In program year 2025, general payments to Alexi Zemsky were reported at $787. Among 3,064 Clinical Cardiac Electrophysiology profiles paid that year, the median was $2,462 and the middle half received between $733 and $7,710.
Show as a table
| Year | Alexi Zemsky | Clinical Cardiac Electrophysiology median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $177 | $2,361 | $585–$8,260 | $163 |
| 2020 | $398 | $993 | $247–$4,351 | $114 |
| 2021 | $1,340 | $1,185 | $326–$4,739 | $132 |
| 2022 | $634 | $2,073 | $554–$6,789 | $149 |
| 2023 | $2,845 | $2,568 | $759–$8,159 | $160 |
| 2024 | $6,472 | $2,557 | $703–$7,403 | $164 |
| 2025 | $787 | $2,462 | $733–$7,710 | $169 |
Breakdown
A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.
Prescribing to Medicare patients
Part D · data year 2024 · 19 drugsPart D claims
1,807
Drug cost
$698,205
Branded share of claims
47.1%
| Drug | Type | Relative to their largest | Claims | Drug cost |
|---|---|---|---|---|
| Eliquis Apixaban | Brand | 347 | $477,041 | |
| Xarelto Rivaroxaban | Brand | 113 | $150,590 | |
| Dofetilide | Generic | 109 | $21,857 | |
| Multaq Dronedarone Hcl | Brand | 14 | $20,000 | |
| Flecainide Acetate | Generic | 247 | $9,796 | |
| Metoprolol Succinate | Generic | 290 | $5,116 | |
| Sotalol Sotalol Hcl | Brand | 238 | $4,777 | |
| Amiodarone Hcl | Generic | 124 | $2,464 | |
| Diltiazem 24hr Er (Xr) Diltiazem Hcl | Brand | 50 | $1,997 | |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | Brand | 35 | $1,239 |
The 10 drugs with the highest cost, of 19 counted.
Drug cost is what was paid for the drugs at the pharmacy — by Medicare, the patient and others — and is not money to the prescriber. Medicare Part D only: drugs dispensed to Medicare beneficiaries. A drug with fewer than 11 claims for this prescriber is not published, so a missing drug does not mean zero. The medians are for the 2,573 Part D prescribers listed as Clinical Cardiac Electrophysiology; they describe a distribution and say nothing about conduct.
Billing to Medicare
Part B · data year 2024 · 70 billing codesPaid by Medicare
$119,792
Medicare patients
794
Services billed
1,619
| Condition among their Medicare patients | Relative to the most common | Share of patients |
|---|---|---|
| High blood pressure | 75% | |
| Atrial fibrillation | 69% | |
| Heart failure | 61% | |
| Ischemic heart disease | 47% | |
| Arthritis | 38% | |
| Chronic kidney disease | 36% | |
| Diabetes | 27% | |
| Depression | 24% |
Medicare Part B only: services billed to Medicare. Rows covering fewer than 11 beneficiaries are not published. Only drugs given in the clinic are itemised here; the rest of what this provider billed is in the total above.
Payments and prescribing
3 products · payments 2024Two separate records. The payments come from Open Payments and the claims from Medicare. They are set side by side because they name the same product; they do not show that a payment affected a prescription.
| Product | Paid by | Related payments | Part D claims | Part B services |
|---|---|---|---|---|
| ELIQUIS |
|
$7 | 347 | — |
| NURTEC ODT |
|
$7 | — | — |
| ZAVZPRET |
|
$7 | — | — |
A dash means Medicare published no figure for this doctor and product — fewer than 11 claims, or the product is not covered under that part — which is not the same as none. Payments are general payments only; one that names several products is split evenly between them, so an amount is payments related to the product, not money paid for it.
Records
131 reportedEvery payment, record by record
Date, company, amount, what it was for and the product named — filter by year, kind and company, or download as CSV.
Other Clinical Cardiac Electrophysiology in Oregon
Robert Florek
Clinical Cardiac Electrophysiology · Hood River, OR
Jeff Hsing
Clinical Cardiac Electrophysiology · Corvallis, OR
Nathaniel McConkey
Clinical Cardiac Electrophysiology · Portland, OR
Sandeep Saha
Clinical Cardiac Electrophysiology · Salem, OR
Jonathan Lowy
Clinical Cardiac Electrophysiology · Bend, OR
Edward Cheng
Clinical Cardiac Electrophysiology · Gresham, OR
Related records
Clinical Cardiac Electrophysiology in Oregon
Practitioners in the same specialty and state, ranked by reported value.
All Clinical Cardiac Electrophysiology
Everyone recorded under this specialty, nationwide.
Doctors in Oregon
Every practitioner in the state with a reported payment.
How to read this page
What each amount means, and what it does not mean.
What this means
U.S. law requires drug and medical device manufacturers to report payments and transfers of value they make to physicians and teaching hospitals. The Centers for Medicare & Medicaid Services publishes that record each year. This page shows what was reported about this person, and nothing else.
An ownership interest is different from the other two. It is not a payment: it is a stake — shares, options, a partnership holding — that a physician or an immediate family member held in a manufacturer during that year. The figure shown is what the stake was reported to be worth.
Research payments frequently pass through a clinician to the institution running a trial, and rarely represent personal income. They should be read differently from general payments.