Alexi Zemsky, MD
Cardiovascular Disease Physician · Portland, OR
Alexi Zemsky, MD is a cardiovascular disease physician with a practice address in Portland, Oregon, and NPI 1598944928, issued on Nov 1, 2007. Check the license (Oregon MD126045, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alexi Zemsky
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- MD126045 OR
Self-reported in NPPES; status is on the state search - Practice location
- 4400 NE Halsey St Ste 102, Portland, OR 97213
- Phone
- (503) 962-1000
- Enumerated
- Nov 1, 2007
- Entity
- Type 1 · individual
Also registered at 4400 NE Halsey St Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jason Bensch, M.D.Internal Medicine Physician1164765111
- Sarah Bereznai, NPGerontology Nurse Practitioner1679086938
- Kristin Bourret, PACSurgical Physician Assistant1073555306
- Lisa Enger, ANPAdult Health Nurse Practitioner1295983617
- Cindy Fulton, PA-CPhysician Assistant1003217910
- Benjamin Hartwig, AGACNPGerontology Nurse Practitioner1578008397
Verify Alexi Zemsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD126045Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
40% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,888 Medicare Part D claims for 469 beneficiaries, against an average of 3,149 among the 19,556 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Eliquis347 claims
- Metoprolol Succinate290 claims
- Flecainide Acetate247 claims
- Sotalol238 claims
- Amiodarone Hcl124 claims
- Xarelto113 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $6,471.85
34 payments, mostly food and beverage; the largest payer was Merit Medical Systems Inc. The 16,209 providers of this specialty with any payment received $4,923.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
3 hospital and facility affiliations
- Providence Health And Services - OregonPortland, OR
- Providence Health And Services - OregonPortland, OR
- Providence Health And Services OregonNewberg, OR
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Cardiovascular Disease Physician providers in Oregon
There are 240 cardiovascular disease physician records in Oregon.
Other cardiovascular disease physician records in Oregon
- Amged Abdelaziz, MDPortland, OR1972703536
- Jacob Abraham, M.D.Portland, OR1548223381
- Vratika Agarwal, MBBSPortland, OR1780965228
- Shaun Ageno, M.D.Portland, OR1760692529
- Masud Ahmad, MDPortland, OR1780620880
- Norman Aiad, MDSalem, OR1154818250
- Cesar Alberte-Lista, MDClackamas, OR1144297789
- Douglas Anderson, MDRoseburg, OR1841294774
- Emilia Arden, D.O.La Grande, OR1114123684
- Abinet Ashine, M.D.Corvallis, OR1326314121
Common questions
What is Alexi Zemsky, MD's NPI number?
Alexi Zemsky, MD's National Provider Identifier (NPI) is 1598944928, issued on Nov 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alexi Zemsky, MD located?
The NPPES record lists a practice address at 4400 NE Halsey St Ste 102, Portland, OR, 97213. Phone: (503) 962-1000. Providers update this record themselves, so call before visiting.
How can I verify Alexi Zemsky, MD's license?
NPPES lists Oregon license number MD126045, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexi Zemsky, MD prescribe under Medicare Part D?
In 2024, Alexi Zemsky, MD had 1,888 Medicare Part D claims for 469 beneficiaries; the average among cardiovascular disease physician prescribers was 3,149. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.