Alexi Paul Zemsky, MD - Medicare Cardiac Electrophysiology in Portland, OR

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Alexi Paul Zemsky, MD is a medicare enrolled "Internal Medicine - Clinical Cardiac Electrophysiology" physician in Portland, Oregon. He went to Tulane University School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Cardiac Electrophysiology. He is a member of the group practice Providence Health And Services Oregon, Providence Health And Services - Oregon, Providence Health And Services Oregon, Providence Health And Services Oregon and his current practice location is 4400 Ne Halsey St Ste 102, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 962-1000.

Alexi Paul Zemsky is licensed to practice in Oregon (license number MD126045) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1598944928.

Contact Information

Alexi Paul Zemsky, MD
4400 Ne Halsey St Ste 102,
Portland, OR 97213-1545
(503) 962-1000
Not Available

Map and Direction




Physician's Profile

Full NameAlexi Paul Zemsky
GenderMale
SpecialityCardiac Electrophysiology
Experience22 Years
Location4400 Ne Halsey St Ste 102, Portland, Oregon
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Alexi Paul Zemsky attended and graduated from Tulane University School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1598944928
  • Provider Enumeration Date: 11/01/2007
  • Last Update Date: 06/20/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3173677192
  • Enrollment ID: I20090810000651

Medical Identifiers

Medical identifiers for Alexi Paul Zemsky such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598944928NPI-NPPES
500610656MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease MD126045 (Oregon)Secondary
207RC0001XInternal Medicine - Clinical Cardiac Electrophysiology MD126045 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Providence St Vincent Medical CenterPortland, ORHospital
Providence Portland Medical CenterPortland, ORHospital
Providence Willamette Falls Medical CenterOregon city, ORHospital
Providence Milwaukie HospitalMilwaukie, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Health And Services Oregon06481836081344
Providence Health And Services - Oregon529490192251
Providence Health And Services Oregon5395656284115
Providence Health And Services Oregon9335057447137

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Alexi Paul Zemsky allows following entities to bill medicare on his behalf.
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023488343
PECOS PAC ID: 0648183608
Enrollment ID: O20031106000652
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003991845
PECOS PAC ID: 5395656284
Enrollment ID: O20031113000626
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114015971
PECOS PAC ID: 9335057447
Enrollment ID: O20031117000153
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093976243
PECOS PAC ID: 3476450560
Enrollment ID: O20031217000186
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366536963
PECOS PAC ID: 6103728753
Enrollment ID: O20040123000371
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053862714
PECOS PAC ID: 7315856010
Enrollment ID: O20040304001330
Entity NameProvidence Health & Services Oregon
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1255429338
PECOS PAC ID: 7315856010
Enrollment ID: O20061104000324
Entity NameProvidence Health & Services - Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912282369
PECOS PAC ID: 5294901922
Enrollment ID: O20120319000430

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Alexi Paul Zemsky is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Alexi Paul Zemsky, MD
Po Box 3158,
Portland, OR 97208-3158

Ph: (503) 215-6494		Alexi Paul Zemsky, MD
4400 Ne Halsey St Ste 102,
Portland, OR 97213-1545

Ph: (503) 962-1000

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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