Marvin Kajy, M.D.
Cardiovascular Disease Physician · Grand Rapids, MI
Marvin Kajy, M.D. is a cardiovascular disease physician with a practice address in Grand Rapids, Michigan, and NPI 1346774981, issued on Apr 19, 2017. Check the license (Michigan 4301501728, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Marvin Kajy
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 4301501728 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (248) 483-1731
- Enumerated
- Apr 19, 2017
- Entity
- Type 1 · individual
Also registered at 100 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ghassan Al Nabhan, M.D.Internal Medicine Physician1326458068
- Zain AlajjouriEmergency Medicine Physician1366183295
Verify Marvin Kajy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine
Search for license 4301501728Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
97% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
78 Medicare Part D claims for 25 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium11 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: $7,121.72
71 payments, mostly food and beverage; the largest payer was Abbott Laboratories. The 16,686 providers of this specialty with any payment received $3,819.56 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.
One hospital or facility affiliation
- Halo Medical Group PLLCWarren, MI
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 Michigan
There are 860 cardiovascular disease physician records in Michigan.
Other cardiovascular disease physician records in Michigan
- Wissam Abdallah, M.D.Grand Rapids, MI1043410145
- Asrar Abdou, MDDetroit, MI1578091641
- Michael Abdul-Malek, D.O.Dearborn Heights, MI1396935946
- Khaled Abdul-Nour, M.D.Detroit, MI1184792608
- Madar Abed, MDFlushing, MI1235165275
- George Abela, M.D.East Lansing, MI1629012299
- Aiden Abidov, MD, PHDDetroit, MI1619181427
- Victor Abiragi, MDSt Clair Shores, MI1447254248
- Mohammed Abu-Mahfouz, MDDetroit, MI1992873418
- Hossam Abubakar, M.DLansing, MI1386095750
Common questions
What is Marvin Kajy, M.D.'s NPI number?
Marvin Kajy, M.D.'s National Provider Identifier (NPI) is 1346774981, issued on Apr 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Marvin Kajy, M.D. located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (248) 483-1731. Providers update this record themselves, so call before visiting.
How can I verify Marvin Kajy, M.D.'s license?
NPPES lists Michigan license number 4301501728, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marvin Kajy, M.D. prescribe under Medicare Part D?
In 2024, Marvin Kajy, M.D. had 78 Medicare Part D claims for 25 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments, the HHS-OIG exclusion list) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.