Kenneth A. Krajewski, M.D.
Hematology & Oncology Physician · Grand Rapids, MI
Kenneth A. Krajewski, M.D. is a hematology & oncology physician with a practice address in Grand Rapids, Michigan, and NPI 1154585172, issued on Jul 18, 2008. Check the license (Michigan 4301104456, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Kenneth A. Krajewski
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 4301104456 MI
MD474077 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1534 Groton RD SE, Grand Rapids, MI 49506
- Phone
- (616) 685-5600
- Enumerated
- Jul 18, 2008
- Record last updated
- Feb 26, 2025
- Medicare enrollment
- Enrolled (PECOS I20211122001961); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 340 in Michigan → Look up another NPI →
Verify Kenneth A. Krajewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301104456Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
11 Medicare Part D claims, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through 2 group practices
- Geisinger ClinicDanville, PA
- Mymichigan Medical Center SaultSault Sainte Marie, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth A. Krajewski among 340 hematology & oncology physician records in Michigan
Kenneth A. Krajewski, M.D. is one of 340 hematology & oncology physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.
- NPI issued2008 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2008 · median 2004 among the 206 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Michigan
There are 340 hematology & oncology physician records in Michigan.
All 340 in Michigan → Every provider in Grand Rapids → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mohammad Alhyari, MDGrand Rapids, MI 495031346554912
- Omar Alzarkali, DOGrand Rapids, MI 495031346826229
- Maryann AririguzoGrand Rapids, MI 495031932801388
- Daria BrinzevichGrand Rapids, MI 495031407318827
- Colin Hardin, M.D.Grand Rapids, MI 495031639459860
- Yahya Ibrahim, MDGrand Rapids, MI 495031225562606
- Daniel Isaac, D.O.Grand Rapids, MI 495031326486416
- Michael McLaneGrand Rapids, MI 495031770144792
Common questions
What is Kenneth A. Krajewski, M.D.'s NPI number?
Kenneth A. Krajewski, M.D.'s National Provider Identifier (NPI) is 1154585172, issued on Jul 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth A. Krajewski, M.D. located?
The NPPES record lists a practice address at 1534 Groton RD SE, Grand Rapids, MI, 49506. Phone: (616) 685-5600. Providers update this record themselves, so call before visiting.
How can I verify Kenneth A. Krajewski, M.D.'s license?
NPPES lists Michigan license number 4301104456, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kenneth A. Krajewski, M.D. prescribe under Medicare Part D?
In 2024, Kenneth A. Krajewski, M.D. had 11 Medicare Part D claims; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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 only as counts) 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 9, 2026.