Skip to content
NPISignal

Individual Healthcare Provider

Kenneth A Krajewski, M.D.

NPI Record: ActiveInternal Medicine — Hematology & Oncology
NPI1154585172
Grand Rapids, Michigan

Provider's NPPES record last updated: February 26, 2025

Overview

Entity Type
Individual Healthcare Provider
NPI
1154585172
Primary Specialty
Internal Medicine — Hematology & Oncology
Practice Location
Grand Rapids, Michigan
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 18, 2026, 12:26 PM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Internal Medicine

    Hematology & Oncology

    Allopathic & Osteopathic Physicians

    Primary

    An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

    Taxonomy code 207RH0003X

Provider-Reported License Information

Internal Medicine (Michigan)
4301104456
Internal Medicine (Pennsylvania)
MD474077
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

1534 Groton Rd Se

Grand Rapids, Michigan 49506-4754

Phone: (616) 685-5600

Additional Practice Location

100 N Academy Ave

Danville, Pennsylvania 17822-9800

Phone: (570) 271-6045

Fax: (570) 271-6542

Record Information

Enumeration Date
July 18, 2008
Provider's NPPES Record Last Updated
February 26, 2025
Certification Date
February 26, 2025
NPISignal NPPES Dataset
August 2026

See Something Wrong?

Incorrect provider information

Everything on this page comes directly from the NPPES data CMS publishes. NPISignal cannot edit a provider's record — only the provider or organization can, directly through NPPES.

Update a record through NPPES

Something wrong with this page?

If NPISignal is displaying this data incorrectly — a formatting error, a broken link, a mismatch with the source file — let us know.

Report a display issue