KENNETH A KRAJEWSKI M.D.
NPI 1154585172
Internal Medicine - Hematology & Oncology in Grand Rapids, MI
About Kenneth A Krajewski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KENNETH A KRAJEWSKI M.D. (NPI 1154585172) is an individual hematology & oncology provider in Grand Rapids, Michigan, licensed in Michigan (4301104456) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Chippewa County War Memorial Hospital, and maintains a secondary practice location in Danville.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Kenneth A Krajewski M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Kenneth Krajewski reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kincheloe, MI 49788
- Reassigned Medicare billing, Michigan enrollment
- 185 clinicians in this Medicare group
Philipsburg, PA 16866
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 clinicians in this Medicare group
Lock Haven, PA 17745
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,405 clinicians in this Medicare group
Williamsport, PA 17701
- Reassigned Medicare billing, Pennsylvania enrollment
- 31 clinicians in this Medicare group
Sayre, PA 18840
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Guthrie Medical Group PC
- 2 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chippewa County War Memorial Hospital
Acute Care Hospitals · Sault Sainte Marie, MIGeisinger-Lewistown Hospital
Acute Care Hospitals · Lewistown, PARobert Packer Hospital
Acute Care Hospitals · Sayre, PAUpmc Cole
Critical Access Hospitals · Coudersport, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49506 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Kenneth Krajewski's NPI number?
The NPI number for Kenneth Krajewski is 1154585172. It was assigned to this individual provider in the NPPES registry on July 18, 2008.
Where is Kenneth Krajewski located?
Kenneth Krajewski practices at 1534 Groton Rd SE, Grand Rapids, MI 49506. The listed phone number is (616) 685-5600.
What is Kenneth Krajewski's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Kenneth Krajewski enrolled in Medicare?
Yes. Kenneth Krajewski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Kenneth Krajewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Krajewski reassigns Medicare benefits to 5 organizations: Mymichigan Medical Center Sault (Kincheloe, MI), Geisinger Clinic (Philipsburg, PA), Geisinger-Hm Joint Venture, LLC (Lock Haven, PA), Susquehanna Physician Services (Williamsport, PA) and Guthrie Medical Group, P.C. (Sayre, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kenneth Krajewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kenneth Krajewski accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Kenneth Krajewski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Kenneth Krajewski affiliated with any hospitals?
According to CMS data, Kenneth Krajewski is affiliated with Chippewa County War Memorial Hospital, Geisinger-Lewistown Hospital, Robert Packer Hospital and Upmc Cole.
When was this NPI record last updated?
The NPPES record for Kenneth Krajewski was last updated on February 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Kenneth A Krajewski, M.D. · NPI 1154585172
Hematology & Oncology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since July 18, 2008.
## Identity
- **NPI:** 1154585172 (Entity type: Individual)
- **Enumerated:** July 18, 2008
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 4301104456 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1534 GROTON RD SE, Grand Rapids, MI 49506-4754
- **Phone:** (616) 685-5600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Mymichigan Medical Center Sault (NPI 1851434419, Kincheloe, MI); Geisinger Clinic (NPI 1811948367, Philipsburg, PA); Geisinger-Hm Joint Venture, LLC (NPI 1427604222, Lock Haven, PA); Susquehanna Physician Services (NPI 1700962701, Williamsport, PA); Guthrie Medical Group, P.C. (NPI 1245246644, Sayre, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Louisville School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** February 26, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1154585172) · Data from the CMS NPPES public registry.