KLARA MAJOR APRN, CNP
NPI 1093229858
Nurse Practitioner in Winfield, IL
About Klara Major Aprn, Cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KLARA MAJOR APRN, CNP (NPI 1093229858) is an individual nurse practitioner in Winfield, Illinois, licensed in Illinois (209016578) and active in the NPI registry since November 2017. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and maintains a secondary practice location in Libertyville.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Klara Major Aprn, Cnp 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
3Medicare enrollment records show Klara Major reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 clinicians in this Medicare group
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 5
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Klara Major's NPI number?
The NPI number for Klara Major is 1093229858. It was assigned to this individual provider in the NPPES registry on November 30, 2017.
Where is Klara Major located?
Klara Major practices at 25 N Winfield Rd Ste 2202, Winfield, IL 60190. The listed phone number is (630) 933-4847.
What is Klara Major's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Klara Major enrolled in Medicare?
Yes. Klara Major 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 Klara Major's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Klara Major reassigns Medicare benefits to 3 organizations: Central Dupage Physician Group (Carol Stream, IL), Advocate Health And Hospitals Corporation (Downers Grove, IL) and Northwestern Medical Faculty Foundation (Carol Stream, IL). 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 Klara Major's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Klara Major affiliated with any hospitals?
According to CMS data, Klara Major is affiliated with Northwestern Medicine Central Dupage Hospital.
When was this NPI record last updated?
The NPPES record for Klara Major was last updated on January 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.