KATHERINE ANNE SCHLESINGER APN
NPI 1821635566
Nurse Practitioner in Rockford, IL
About Katherine Anne Schlesinger Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE ANNE SCHLESINGER APN (NPI 1821635566) is an individual nurse practitioner in Rockford, Illinois, licensed in Illinois (209017465) and active in the NPI registry since December 2019. She is enrolled in Medicare PECOS, is affiliated with Saint Anthony Medical Center, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
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
Katherine Anne Schlesinger Apn 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 Reassignment
Medicare enrollment records show Katherine Schlesinger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Peoria, IL 61615
- Reassigned Medicare billing, Illinois enrollment
- 2,944 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 2
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.
Saint Anthony Medical Center
Acute Care Hospitals · Rockford, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61108 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 4
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 Katherine Schlesinger's NPI number?
The NPI number for Katherine Schlesinger is 1821635566. It was assigned to this individual provider in the NPPES registry on December 2, 2019.
Where is Katherine Schlesinger located?
Katherine Schlesinger practices at 5668 E State St Ste 1000, Rockford, IL 61108. The listed phone number is (815) 229-7580.
What is Katherine Schlesinger's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Katherine Schlesinger enrolled in Medicare?
Yes. Katherine Schlesinger 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 organization bills Medicare for Katherine Schlesinger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Schlesinger reassigns Medicare benefits to Osf Multi-Specialty Group (Peoria, IL). The 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 Katherine Schlesinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Schlesinger accept?
Health plans from Dean Health Plan list Katherine Schlesinger 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 Katherine Schlesinger affiliated with any hospitals?
According to CMS data, Katherine Schlesinger is affiliated with Saint Anthony Medical Center.
When was this NPI record last updated?
The NPPES record for Katherine Schlesinger was last updated on March 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Katherine Anne Schlesinger, APN · NPI 1821635566
Nurse Practitioner physician in Rockford, Illinois. Individual provider, active in the CMS NPPES registry since December 2, 2019.
## Identity
- **NPI:** 1821635566 (Entity type: Individual)
- **Enumerated:** December 2, 2019
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 209017465 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 5668 E STATE ST STE 1000, Rockford, IL 61108-2464
- **Phone:** (815) 229-7580 · **Fax:** (815) 229-7585
## 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:** Osf Multi-Specialty Group (NPI 1154908929, Peoria, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** March 19, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1821635566) · Data from the CMS NPPES public registry.