DR. KATHRYN R JOHNS MD
NPI 1891223285
Emergency Medicine in Rockford, IL
About Dr. Kathryn R Johns Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHRYN R JOHNS MD (NPI 1891223285) is an individual emergency medicine provider in Rockford, Illinois, licensed in Illinois (036151740) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with Fhn Memorial Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
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
Dr. Kathryn R Johns Md 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
6Medicare enrollment records show Kathryn Johns reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rockford, IL 61103
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Rockford, IL 61108
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Cepamerica Illinois LLP
- 982 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois enrollment
- 671 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 391 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 478 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 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 3
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.
Fhn Memorial Hospital
Acute Care Hospitals · Freeport, ILAdvocate Condell Medical Center
Acute Care Hospitals · Libertyville, ILJavon Bea Hospital
Acute Care Hospitals · Rockford, ILMercyhealth Hospital & Physician Clinic-Crystal La
Acute Care Hospitals · Crystal Lake, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61103 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCKFORD, IL 61103
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 Kathryn Johns's NPI number?
The NPI number for Kathryn Johns is 1891223285. It was assigned to this individual provider in the NPPES registry on May 30, 2017.
Where is Kathryn Johns located?
Kathryn Johns practices at 2400 N Rockton Ave, Rockford, IL 61103. The listed phone number is (815) 971-5000.
What is Kathryn Johns's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Kathryn Johns enrolled in Medicare?
Yes. Kathryn Johns 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 Kathryn Johns's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Johns reassigns Medicare benefits to 6 organizations: Rockford Health Physicians (Rockford, IL), Cep America - Illinois, LLP (Rockford, IL), Mercy Health System Corporation (Janesville, WI), Freeport Regional Health Care Foundation (Freeport, IL), Freeport Memorial Hospital (Freeport, IL) and 1 more organization, listed in the Medicare section above. 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 Kathryn Johns's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kathryn Johns affiliated with any hospitals?
According to CMS data, Kathryn Johns is affiliated with Fhn Memorial Hospital, Advocate Condell Medical Center, Javon Bea Hospital and Mercyhealth Hospital & Physician Clinic-Crystal La.
When was this NPI record last updated?
The NPPES record for Kathryn Johns was last updated on March 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Kathryn R Johns, MD · NPI 1891223285
Emergency Medicine physician in Rockford, Illinois. Individual provider, active in the CMS NPPES registry since May 30, 2017.
## Identity
- **NPI:** 1891223285 (Entity type: Individual)
- **Enumerated:** May 30, 2017
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036151740 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2400 N ROCKTON AVE, Rockford, IL 61103-3655
- **Phone:** (815) 971-5000
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Rockford Health Physicians (NPI 1023275278, Rockford, IL); Cep America - Illinois, LLP (NPI 1851772321, Rockford, IL); Mercy Health System Corporation (NPI 1598718603, Janesville, WI); Freeport Regional Health Care Foundation (NPI 1457337016, Freeport, IL); Freeport Memorial Hospital (NPI 1447228788, Freeport, IL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** March 31, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1891223285) · Data from the CMS NPPES public registry.