MRS. LISSA J DIEFENDORF APN
NPI 1427356336
Clinical Nurse Specialist - Adult Health in Peoria, IL
About Mrs. Lissa J Diefendorf Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. LISSA J DIEFENDORF APN (NPI 1427356336) is an individual adult health provider in Peoria, Illinois, licensed in Illinois (209008169) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, is affiliated with Methodist Medical Center Of Illinois, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Lissa J Diefendorf 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 Reassignments
4Medicare enrollment records show Lissa Diefendorf reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Peoria, IL 61636
- Reassigned Medicare billing, Illinois enrollment
- 693 clinicians in this Medicare group
Peoria, IL 61614
- Reassigned Medicare billing, Illinois enrollment
- 349 clinicians in this Medicare group
Elmwood, IL 61529
- Reassigned Medicare billing, Illinois enrollment
Urbana, IL 61801
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Carle Health Care Incorporated
- 2,516 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 4
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.
Methodist Medical Center Of Illinois
Acute Care Hospitals · Peoria, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61604 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Lissa Diefendorf's NPI number?
The NPI number for Lissa Diefendorf is 1427356336. It was assigned to this individual provider in the NPPES registry on March 2, 2011.
Where is Lissa Diefendorf located?
Lissa Diefendorf practices at 403 W Corrington Ave, Peoria, IL 61604. The listed phone number is (309) 222-5736.
What is Lissa Diefendorf's specialty?
The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Adult Health, with taxonomy code 364SA2200X.
Is Lissa Diefendorf enrolled in Medicare?
Yes. Lissa Diefendorf 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 Lissa Diefendorf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lissa Diefendorf reassigns Medicare benefits to 4 organizations: Methodist Medical Center Of Illinois (Peoria, IL), Proctor Health Systems (Peoria, IL), (Elmwood, IL) and Carle Health Medical Group (Urbana, 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 Lissa Diefendorf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Lissa Diefendorf affiliated with any hospitals?
According to CMS data, Lissa Diefendorf is affiliated with Methodist Medical Center Of Illinois.
When was this NPI record last updated?
The NPPES record for Lissa Diefendorf was last updated on March 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.