JOHN JOSEPH FARRELL MD
NPI 1043284649
Internal Medicine - Infectious Disease in Peoria, IL
About John Joseph Farrell Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN JOSEPH FARRELL MD (NPI 1043284649) is an individual infectious disease provider in Peoria, Illinois, licensed in Illinois (036111223) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Francis Medical Center, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (1995).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 9
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
John Joseph Farrell 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
3Medicare enrollment records show John Farrell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Peoria, IL 61615
- Reassigned Medicare billing, Illinois enrollment
- 2,944 clinicians in this Medicare group
Peoria, IL 61637
- Reassigned Medicare billing, Illinois enrollment
- 14 clinicians in this Medicare group
Peoria, IL 61605
- Reassigned Medicare billing, Illinois enrollment
- 2,127 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.
Saint Francis Medical Center
Acute Care Hospitals · Peoria, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61637 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 John Farrell's NPI number?
The NPI number for John Farrell is 1043284649. It was assigned to this individual provider in the NPPES registry on February 13, 2006.
Where is John Farrell located?
John Farrell practices at Department Of Internal Medicine 530 NE Glen Oak Drive, Peoria, IL 61637. The listed phone number is (309) 655-7734.
What is John Farrell's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is John Farrell enrolled in Medicare?
Yes. John Farrell 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 John Farrell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Farrell reassigns Medicare benefits to 3 organizations: Osf Multi-Specialty Group (Peoria, IL), Central Illinois Pathology, Sc (Peoria, IL) and Board Of Trustees Of The University Of Illinois (Peoria, 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 John Farrell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Farrell affiliated with any hospitals?
According to CMS data, John Farrell is affiliated with Saint Francis Medical Center.
When was this NPI record last updated?
The NPPES record for John Farrell was last updated on August 5, 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.
# John Joseph Farrell, MD · NPI 1043284649
Infectious Disease physician in Peoria, Illinois. Individual provider, active in the CMS NPPES registry since February 13, 2006.
## Identity
- **NPI:** 1043284649 (Entity type: Individual)
- **Enumerated:** February 13, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 036111223 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** DEPARTMENT OF INTERNAL MEDICINE, 530 NE GLEN OAK DRIVE, Peoria, IL 61637-0001
- **Phone:** (309) 655-7734
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Osf Multi-Specialty Group (NPI 1154908929, Peoria, IL); Central Illinois Pathology, Sc (NPI 1114970761, Peoria, IL); Board Of Trustees Of The University Of Illinois (NPI 1467425322, Peoria, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 1995
## Record status
- **NPPES last updated:** August 5, 2011
- **Other identifiers:** Medicare ID-Type Unspecified 639810 (IL); Other IL0104 (IL); Other 07215036 (IL); and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1043284649) · Data from the CMS NPPES public registry.