DR. J B JOO M.D.
NPI 1558337089
Colon & Rectal Surgery in Aurora, IL
About Dr. J B Joo M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. J B JOO M.D. (NPI 1558337089) is an individual colon & rectal surgery provider in Aurora, Illinois, licensed in Illinois (036102434) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Copley Memorial Hospital, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. J B Joo M.d. 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 J Joo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aurora, IL 60504
- Reassigned Medicare billing, Illinois enrollment
- 79 clinicians in this Medicare group
Aurora, IL 60504
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush-Copley Medical Group Nfp
- 171 clinicians in this Medicare group
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 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 10
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Copley Memorial Hospital
Acute Care Hospitals · Aurora, ILRush University Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60504 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
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
AURORA, IL 60504
AURORA, IL 60504
AURORA, IL 60504
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 J Joo's NPI number?
The NPI number for J Joo is 1558337089. It was assigned to this individual provider in the NPPES registry on February 24, 2006.
Where is J Joo located?
J Joo practices at 2040 Ogden Ave Ste. 115, Aurora, IL 60504. The listed phone number is (630) 585-0200.
What is J Joo's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is J Joo enrolled in Medicare?
Yes. J Joo 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 J Joo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), J Joo reassigns Medicare benefits to 3 organizations: Copley Memorial Hospital, Inc. (Aurora, IL), Rush-Copley Medical Group (Aurora, IL) and Rush University Medical Center (Oak Brook, 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 J Joo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does J Joo accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list J Joo 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 J Joo affiliated with any hospitals?
According to CMS data, J Joo is affiliated with Copley Memorial Hospital and Rush University Medical Center.
When was this NPI record last updated?
The NPPES record for J Joo was last updated on September 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. J B Joo, M.D. · NPI 1558337089
Colon & Rectal Surgery physician in Aurora, Illinois. Individual provider, active in the CMS NPPES registry since February 24, 2006.
## Identity
- **NPI:** 1558337089 (Entity type: Individual)
- **Enumerated:** February 24, 2006
- **Primary specialty:** Colon & Rectal Surgery · taxonomy 208C00000X
- **State license:** 036102434 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2040 OGDEN AVE, STE. 115, Aurora, IL 60504-7206
- **Phone:** (630) 585-0200
## 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): Copley Memorial Hospital, Inc. (NPI 1619466034, Aurora, IL); Rush-Copley Medical Group (NPI 1013018340, Aurora, IL); Rush University Medical Center (NPI 1801375696, Oak Brook, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 1996
## Record status
- **NPPES last updated:** September 12, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1558337089) · Data from the CMS NPPES public registry.