JOON WOO KIM, M.D., SC.
NPI 1184618209
Internal Medicine - Rheumatology in Grayslake, IL
About Joon Woo Kim, M.d., Sc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOON WOO KIM, M.D., SC. (NPI 1184618209) is a healthcare organization registered as a rheumatology in Grayslake, Illinois and active in the NPI registry since September 2005. The organization lists Joon Woo Kim, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Joon Woo Kim, M.d., Sc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Joon Woo Kim, M.D., Sc., which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Joon Woo Kim, M.D., Sc.'s NPI number?
The NPI number for Joon Woo Kim, M.D., Sc. is 1184618209. It was assigned to this organization in the NPPES registry on September 2, 2005.
Where is Joon Woo Kim, M.D., Sc. located?
Joon Woo Kim, M.D., Sc. is located at 925 Hoffner Drive, Grayslake, IL 60030. The listed phone number is (847) 223-6330.
What is Joon Woo Kim, M.D., Sc.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Joon Woo Kim, M.D., Sc. enrolled in Medicare?
Yes. Joon Woo Kim, M.D., Sc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Joon Woo Kim, M.D., Sc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Rheumatology) reassigns their Medicare billing to Joon Woo Kim, M.D., Sc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Joon Woo Kim, M.D., Sc. was last updated on February 18, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Joon Woo Kim, M.d., Sc. · NPI 1184618209
Rheumatology organization in Grayslake, Illinois. Organization record, active in the CMS NPPES registry since September 2, 2005.
## Identity
- **NPI:** 1184618209 (Entity type: Organization)
- **Enumerated:** September 2, 2005
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **Organization subpart:** No
- **Authorized official:** Joon Kim, PRESIDENT
## Practice location
- **Address:** 925 HOFFNER DRIVE, Grayslake, IL 60030
- **Phone:** (847) 223-6330
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Rheumatology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 18, 2010
- **Other identifiers:** Medicare UPIN G71985; Medicare ID-Type Unspecified 452140
---
Source: [NPI Profile](https://npiprofile.com/npi/1184618209) · Data from the CMS NPPES public registry.