DR. YONG CHUL CHUN MD
NPI 1417968132
Internal Medicine in Chicago, IL
About Dr. Yong Chul Chun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. YONG CHUL CHUN MD (NPI 1417968132) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036-053060) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and holds a CLIA Microscopy certificate valid through August 18, 2027.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Yong Chul Chun Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Yong Chun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60625
- Reassigned Medicare billing, Illinois enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 14D0875333
Yong C Chun MD Sc · Chicago, ILAreas of Expertise CMS Part B claims 9
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60625 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 9
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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Yong Chun's NPI number?
The NPI number for Yong Chun is 1417968132. It was assigned to this individual provider in the NPPES registry on August 10, 2006.
Where is Yong Chun located?
Yong Chun practices at 3755 W Lawrence Ave, Chicago, IL 60625. The listed phone number is (773) 539-5333.
What is Yong Chun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Yong Chun enrolled in Medicare?
Yes. Yong Chun is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Yong Chun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yong Chun reassigns Medicare benefits to Yong Chul Chun, M.D., S.C. (Chicago, IL). The 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 Yong Chun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does Yong Chun hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 14D0875333) is associated with this NPI, valid through August 18, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Yong Chun accept?
Health plans from Oscar Health list Yong Chun 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.
When was this NPI record last updated?
The NPPES record for Yong Chun was last updated on October 27, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.