DAVID YOUNGSIK JUN MD
NPI 1093735144
Internal Medicine in Park Ridge, IL
About David Youngsik Jun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID YOUNGSIK JUN MD (NPI 1093735144) is an individual internal medicine provider in Park Ridge, Illinois, licensed in Illinois (036078305) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Lutheran General Hospital, and is a graduate of Other (1978).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
David Youngsik Jun Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show David Jun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
Chicago, IL 60634
- Reassigned Medicare billing, Illinois enrollment
- 29 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 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILAdvocate Good Samaritan Hospital
Acute Care Hospitals · Downers Grove, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60068 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 6
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.
PARK RIDGE, IL 60068
PARK RIDGE, IL 60068
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 David Jun's NPI number?
The NPI number for David Jun is 1093735144. It was assigned to this individual provider in the NPPES registry on July 20, 2006.
Where is David Jun located?
David Jun practices at 2604 Dempster St Suite #403, Park Ridge, IL 60068. The listed phone number is (847) 627-5206.
What is David Jun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is David Jun enrolled in Medicare?
Yes. David Jun is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for David Jun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Jun reassigns Medicare benefits to 2 organizations: Hope Med Clinic, S.C. (Park Ridge, IL) and Metropolitan Healthcare Partners PLLC (Chicago, 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 David Jun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Jun accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list David Jun 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 David Jun affiliated with any hospitals?
According to CMS data, David Jun is affiliated with Advocate Lutheran General Hospital, Northwestern Medicine Central Dupage Hospital and Advocate Good Samaritan Hospital.
When was this NPI record last updated?
The NPPES record for David Jun was last updated on December 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.