JEFFREY D KOPIN M.D.
NPI 1093754970
Internal Medicine in Chicago, IL
About Jeffrey D Kopin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JEFFREY D KOPIN M.D. (NPI 1093754970) is an individual internal medicine provider in Chicago, Illinois and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and is a graduate of Northwestern University Feinberg Medical School (1984).
NPPES Registry Identity
Specialties & Licenses
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
Jeffrey D Kopin 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 Reassignment
Medicare enrollment records show Jeffrey Kopin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 5
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.
Northwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60603 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.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60603
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 Jeffrey Kopin's NPI number?
The NPI number for Jeffrey Kopin is 1093754970. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is Jeffrey Kopin located?
Jeffrey Kopin practices at 20 S Clark St Suite 1100, Chicago, IL 60603. The listed phone number is (312) 926-7443.
What is Jeffrey Kopin's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jeffrey Kopin enrolled in Medicare?
Yes. Jeffrey Kopin 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 organization bills Medicare for Jeffrey Kopin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Kopin reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Jeffrey Kopin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jeffrey Kopin affiliated with any hospitals?
According to CMS data, Jeffrey Kopin is affiliated with Northwestern Lake Forest Hospital and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Jeffrey Kopin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.