JILL MARCUS M.D.
NPI 1285165795
Family Medicine in Chicago, IL
About Jill Marcus M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JILL MARCUS M.D. (NPI 1285165795) is an individual family medicine provider in Chicago, Illinois, licensed in Illinois (1285165795) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and is a graduate of Rush Medical College Of Rush University (2017).
NPPES Registry Identity
Specialties & Licenses
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
Jill Marcus 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 Jill Marcus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60612
- 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 7
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rush Oak Park Hospital
Acute Care Hospitals · Oak Park, ILRush University Medical Center
Acute Care Hospitals · Chicago, ILAdvocate Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60657 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 2
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.
CHICAGO, IL 60657
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 Jill Marcus's NPI number?
The NPI number for Jill Marcus is 1285165795. It was assigned to this individual provider in the NPPES registry on March 26, 2017.
Where is Jill Marcus located?
Jill Marcus practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.
What is Jill Marcus's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Jill Marcus enrolled in Medicare?
Yes. Jill Marcus 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 Jill Marcus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jill Marcus reassigns Medicare benefits to Rush University Medical Center (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 Jill Marcus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jill Marcus accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Jill Marcus 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 Jill Marcus affiliated with any hospitals?
According to CMS data, Jill Marcus is affiliated with Rush Oak Park Hospital, Rush University Medical Center, Advocate Illinois Masonic Medical Center and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Jill Marcus was last updated on December 10, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Jill Marcus, M.D. · NPI 1285165795
Family Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 26, 2017.
## Identity
- **NPI:** 1285165795 (Entity type: Individual)
- **Enumerated:** March 26, 2017
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 1285165795 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 836 W WELLINGTON AVE, Chicago, IL 60657-5147
- **Phone:** (773) 975-1600
## 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:** Rush University Medical Center (NPI 1184269425, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2017
## Record status
- **NPPES last updated:** December 10, 2018
---
Source: [NPI Profile](https://npiprofile.com/npi/1285165795) · Data from the CMS NPPES public registry.