DR. SYLVIA CAROL YOON M.D.
NPI 1174513006
Internal Medicine - Nephrology in North Chicago, IL
About Dr. Sylvia Carol Yoon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SYLVIA CAROL YOON M.D. (NPI 1174513006) is an individual nephrology provider in North Chicago, Illinois, licensed in Illinois (036128357) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Highland Park.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Sylvia Carol Yoon 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 Sylvia Yoon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northshore University Healthsystem - Evanston Hospital
Acute Care Hospitals · Evanston, ILSwedish Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60064 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
NORTH CHICAGO, IL 60064
NORTH CHICAGO, IL 60064
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 Sylvia Yoon's NPI number?
The NPI number for Sylvia Yoon is 1174513006. It was assigned to this individual provider in the NPPES registry on October 22, 2005.
Where is Sylvia Yoon located?
Sylvia Yoon practices at 3001 Green Bay Rd, North Chicago, IL 60064. The listed phone number is (847) 688-1900.
What is Sylvia Yoon's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Sylvia Yoon enrolled in Medicare?
Yes. Sylvia Yoon 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 Sylvia Yoon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sylvia Yoon reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, 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 Sylvia Yoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sylvia Yoon accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Sylvia Yoon 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 Sylvia Yoon affiliated with any hospitals?
According to CMS data, Sylvia Yoon is affiliated with Northshore University Healthsystem - Evanston Hospital and Swedish Hospital.
When was this NPI record last updated?
The NPPES record for Sylvia Yoon was last updated on July 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Sylvia Carol Yoon, M.D. · NPI 1174513006
Nephrology physician in North Chicago, Illinois. Individual provider, active in the CMS NPPES registry since October 22, 2005.
## Identity
- **NPI:** 1174513006 (Entity type: Individual)
- **Enumerated:** October 22, 2005
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 036128357 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 3001 GREEN BAY RD, North Chicago, IL 60064-3048
- **Phone:** (847) 688-1900 · **Fax:** (224) 610-3836
## 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:** Endeavor Health Medical Group (NPI 1265695944, Evanston, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** July 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1174513006) · Data from the CMS NPPES public registry.