WOOSUK STEVE YOON M.D.
NPI 1295844934
Ophthalmology in Rockford, IL
About Woosuk Steve Yoon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WOOSUK STEVE YOON M.D. (NPI 1295844934) is an individual ophthalmology provider in Rockford, Illinois, licensed in Illinois (036-102401) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Anthony Medical Center, and is a graduate of New York Medical College (1995).
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 and accepts Medicare assignment
Woosuk Steve 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 Woosuk Yoon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Loves Park, IL 61111
- Reassigned Medicare billing, Illinois enrollment
- 7 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 11
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.
Saint Anthony Medical Center
Acute Care Hospitals · Rockford, ILJavon Bea Hospital
Acute Care Hospitals · Rockford, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61108 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
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCKFORD, IL 61108
ROCKFORD, IL 61108
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 Woosuk Yoon's NPI number?
The NPI number for Woosuk Yoon is 1295844934. It was assigned to this individual provider in the NPPES registry on August 29, 2006.
Where is Woosuk Yoon located?
Woosuk Yoon practices at 4777 E State St, Rockford, IL 61108. The listed phone number is (815) 227-0077.
What is Woosuk Yoon's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Woosuk Yoon enrolled in Medicare?
Yes. Woosuk 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 Woosuk Yoon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Woosuk Yoon reassigns Medicare benefits to Rockford Eye & Laser Center Ltd. (Loves Park, 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 Woosuk Yoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Woosuk Yoon accept?
Health plans from MercyCare, MercyCare Health Plans and Quartz list Woosuk 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 Woosuk Yoon affiliated with any hospitals?
According to CMS data, Woosuk Yoon is affiliated with Saint Anthony Medical Center and Javon Bea Hospital.
When was this NPI record last updated?
The NPPES record for Woosuk Yoon was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Woosuk Steve Yoon, M.D. · NPI 1295844934
Ophthalmology physician in Rockford, Illinois. Individual provider, active in the CMS NPPES registry since August 29, 2006.
## Identity
- **NPI:** 1295844934 (Entity type: Individual)
- **Enumerated:** August 29, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 036-102401 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4777 E STATE ST, Rockford, IL 61108-2273
- **Phone:** (815) 227-0077 · **Fax:** (815) 227-5886
## 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:** Rockford Eye & Laser Center Ltd. (NPI 1073015434, Loves Park, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 1995
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN H00491 (IL); Medicare ID-Type Unspecified 204470 (IL)
---
Source: [NPI Profile](https://npiprofile.com/npi/1295844934) · Data from the CMS NPPES public registry.