MS. JUDY SUN M.D.
NPI 1689659773
Obstetrics & Gynecology in Chicago, IL
About Ms. Judy Sun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. JUDY SUN M.D. (NPI 1689659773) is an individual obstetrics & gynecology provider in Chicago, Illinois, licensed in Illinois (036114649) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Presence Saint Joseph Medical Center, and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Ms. Judy Sun 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 Judy Sun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Joliet, IL 60432
- Reassigned Medicare billing, Illinois enrollment
- 9 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Presence Saint Joseph Medical Center
Acute Care Hospitals · Joliet, ILPalos Community Hospital
Acute Care Hospitals · Palos Heights, ILSilver Cross Hospital And Medical Centers
Acute Care Hospitals · New Lenox, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60605 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.
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 Judy Sun's NPI number?
The NPI number for Judy Sun is 1689659773. It was assigned to this individual provider in the NPPES registry on December 12, 2005.
Where is Judy Sun located?
Judy Sun practices at 47 W Polk St Suite G1, Chicago, IL 60605. The listed phone number is (312) 922-3011.
What is Judy Sun's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Judy Sun enrolled in Medicare?
Yes. Judy Sun 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 Judy Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Judy Sun reassigns Medicare benefits to Suburban Gynecology, LLC (Joliet, 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 Judy Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Judy Sun accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Judy Sun 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 Judy Sun affiliated with any hospitals?
According to CMS data, Judy Sun is affiliated with Presence Saint Joseph Medical Center, Palos Community Hospital and Silver Cross Hospital And Medical Centers.
When was this NPI record last updated?
The NPPES record for Judy Sun was last updated on July 5, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.