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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GRACE Y SUN MD
NPI 1033796479
Radiology - Radiation Oncology in Orland Park, IL

Active since March 24, 2021
15300 WEST AVE # LL, ORLAND PARK, IL 60462(708) 448-9393(708) 448-7530 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 13, 2026, Jul 11, 2022, Mar 24, 2021 (3 updates tracked since 2021).

About Grace Y Sun Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRACE Y SUN MD (NPI 1033796479) is an individual radiation oncology provider in Orland Park, Illinois, licensed in Illinois (036181224) and active in the NPI registry since March 2021. She maintains a secondary practice location in Ann Arbor.

NPPES Registry Identity

NPI1033796479
Entity TypeIndividualFemale
Primary Taxonomy2085R0001X
Provider Legal NameGRACE Y SUNCredential: MD
Location Address15300 WEST AVE # LLOrland Park, IL 60462-4600
Mailing Address15300 West AveOrland Park, IL 60462-4600 · (708) 448-9393
Phone(708) 448-9393
Fax(708) 448-7530
Sole ProprietorNo
Enumeration DateMarch 24, 2021
Last NPPES UpdateAugust 13, 20263 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1033796479 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License✔ Licensed in IL · 036181224
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
15300 WEST AVE # LL, Orland Park, IL 60462
Open in Google Maps ↗

Secondary Practice Location 1

Location 11500 E Medical Center DrAnn Arbor, MI 48109-5000 · Phone (734) 936-4300

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. KRISTINA NANCY HAJEK PA-C
Physician Assistant
15300 WEST AVE # LL
ORLAND PARK, IL 60462
Cook County (708) 923-5173
MS. HELEN SKRZECZ APRN, CNP
Nurse Practitioner (Family)
15300 WEST AVE # LL
ORLAND PARK, IL 60462
Cook County (708) 923-5550

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 Grace Sun's NPI number?

The NPI number for Grace Sun is 1033796479. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Where is Grace Sun located?

Grace Sun practices at 15300 West Ave # Ll, Orland Park, IL 60462. The listed phone number is (708) 448-9393.

What is Grace Sun's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

When was this NPI record last updated?

The NPPES record for Grace Sun was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.