What is Grace Chang's specialty?

Grace Chang (NPI 1639335029) is a Medicare-billing provider whose primary specialty is General Surgery in Downers Grove, IL.

Where does Grace Chang practice?

Grace Chang practices in Downers Grove, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1639335029.

How much does Medicare pay Grace Chang?

Grace Chang (NPI 1639335029) received approximately $13K in total Medicare Part B payments, serving 34 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639335029

Grace ChangMD

General SurgeryDowners Grove, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$7K

Peer benchmark

Total Medicare services vs. 756 General Surgery providers in IL — bottom quintile (cohort median 318).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$139

Payment records

By payment type

Food and Beverage$139

Top paying entities

Food and Beverage$139

REFERRAL NETWORK

Where Grace Chang's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 12 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SCHULTZ, KURT	38	98
Michael Iwanicki General Surgery · Downers Grove, IL	36	67
Liza Lopez Diagnostic Radiology · Downers Grove, IL	36	118
Aheed Siddiqi Diagnostic Radiology · Downers Grove, IL	31	67
Rajeev Bhorade Diagnostic Radiology · Elmhurst, IL	27	64
Geoffrey Chun Diagnostic Radiology · Downers Grove, IL	20	47
Amy Stewart General Surgery · Oak Lawn, IL	18	29
PARAMEDIC SERVICES OF ILLINOIS INC	16	28
COLE, JAMES	14	24
Robert King Internal Medicine · Downers Grove, IL	12	120
Donald Steiner Emergency Medicine · Downers Grove, IL	11	15
Superior Air-Ground Ambulance Service, Inc Ambulance Service Provider · Elmhurst, IL	11	15

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events