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PROVIDER PROFILE · NPI 1033240411

Gene ChangM.D.

PRACTICEI W CHANG MD PROFESSIONAL CORPSee all providers at this practice →
GastroenterologyMunster, INI
CROSS-REFERENCE

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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (3)

CCN 150008
Hospital
CCN 150125
Hospital
CCN 153045
Inpatient rehabilitation facility
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
954
Unique beneficiaries
—
Total services
981
Distinct HCPCS
9
Medicare payment
$118K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 249 Gastroenterology providers in IN — above median (cohort median 598).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
835
Beneficiaries
—
Total drug cost
$107K
Distinct drugs
8
Brand share
38.8%
Top prescribed drugs
Pantoprazole Sodium418 claims
Sodium, Potassium,mag Sulfates182 claims
Sod Sulf/Pot Chloride/Mag Sulf79 claims
Omeprazole56 claims
Peg3350/Sod Sulf,bicarb,cl/Kcl37 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$3K
Payment records
44
By payment type
Grant$2K
Food and Beverage$1K
REFERRAL NETWORK

Where Gene 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). 68 inbound referrers · 139 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MUNSTER MEDICAL RESEARCH FOUNDATION INC6722,738
John Gustaitis
Diagnostic Radiology · Munster, IN
90197
Krishnakant Raiker
Cardiology · Munster, IN
58170
Shawn Kenney
Diagnostic Radiology · Munster, IN
55120
GOLDBERG, RUTH55111
Feng Zhang
Diagnostic Radiology · Munster, IN
5388
Edward Bok
Diagnostic Radiology · Saint Louis, MO
48170
Sheeyip Chan
Cardiology · Munster, IN
4598
Devang Doshi
Diagnostic Radiology · Munster, IN
44103
Ayis Pyrros
Diagnostic Radiology · Tinley Park, IL
3876
Kamaldeep Heyer
Emergency Medicine · Burr Ridge, IL
3463
SMITH, C3369
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MUNSTER MEDICAL RESEARCH FOUNDATION INC3581,343
John Gustaitis
Diagnostic Radiology · Munster, IN
109214
PROMPT MEDICAL TRANSPORTATION INC90197
Shashidhar Divakaruni
Cardiology · Munster, IN
85173
Jonathon Lee
Diagnostic Radiology · Munster, IN
85178
Justin Spackey
Diagnostic Radiology · Maywood, IL
81167
Shawn Kenney
Diagnostic Radiology · Munster, IN
76154
Mei Li
Pathology · Munster, IN
76158
Edward Bok
Diagnostic Radiology · Saint Louis, MO
67217
Zhuowen Zeng
Pathology · Munster, IN
64136
Yiqing Chi
Pathology · Munster, IN
60124
Christopher Parsons
Diagnostic Radiology · Munster, IN
58100
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.