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PROVIDER PROFILE · NPI 1003015462

Chun ChangM.D.

Emergency MedicineModesto, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

CCN 050226
Hospital
CCN 050231
Hospital
CCN 050300
Hospital
CCN 050586
Hospital
CCN 050737
Hospital
REFERRAL NETWORK

Where Chun 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). 23 inbound referrers · 82 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Riggs Ambulance Service
Ambulance Service Provider · Merced, CA
106777
Mark Wagner
Diagnostic Radiology · Madera, CA
47170
Nicolas Delapena
Infectious Disease · Merced, CA
2798
Thanh Nguyen
Nephrology · Merced, CA
2473
Charlie Kano
Family Practice · Merced, CA
2379
GOLDEN VALLEY HEALTH CENTER2257
Sunit Patel
Pulmonary Disease · Merced, CA
2154
Binh Dang
Family Practice · Merced, CA
18149
Leonard Oestreicher
Family Practice · Merced, CA
1873
Hanimireddy Lakireddy
Cardiology · Merced, CA
1742
John Kanu
Emergency Medicine · Turlock, CA
17102
Muhammad Shabbir
Family Practice · Merced, CA
1762
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
DIGNITY HEALTH5071,783
Riggs Ambulance Service
Ambulance Service Provider · Merced, CA
2841,345
Deborah Hellinger
Diagnostic Radiology · Glenwood Springs, CO
228698
Mark Wagner
Diagnostic Radiology · Madera, CA
187590
Gerald Main
Diagnostic Radiology · Cambria, CA
132390
ROOT, WESLEY125394
NESPER, MATTHEW119283
Unilab Corporation
Clinical Laboratory · Sacramento, CA
109362
Satnam Uppal
Internal Medicine · Merced, CA
54378
Sunit Patel
Pulmonary Disease · Merced, CA
53153
Muhammad Shabbir
Family Practice · Merced, CA
53208
Shahid Siddiqui
Internal Medicine · Lancaster, CA
48235
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.
QUALITY · MIPS · 2024
Final MIPS score
96.7
Quality
90.0
Cost
78.4
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
0.91%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
571
Beneficiaries
—
Total drug cost
$4K
Distinct drugs
20
Brand share
27.1%
Top prescribed drugs
Ibuprofen93 claims
Cephalexin57 claims
Ondansetron54 claims
Methylprednisolone46 claims
Prednisone40 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
915
Unique beneficiaries
—
Total services
949
Distinct HCPCS
6
Medicare payment
$93K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$198
Payment records
5
By payment type
Food and Beverage$198