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PROVIDER PROFILE · NPI 1346360146

Susan ChaM.D.

PRACTICEJOHN MUIR HEALTHSee all providers at this practice →
Diagnostic RadiologyWalnut Creek, CAI
CROSS-REFERENCE

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PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
92.8
Quality
78.5
Cost
70.4
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.75%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$88
Payment records
4
By payment type
Food and Beverage$88
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
2,381
Unique beneficiaries
—
Total services
2,917
Distinct HCPCS
15
Medicare payment
$202K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 3,474 Diagnostic Radiology providers in CA — above median (cohort median 2,975).
REFERRAL NETWORK

Where Susan Cha'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). 141 inbound referrers · 296 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
STANFORD HEALTH CARE TRI-VALLEY202349
Jonathan Posin
Diagnostic Radiology · Walnut Creek, CA
143213
Angelo Crudale
Diagnostic Radiology · Walnut Creek, CA
117161
Sunil Gandhi
Diagnostic Radiology · Walnut Creek, CA
98130
Kimberly Blumberg
Diagnostic Radiology · Walnut Creek, CA
96150
Mark Tu
Diagnostic Radiology · Walnut Creek, CA
83133
Amy Lai
Diagnostic Radiology · New York, NY
83120
Michael Brown
Cardiology · Walnut Creek, CA
76114
Daniel Kim
Diagnostic Radiology · Walnut Creek, CA
74115
Ronald Chan
Diagnostic Radiology · Walnut Creek, CA
7299
Andrew Dublin
Interventional Cardiology · Walnut Creek, CA
68105
Eric Chen
Interventional Radiology · Los Angeles, CA
6782
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
JOHN MUIR HEALTH569869
JOHN MUIR HEALTH378555
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
312596
American Medical Response West
Ambulance Service Provider · Concord, CA
215302
Jonathan Posin
Diagnostic Radiology · Walnut Creek, CA
163257
William Hoddick
Diagnostic Radiology · Walnut Creek, CA
159296
North Star Emergency Services, Inc.
Ambulance Service Provider · Livermore, CA
148290
JOHN MUIR HEALTH108126
Amy Lai
Diagnostic Radiology · New York, NY
87140
SIGEL, RICHARD85146
STANFORD HEALTH CARE TRI-VALLEY84148
Sunil Gandhi
Diagnostic Radiology · Walnut Creek, CA
80111
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.