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PROVIDER PROFILE · NPI 1255497251

John Duffy

Psychiatry & NeurologySanta Ana, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
72
Beneficiaries
—
Total drug cost
$1K
Distinct drugs
5
Brand share
66.7%
Top prescribed drugs
Bupropion Hcl19 claims
Divalproex Sodium18 claims
Escitalopram Oxalate12 claims
Quetiapine Fumarate12 claims
Memantine Hcl11 claims
MEDICARE UTILIZATION · PART B · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$2K
Payment records
2
By payment type
Consulting Fee$2K
Food and Beverage$125
Top paying entities
Consulting Fee$2K
Food and Beverage$125
REFERRAL NETWORK

Where John Duffy'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). 9 inbound referrers · 20 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MANN, PAVANINDER54876
Amor Del Mundo
Psychiatry · Tustin, CA
51140
Unilab Corporation
Clinical Laboratory · West Hills, CA
3580
Pin-Hung Hsieh
Internal Medicine · Tustin, CA
31173
Christopher Holden
Family Practice · Orange, CA
27551
CHAPMAN GLOBAL MEDICAL CENTER, INC1935
Vinod Malhotra
Cardiology · Fountain Valley, CA
1377
Harpreet Singh
Cardiology · Fountain Valley, CA
1129
David Thomas
Emergency Medicine · Placentia, CA
1122
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MANN, PAVANINDER651,568
Amor Del Mundo
Psychiatry · Tustin, CA
54138
CHAPMAN GLOBAL MEDICAL CENTER INC.4367
Pin-Hung Hsieh
Internal Medicine · Tustin, CA
32181
Frank Badin
Internal Medicine · Santa Ana, CA
30143
Kan-Di-Ki Llc
Portable X-Ray Supplier · North Hollywood, CA
30121
Filyn Corporation
Ambulance Service Provider · Anaheim, CA
2881
Christopher Holden
Family Practice · Orange, CA
25708
Christopher Heitland
Psychiatry · Santa Ana, CA
2474
Martin Wieler
Diagnostic Radiology · Santa Ana, CA
1857
Glenn Groat
Diagnostic Radiology · Fort Myers, FL
1845
Alfred Sein
Diagnostic Radiology · Los Angeles, CA
1758
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.