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PROVIDER PROFILE · NPI 1780692517

John ChangM.D.,FACP,FACG

GastroenterologyTampa, FLI
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
863
Beneficiaries
—
Total drug cost
$147K
Distinct drugs
16
Brand share
22.8%
Top prescribed drugs
Famotidine307 claims
Pantoprazole Sodium147 claims
Dicyclomine Hcl112 claims
Linaclotide49 claims
Diphenoxylate Hcl/Atropine46 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$612
Payment records
22
By payment type
Food and Beverage$612
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
503
Unique beneficiaries
—
Total services
614
Distinct HCPCS
9
Medicare payment
$62K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,135 Gastroenterology providers in FL — top quintile (cohort median 817).
REFERRAL NETWORK

Where John 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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
WEST FLORIDA - TCH, LLC91203
Amir Awad
Gastroenterology · Tampa, FL
46101
FLORIDA SURGERY CENTER ENTERPRISES LLC4590
BOGGIO, RAUL3490
Laboratory Corporation Of America
Clinical Laboratory · Tampa, FL
2275
PEREZ-MILLAN, ROBERTO2170
Pedro Troya
Endocrinology · Tampa, FL
1340
Hillsborough County Florida Board Of County Commissioners
Ambulance Service Provider · Tampa, FL
1117
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.