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PROVIDER PROFILE · NPI 1912992330

Alan ChangMD

PRACTICECENTRAL BUCKS SPECIALISTSSee all providers at this practice →
GastroenterologyDoylestown, PAI
CROSS-REFERENCE

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REFERRAL NETWORK

Where Alan 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). 50 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
DOYLESTOWN HOSPITAL3351,139
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Norristown, PA
73235
Paul Adelizzi
Diagnostic Radiology · Doylestown, PA
63149
Ronald Costanzo
Diagnostic Radiology · Doylestown, PA
47103
Joseph Kim
Gastroenterology · Sherman, TX
45161
Linda Barnhurst
Diagnostic Radiology · Doylestown, PA
45104
WILSON, DALE4487
Kevin Fillmore
Diagnostic Radiology · Doylestown, PA
3671
Francis Grzywacz
Cardiology · Doylestown, PA
3497
Louis Morsbach
Internal Medicine · Doylestown, PA
3487
David Sheehan
Interventional Radiology · Doylestown, PA
3386
Steven Mcdonald
Anesthesiology · Doylestown, PA
3176
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,159
Unique beneficiaries
—
Total services
1,256
Distinct HCPCS
15
Medicare payment
$119K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 771 Gastroenterology providers in PA — top quintile (cohort median 585).
PRESCRIBING · PART D · 2024
Total Rx claims
1,134
Beneficiaries
—
Total drug cost
$752K
Distinct drugs
21
Brand share
28.0%
Top prescribed drugs
Omeprazole342 claims
Pantoprazole Sodium166 claims
Famotidine153 claims
Sod Sulf/Pot Chloride/Mag Sulf99 claims
Linaclotide46 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$3K
Payment records
139
By payment type
Food and Beverage$3K
Education$60