What is Alan Chang's specialty?

Alan Chang (NPI 1912992330) is a Medicare-billing provider whose primary specialty is Gastroenterology in Doylestown, PA.

Where does Alan Chang practice?

Alan Chang practices in Doylestown, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1912992330.

How much does Medicare pay Alan Chang?

Alan Chang (NPI 1912992330) received approximately $257K in total Medicare Part B payments, serving 673 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1912992330

Alan ChangMD

PRACTICECENTRAL BUCKS SPECIALISTSSee all providers at this practice →

GastroenterologyDoylestown, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,159

Unique beneficiaries

—

Total services

1,256

Distinct HCPCS

Medicare payment

$119K

Peer benchmark

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

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

Top paying entities

Food and Beverage$3K

Education$60

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

Physician	Patients	Visits
DOYLESTOWN HOSPITAL	335	1,139
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	73	235
Paul Adelizzi Diagnostic Radiology · Doylestown, PA	63	149
Ronald Costanzo Diagnostic Radiology · Doylestown, PA	47	103
Joseph Kim Gastroenterology · Sherman, TX	45	161
Linda Barnhurst Diagnostic Radiology · Doylestown, PA	45	104
WILSON, DALE	44	87
Kevin Fillmore Diagnostic Radiology · Doylestown, PA	36	71
Francis Grzywacz Cardiology · Doylestown, PA	34	97
Louis Morsbach Internal Medicine · Doylestown, PA	34	87
David Sheehan Interventional Radiology · Doylestown, PA	33	86
Steven Mcdonald Anesthesiology · Doylestown, PA	31	76

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.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history