What is Roger Chang's specialty?

Roger Chang (NPI 1730158239) is a Medicare-billing provider whose primary specialty is Internal Medicine in Orange, CA.

Where does Roger Chang practice?

Roger Chang practices in Orange, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1730158239.

How much does Medicare pay Roger Chang?

Roger Chang (NPI 1730158239) received approximately $28K in total Medicare Part B payments, serving 107 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1730158239

Roger ChangM.D.

PRACTICEGEES HEALTHCARE PHCYSee all providers at this practice →

Internal MedicineOrange, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

168

Unique beneficiaries

—

Total services

254

Distinct HCPCS

Medicare payment

$26K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — below median (cohort median 531).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$56

Payment records

By payment type

Food and Beverage$56

Top paying entities

Food and Beverage$56

REFERRAL NETWORK

Where Roger 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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Peter Piampiano Diagnostic Radiology · Knoxville, TN	77	233
Hieu Truong Diagnostic Radiology · Orange, CA	45	123
Dan Vu Diagnostic Radiology · Orange, CA	39	123
Unilab Corporation Clinical Laboratory · West Hills, CA	37	149
TOWN AND COUNTRY MANOR CHRISTIAN & MISSIONARY ALLIANCE	36	92
Kirk Ohanian Diagnostic Radiology · Fort Worth, TX	36	145
Mark Masotto Diagnostic Radiology · Orange, CA	30	82
Johnson Chiu Internal Medicine · Orange, CA	30	107
Edvin Dilanchiyan Hospitalist · Orange, CA	29	77
Richard Cho Interventional Radiology · Orange, CA	24	72
Kenneth Meng Diagnostic Radiology · Orange, CA	23	79
Eui Cha Internal Medicine · Orange, CA	21	74

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events