What is Walter Chang's specialty?

Walter Chang (NPI 1497851919) is a Medicare-billing provider whose primary specialty is Anesthesiology in Duarte, CA.

Where does Walter Chang practice?

Walter Chang practices in Duarte, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1497851919.

How much does Medicare pay Walter Chang?

Walter Chang (NPI 1497851919) received approximately $46K in total Medicare Part B payments, serving 252 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1497851919

Walter ChangMD

AnesthesiologyDuarte, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

167

Unique beneficiaries

—

Total services

167

Distinct HCPCS

Medicare payment

$21K

Peer benchmark

Total Medicare services vs. 4,547 Anesthesiology providers in CA — top quintile (cohort median 182).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

92.8

Quality

78.5

Cost

70.4

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.75%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$198

Payment records

By payment type

Food and Beverage$198

Top paying entities

Food and Beverage$198

REFERRAL NETWORK

Where Walter 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). 6 inbound referrers · 16 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Ko Yamada Cardiology · Los Angeles, CA	44	69
Jimmie Wong Diagnostic Radiology · Duarte, CA	24	38
Massimo D'apuzzo Pathology · Duarte, CA	21	33
Julie Ressler Diagnostic Radiology · Duarte, CA	14	18
Alexander Jung Diagnostic Radiology · Duarte, CA	12	17
Ellie Maghami Otolaryngology · Duarte, CA	11	63

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
CITY OF HOPE NATIONAL MEDICAL CENTER	130	421
TONG, SUN WING	28	32
Ko Yamada Cardiology · Los Angeles, CA	23	44
Huiqing Wu Pathology · Duarte, CA	23	28
James Lin Gastroenterology · Duarte, CA	21	47
Christine Chang Psychiatry & Neurology · Mendota, CA	21	54
WILCZYNSKI, SHARON	19	26
CHU, PEIGUO	18	34
William Boswell Diagnostic Radiology · Duarte, CA	16	42
NPI 1538253976	16	25
Jimmie Wong Diagnostic Radiology · Duarte, CA	15	23
Donald David Internal Medicine · Duarte, CA	14	33

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