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

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