What is William Chang's specialty?

William Chang (NPI 1023326121) is a Medicare-billing provider whose primary specialty is Physician Assistant in Pontiac, IL.

Where does William Chang practice?

William Chang practices in Pontiac, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1023326121.

How much does Medicare pay William Chang?

William Chang (NPI 1023326121) received approximately $8K in total Medicare Part B payments, serving 72 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1023326121

William Chang

PRACTICESAINT JAMES HOSPITALSee all providers at this practice →

Physician AssistantPontiac, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 3,282 Physician Assistant providers in IL — below median (cohort median 232).

PRESCRIBING · PART D · 2024

Total Rx claims

106

Beneficiaries

—

Total drug cost

$721

Distinct drugs

Brand share

50.9%

Top prescribed drugs

Oxycodone Hcl/Acetaminophen54 claims

Oxycodone Hcl41 claims

Meloxicam11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 500129

Hospital

REFERRAL NETWORK

Where William 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). 2 inbound referrers · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MULTICARE HEALTH SYSTEM	46	125
David Coons Emergency Medicine · Tacoma, WA	14	26

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MULTICARE HEALTH SYSTEM	44	100
Hossein Pakzad Sedigh Orthopedic Surgery · Tacoma, WA	37	136
David Coons Emergency Medicine · Tacoma, WA	15	43

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