What is Charles Chang's specialty?

Charles Chang (NPI 1942436886) is a Medicare-billing provider whose primary specialty is Urology in Concord, CA.

Where does Charles Chang practice?

Charles Chang practices in Concord, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1942436886.

How much does Medicare pay Charles Chang?

Charles Chang (NPI 1942436886) received approximately $6K in total Medicare Part B payments, serving 46 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1942436886

Charles ChangMD

UrologyConcord, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$3K

Peer benchmark

Total Medicare services vs. 942 Urology providers in CA — bottom quintile (cohort median 1,637).

PRESCRIBING · PART D · 2024

Total Rx claims

943

Beneficiaries

—

Total drug cost

$375K

Distinct drugs

Brand share

41.0%

Top prescribed drugs

Tamsulosin Hcl383 claims

Oxybutynin Chloride118 claims

Mirabegron109 claims

Alfuzosin Hcl107 claims

Finasteride81 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Charles 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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MULTICARE HEALTH SYSTEM	144	687
ARNTSON, ERIC	28	88
Peter Minich Urology · Quincy, IL	19	63
Scott Walker Diagnostic Radiology · Tacoma, WA	16	49
RICHARDSON, LONDE	16	36
Mohammed Baccora Nephrology · Puyallup, WA	15	100
Evan Leitz Diagnostic Radiology · Greenville, NC	14	35
REINBOLD, ALISON	13	38
MULTICARE HEALTH SYSTEM	12	39
JACOBSON, CHARLES	12	51

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