What is Jennifer Chang's specialty?

Jennifer Chang (NPI 1083829485) is a Medicare-billing provider whose primary specialty is Emergency Medicine in Oakland, CA.

Where does Jennifer Chang practice?

Jennifer Chang practices in Oakland, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1083829485.

How much does Medicare pay Jennifer Chang?

Jennifer Chang (NPI 1083829485) received approximately $7K in total Medicare Part B payments, serving 59 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1083829485

Jennifer ChangDO

PRACTICETHE PERMANENTE MEDICAL GROUPSee all providers at this practice →

Emergency MedicineOakland, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$6K

Peer benchmark

Total Medicare services vs. 5,287 Emergency Medicine providers in CA — bottom quintile (cohort median 355).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$147

Distinct drugs

Brand share

52.0%

Top prescribed drugs

Ondansetron13 claims

Oxycodone Hcl12 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$14

Payment records

By payment type

Food and Beverage$14

Top paying entities

Food and Beverage$14

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050075

Hospital

REFERRAL NETWORK

Where Jennifer 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). 1 inbound referrers · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
KAISER FOUNDATION HOSPITALS	17	48

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
KAISER FOUNDATION HOSPITALS	68	147
American Medical Response West Ambulance Service Provider · Concord, CA	23	32

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