What is Yiann Chen's specialty?

Yiann Chen (NPI 1891912689) is a Medicare-billing provider whose primary specialty is Nephrology in Oakland, CA.

Where does Yiann Chen practice?

Yiann Chen practices in Oakland, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1891912689.

How much does Medicare pay Yiann Chen?

Yiann Chen (NPI 1891912689) received approximately $10K in total Medicare Part B payments, serving 42 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1891912689

Yiann ChenMD

PRACTICETHE PERMANENTE MEDICAL GROUPSee all providers at this practice →

NephrologyOakland, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 985 Nephrology providers in CA — bottom quintile (cohort median 1,482).

PRESCRIBING · PART D · 2024

Total Rx claims

387

Beneficiaries

—

Total drug cost

$49K

Distinct drugs

Brand share

9.8%

Top prescribed drugs

Losartan Potassium71 claims

Amlodipine Besylate65 claims

Sevelamer Carbonate52 claims

Calcium Acetate43 claims

Furosemide28 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 Yiann Chen'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). 3 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
KAISER FOUNDATION HOSPITALS	60	160
Kenneth Chen Internal Medicine · Richmond, CA	15	51
LLANO DIALYSIS LLC	12	92

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