What is Yunn-Yi Chen's specialty?

Yunn-Yi Chen (NPI 1841245966) is a Medicare-billing provider whose primary specialty is Pathology in San Francisco, CA.

Where does Yunn-Yi Chen practice?

Yunn-Yi Chen practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1841245966.

How much does Medicare pay Yunn-Yi Chen?

Yunn-Yi Chen (NPI 1841245966) received approximately $29K in total Medicare Part B payments, serving 145 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1841245966

Yunn-Yi ChenMD

PRACTICEUCSFSee all providers at this practice →

PathologySan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

352

Unique beneficiaries

—

Total services

719

Distinct HCPCS

Medicare payment

$28K

Peer benchmark

Total Medicare services vs. 1,209 Pathology providers in CA — below median (cohort median 1,423).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

84.9

Quality

81.1

Cost

71.5

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.42%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

By payment type

Consulting Fee$3K

Food and Beverage$41

Top paying entities

Consulting Fee$3K

Food and Beverage$41

REFERRAL NETWORK

Where Yunn-Yi 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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
James Grenert Pathology · San Francisco, CA	23	50
Kimberly Ray Diagnostic Radiology · Orange, CA	12	78

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