What is Thomas Chen's specialty?

Thomas Chen (NPI 1225071509) is a Medicare-billing provider whose primary specialty is Neurosurgery in Los Angeles, CA.

Where does Thomas Chen practice?

Thomas Chen practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1225071509.

How much does Medicare pay Thomas Chen?

Thomas Chen (NPI 1225071509) received approximately $71K in total Medicare Part B payments, serving 128 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1225071509

Thomas ChenM.D., PHD

NeurosurgeryLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

133

Unique beneficiaries

—

Total services

212

Distinct HCPCS

Medicare payment

$11K

Peer benchmark

Total Medicare services vs. 497 Neurosurgery providers in CA — below median (cohort median 341).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$556

Payment records

By payment type

Food and Beverage$556

Top paying entities

Food and Beverage$556

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Thomas 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 · 13 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Paul Kim Diagnostic Radiology · Los Angeles, CA	30	101
Unilab Corporation Clinical Laboratory · West Hills, CA	14	70
GONZALEZ, ANDRES	11	24

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
UNIVERSITY OF SOUTHERN CALIFORNIA	114	751
UNIVERSITY OF SOUTHERN CALIFORNIA	43	206
LIU, CHIA-SHANG	29	107
Wende Gibbs Undefined Physician type · Phoenix, AZ	23	107
Kevin King Undefined Physician type · Phoenix, AZ	22	76
AHMC GARFIELD MEDICAL CENTER LP	18	39
LAW, EU MENG	18	64
Elroy Vojdani General Practice · Los Angeles, CA	17	62
Unilab Corporation Clinical Laboratory · West Hills, CA	13	60
Ashraf Hawari Diagnostic Radiology · Marina Del Rey, CA	13	35
Paul Kim Diagnostic Radiology · Los Angeles, CA	13	57
Christopher Ornelas Interventional Pain Management · Los Angeles, CA	12	52

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