What is Thomas Chen's specialty?

Thomas Chen (NPI 1891870317) is a Medicare-billing provider whose primary specialty is Medical Oncology in San Jose, CA.

Where does Thomas Chen practice?

Thomas Chen practices in San Jose, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1891870317.

How much does Medicare pay Thomas Chen?

Thomas Chen (NPI 1891870317) received approximately $229K in total Medicare Part B payments, serving 620 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1891870317

Thomas ChenMD

Medical OncologySan Jose, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,379

Unique beneficiaries

—

Total services

3,182

Distinct HCPCS

Medicare payment

$227K

Peer benchmark

Total Medicare services vs. 268 Medical Oncology providers in CA — above median (cohort median 1,130).

PRESCRIBING · PART D · 2024

Total Rx claims

596

Beneficiaries

—

Total drug cost

$870K

Distinct drugs

Brand share

19.5%

Top prescribed drugs

Hydroxyurea77 claims

Prednisone56 claims

Dexamethasone47 claims

Apixaban47 claims

Ondansetron Hcl45 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$271

Payment records

By payment type

Food and Beverage$271

Top paying entities

Food and Beverage$271

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). 13 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
LABORATORY CORPORATION OF AMERICA	304	2,567
GOOD SAMARITAN HOSPITAL, L.P.	133	804
May Chen Medical Oncology · Campbell, CA	50	330
Judong Pan Diagnostic Radiology · San Francisco, CA	37	138
Wendy Sura Nurse Practitioner · Campbell, CA	33	145
Matthew Tran Diagnostic Radiology · San Jose, CA	31	133
NPI 1447682380	31	90
Rajeev Tandon Interventional Radiology · San Jose, CA	24	85
Cynthia Sigler Diagnostic Radiology · San Jose, CA	20	76
Vineet Sharma Diagnostic Radiology · Fremont, CA	20	61
YEN, CHI-KWAN	19	57
GRIFFIN, CHARLES	15	65

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