What is Tommy Chen's specialty?

Tommy Chen (NPI 1326136854) is a Medicare-billing provider whose primary specialty is Dermatology in Pasadena, CA.

Where does Tommy Chen practice?

Tommy Chen practices in Pasadena, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1326136854.

How much does Medicare pay Tommy Chen?

Tommy Chen (NPI 1326136854) received approximately $81K in total Medicare Part B payments, serving 154 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1326136854

Tommy ChenM.D.

DermatologyPasadena, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

324

Unique beneficiaries

—

Total services

491

Distinct HCPCS

Medicare payment

$39K

Peer benchmark

Total Medicare services vs. 1,546 Dermatology providers in CA — below median (cohort median 2,504).

PRESCRIBING · PART D · 2024

Total Rx claims

314

Beneficiaries

—

Total drug cost

$160K

Distinct drugs

Brand share

8.6%

Top prescribed drugs

Ketoconazole81 claims

Mometasone Furoate70 claims

Hydrocortisone47 claims

Clobetasol Propionate33 claims

Doxycycline Hyclate26 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$88

Payment records

By payment type

Food and Beverage$88

Top paying entities

Food and Beverage$88

REFERRAL NETWORK

Where Tommy 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 · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	46	149
PIH HEALTH WHITTIER HOSPITAL	26	43
Gene Kim Dermatology · Los Angeles, CA	21	39

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MICROTECHNICAL LABORATORY	94	182
Unilab Corporation Clinical Laboratory · West Hills, CA	45	145
Brittney De Clerck Dermatology · Los Angeles, CA	24	41
PIH HEALTH WHITTIER HOSPITAL	22	59
UNIVERSITY OF SOUTHERN CALIFORNIA	13	29

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