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Diana Hui-Min Hsu, M.D.

NPI 1720090137ActiveIndividual· Internal Medicine· Downey, CA

Internal Medicine (M.D.) in Downey, California, licensed in CA, with an NPI issued in August 2006. Part D covered 1,349 prescriptions written in 2024, 90% of them generic. Kyowa Kirin, Inc. reported $26.49 in payments in 2025, mostly food and beverage.

Overview

NPI1720090137
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 13, 2006
Last updated in NPPESApr 9, 2008

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA62369CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CA)

Part D prescriptions in 2024

Prescriptions (claims)1,349 · 2,991 30-day fills
Patients192
Total drug cost$63,078
Generic share90% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$26.49 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Kyowa Kirin, Inc.$26.491

What the 2025 payments were for

  • Food and Beverage$26.49 · 1 payment

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other internal medicine physicians in Downey

All 129 internal medicine physicians in Downey · All internal medicine physicians in California