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Joyce Matsumoto, M.D.

NPI 1194868182ActiveIndividual· Psychiatry & Neurology, Neurology· Los Angeles, CA

Psychiatry & Neurology, Neurology (M.D.) in Los Angeles, California, trained at Loma Linda University School of Medicine (class of 2002). Part D covered 173 prescriptions written in 2024, 77% of them generic. Ucb, Inc. was the largest of 6 companies reporting payments in 2025, $1,410 in all, mostly food and beverage.

Overview

NPI1194868182
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedFeb 15, 2007
Last updated in NPPESSep 10, 2012

Specialties and licenses

TaxonomyCodeLicenseState
Psychiatry & Neurology, Neurology Primary2084N0400XA87710CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

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

Part D prescriptions in 2024

Prescriptions (claims)173 · 265 30-day fills
Patients12
Total drug cost$92,095
Generic share77% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLoma Linda University School of Medicine
Graduation year2002
Medicare specialtyPediatric Medicine

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,410 · 25 payments from 6 companies
  • 2024$4,171 · 24 payments from 10 companies

Top paying companies in 2025

CompanyAmountPayments
Ucb, Inc.$669.9711
Jazz Pharmaceuticals Inc.$319.764
Neuropace, Inc.$226.004
Neurelis, Inc.$98.184
Biocodex, Inc.$67.911

What the 2025 payments were for

  • Food and Beverage$1,410 · 25 payments

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

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