NPI Lens

Diana Julia Chang, MD

NPI 1578143491ActiveIndividual· Otolaryngology· Poway, CA

Otolaryngology (MD) in Poway, California, trained at Stanford University School of Medicine (class of 2021). Part D covered 212 prescriptions written in 2024, 96% of them generic. Medline Industries LP was the largest of 2 companies reporting payments in 2025, $182.43 in all, mostly food and beverage.

Overview

NPI1578143491
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 13, 2021
Last updated in NPPESJul 29, 2026
Certified by providerJul 29, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Otolaryngology Primary207Y00000XA199082CA

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 - Otolaryngology (CA)

Part D prescriptions in 2024

Prescriptions (claims)212 · 224 30-day fills
Patients99
Total drug cost$5,759
Generic share96% of claims

Medicare sources and data years

Education and affiliations

Medical schoolStanford University School of Medicine
Graduation year2021
Medicare specialtyOtolaryngology

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$182.43 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Medline Industries LP$142.661
Stryker Corporation$39.771

What the 2025 payments were for

  • Food and Beverage$182.43 · 2 payments

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

Other otolaryngologists in Poway

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