NPI Lens

Sandar Chen, MD

NPI 1255747069ActiveIndividual· Internal Medicine· El Monte, CA

Internal Medicine (MD) in El Monte, California, licensed in CA, with an NPI issued in July 2014. Part D covered 3,486 prescriptions written in 2024, 76% of them generic. Glaxosmithkline, LLC. reported $21.20 in payments in 2025, mostly food and beverage.

Overview

NPI1255747069
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedJul 1, 2014
Last updated in NPPESMar 17, 2018

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA145303CA
Student in an Organized Health Care Education/Training Program390200000X——

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 Order and Referring Only - Internal Medicine (CA)

Part D prescriptions in 2024

Prescriptions (claims)3,486 · 6,389 30-day fills
Patients99
Total drug cost$188,286
Generic share76% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$21.20 · 1 payment from 1 company
  • 2024$238.77 · 14 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Glaxosmithkline, LLC.$21.201

What the 2025 payments were for

  • Food and Beverage$21.20 · 1 payment

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

Other Internal Medicine providers in El Monte

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