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Lam Duy Nguyen

NPI 1558995860ActiveIndividual· Registered Nurse, Psych/Mental Health· Cerritos, CA

Registered Nurse, Psych/Mental Health with Jason Kellogg MD Inc, practicing in Cerritos, California. Their prescriptions cost Medicare Part D more than their services did: $68,708 for 776 claims, against $6,915 paid for services in 2024. Acadia Pharmaceuticals Inc reported $45.79 in payments in 2025, mostly food and beverage.

Overview

NPI1558995860
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedFeb 25, 2020
Last updated in NPPESFeb 25, 2020
Certified by providerFeb 25, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Registered Nurse, Psych/Mental Health Primary163WP0808X820798CA

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 - Nurse Practitioner (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients32
Services billed122 across 3 procedure codes
Paid by Medicare$6,915

Part D prescriptions in 2024

Prescriptions (claims)776 · 778 30-day fills
Patients91
Total drug cost$68,708
Generic share95% of claims

Medicare sources and data years

Education and affiliations

Graduation year2012
Medicare specialtyNurse Practitioner
TelehealthOffers telehealth

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$45.79 · 2 payments from 1 company
  • 2024$522.17 · 8 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Acadia Pharmaceuticals Inc$45.792

What the 2025 payments were for

  • Food and Beverage$45.79 · 2 payments

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

Other Registered Nurse, Psych/Mental Health providers in Cerritos

All 17 Registered Nurse, Psych/Mental Health providers in Cerritos · All Registered Nurse, Psych/Mental Health providers in California