NPI Lens

Olivia Mai-Lan Nguyen, DDS

NPI 1821659046ActiveIndividual· Dentist· San Ramon, CA

Dentist (DDS) in San Ramon, California, licensed in MA and CA, with an NPI issued in June 2019. Part D covered 27 prescriptions written in 2024, 85% of them generic. Align Technology, Inc. was the largest of 2 companies reporting payments in 2025, $99.07 in all, mostly food and beverage.

Overview

NPI1821659046
StatusActive
Entity typeIndividual
CredentialDDS
Sole proprietorNo
NPI issuedJun 27, 2019
Last updated in NPPESFeb 10, 2025
Certified by providerFeb 10, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Dentist Primary122300000XDN185842MA
Dentist, Prosthodontics1223P0700XCA107482CA
Student in an Organized Health Care Education/Training Program390200000X——

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)Not in the public enrollment file of Oct 1, 2026

Part D prescriptions in 2024

Prescriptions (claims)27 · 27 30-day fills
Patients14
Total drug cost$288.96
Generic share85% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$99.07 · 2 payments from 2 companies
  • 2024$29.36 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Align Technology, Inc.$59.071
Hu-Friedy Mfg. Co., LLC$40.001

What the 2025 payments were for

  • Food and Beverage$59.07 · 1 payment
  • Education$40.00 · 1 payment

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

Other dentists in San Ramon

All 65 dentists in San Ramon · All dentists in California