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Theresa Toquyen Nguyen, DO

NPI 1679884928ActiveIndividual· Psychiatry & Neurology, Child & Adolescent Psychiatry· Tustin, CA

Psychiatry & Neurology, Child & Adolescent Psychiatry (DO) with Community Intervention Associates Inc. and 1 other group, practicing in Tustin, California. Enrolled in Medicare as practitioner - psychiatry and practitioner - psychiatry. Lists Modoc Medical Center as a hospital affiliation.

Overview

NPI1679884928
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedJul 1, 2010
Last updated in NPPESJun 28, 2023
Certified by providerJun 28, 2023

Specialties and licenses

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 - Psychiatry (AZ); Practitioner - Psychiatry (CA)

Medicare sources and data years

Education and affiliations

Graduation year2010
Medicare specialtyPsychiatry
TelehealthOffers telehealth

Medical groups

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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