Dr. Theresa Toquyen Nguyen is a Tustin, California based psychiatrist who is specialized in Child & Adolescent. Active license number of Dr. Theresa Toquyen Nguyen is 20A12682 for Child & Adolescent in California. Her current practice location is 15405 Lansdowne Rd, Tustin. Patients can reach her at 925-997-9093. Dr. Theresa Toquyen Nguyen is DO in Child & Adolescent and her NPI number (Unique professional ID assigned by NPPES) is 1679884928.
Dr. Theresa Toquyen Nguyen has done additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Complete Profile:
Dr. Theresa Toquyen Nguyen speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Theresa Toquyen Nguyen |
| Specialization: | Child & Adolescent |
| Gender: | Female |
| Credentials: | DO |
| Practice Address: | 15405 Lansdowne Rd, Tustin,
California, 92782 |
| Phone: | 925-997-9093 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| NPI Number: | 1679884928 |
| NPI Enumeration Date: | 01 Jul, 2010 |
| NPI Last Update On: | 28 Jun, 2023 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Theresa Toquyen Nguyen are as mentioned below.
| License Number | Specialization | State | Status | |
| 20A12682 | Child & Adolescent | California | Primary | |
| 007228 | Child & Adolescent | Arizona | Secondary | |
| 20A12682 | Psychiatry | California | Secondary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Theresa Toquyen Nguyen
One Hospital Drive, Dc018.00
Columbia, Missouri |
| Zip: | 65202 |
Patients can reach Dr. Theresa Toquyen Nguyen at
15405 Lansdowne Rd, Tustin, California or can
call to book an appointment on 925-997-9093.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.