Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Dorothy Nguyen, PSYD

Individual provider Clinical Psychologist · NPI 1639312614

Dr. Dorothy Nguyen, PSYD is a Clinical Psychologist in Northridge, California. Practices as a sole proprietor. Licensed in California and Colorado.

Licensed in
CA, CO
In the registry since
2009
Specialties on file
2
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

9650 Zelzah Ave
Northridge, CA 91325-2003 Not confirmed with CMS for 12 years — call before visiting
Phone: (818) 993-9311
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 103TC0700X (CO)
Clinical Psychologist Taxonomy 103TC0700X · Licence 26625 (CA)

Record details

NPI number1639312614
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedApril 7, 2009
Last updated in NPPESSeptember 22, 2014

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients12
Services billed 27 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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