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

Individual provider Clinical Psychologist · NPI 1740597780

Dr. Grant Seo, PSYD is a Clinical Psychologist in Norwalk, California. Qualified in 2011, 15 years ago. Practices with Department of State Hospitals, a 276-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Licensed in
CA
In the registry since
2010
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

11401 Bloomfield Ave
Norwalk, CA 90650-2015
Phone: (562) 863-7011
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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 PSY26120 (CA)

Record details

NPI number1740597780
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedSeptember 13, 2010
Last updated in NPPESSeptember 18, 2022
Certification dateSeptember 18, 2022
Mailing address11401 Bloomfield Ave, Norwalk, CA 90650-2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Department Of State Hospitals — 276 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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