Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Thomas Patrick Howell, PHD

Individual provider Clinical Psychologist · NPI 1639364284

Dr. Thomas Patrick Howell, PHD is a Clinical Psychologist in Tustin, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1254 Irvine Blvd Ste 240
Tustin, CA 92780-3509
Phone: (714) 544-1622
Fax: (714) 544-9766
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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 PSY-10340 (CA)

Record details

NPI number1639364284
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 6, 2007
Last updated in NPPESSeptember 6, 2007

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