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

Individual provider Clinical Psychologist · NPI 1740303163

Dr. John Willard Howell, PSYD is a Clinical Psychologist in San Marcos, California. Licensed in California and Washington. Registered with an NPI since 2007.

Licensed in
CA, WA
In the registry since
2007
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

333 S Twin Oaks Valley Rd
San Marcos, CA 92096-4411
Phone: (425) 281-4032
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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 25920 (CA)
Clinical Psychologist Taxonomy 103TC0700X · Licence PY00003532 (WA)

Record details

NPI number1740303163
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorNo
NPI enumeratedApril 9, 2007
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025
Mailing address1270 Cleveland Ave Unit F349, San Diego, CA 92103-3386

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