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

Individual provider Clinical Psychologist · NPI 1972387066

William Mark Lassleben, PHD is a Clinical Psychologist in Encinitas, California. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
In the registry since
2023
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

1205 Saxony Rd
Encinitas, CA 92024-1819
Phone: (760) 997-9662
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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 0810001827 (VA)

Record details

NPI number1972387066
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 21, 2023
Last updated in NPPESAugust 21, 2023
Certification dateAugust 21, 2023
Mailing address1205 Saxony Rd, Encinitas, CA 92024-1819

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