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

Dr. William Joseph Biffar, PHD

Individual provider Clinical Psychologist · NPI 1104853449

Dr. William Joseph Biffar, PHD is a Clinical Psychologist in Escondido, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

225 E 3rd Ave
Escondido, CA 92025-4203
Phone: (760) 741-1176
Fax: (760) 740-9124
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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-7952 (CA)

Record details

NPI number1104853449
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJune 26, 2006
Last updated in NPPESJuly 8, 2007
Mailing address225 E 3rd Ave, Escondido, CA 92025-4203

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