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

Individual provider Clinical Psychologist · NPI 1619969854

William Dean Billows, PHDHSPP is a Clinical Psychologist in Mount Prospect, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2005
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Practice location Address checks out

800 E Northwest Hwy Ste 106
Mount Prospect, IL 60056-3457
Phone: (847) 909-9858
Fax: (847) 299-4952
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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 071.006777 (IL)

Record details

NPI number1619969854
Entity typeIndividual (Type 1)
GenderMale
Credentials PHDHSPP
Sole proprietorYes
NPI enumeratedAugust 15, 2005
Last updated in NPPESJuly 21, 2022

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