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

Individual provider Clinical Psychologist · NPI 1487726733

Dr. William Dee Woolston, PHD is a Clinical Psychologist in Billings, Montana. Practices as a sole proprietor. Licensed in Montana.

Licensed in
MT
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

1211 Grand Ave Ste 5
Billings, MT 59102-4213
Phone: (406) 655-4904
Fax: (406) 655-2386
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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 81 (MT)

Record details

NPI number1487726733
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedNovember 14, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1211 Grand Ave, Suite 5, Billings, MT 59102-4213

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