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

William J Knoflicek, PHD

Individual provider Psychologist · NPI 1629130075

William J Knoflicek, PHD is a Psychologist in Sioux Falls, South Dakota. Licensed in South Dakota. Registered with an NPI since 2006.

Licensed in
SD
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

4400 W 69th St Ste 500
Sioux Falls, SD 57108-8171
Phone: (605) 322-7580
Fax: (605) 322-7579
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 461 (SD)

Record details

NPI number1629130075
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 14, 2006
Last updated in NPPESFebruary 18, 2015
Mailing address2400 S. Minnesota Ave, Ste 100, Sioux Falls, SD 57105-3762

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