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

John Haak

Individual provider Speech-Language Pathologist · NPI 1992157614

John Haak is a Speech-Language Pathologist in Sioux Falls, South Dakota. Licensed in South Dakota. Registered with an NPI since 2016.

Licensed in
SD
In the registry since
2016

Practice location Address checks out

201 E 38th St Att: Barb Avery-Sterud
Sioux Falls, SD 57105-5815
Phone: (605) 367-7900
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X (SD)

Record details

NPI number1992157614
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 6, 2016
Last updated in NPPESJuly 6, 2016

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