Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Leah Elizabeth Clark, EDS, BCBA

Individual provider Behavior Analyst · NPI 1578981403

Mrs. Leah Elizabeth Clark, EDS, BCBA is a Behavior Analyst in Sioux City, Iowa. Practices as a sole proprietor. Licensed in Iowa and Nebraska.

Licensed in
IA, NE
In the registry since
2014
Specialties on file
2
What do these letters mean?
BCBA — Board Certified Behavior Analyst
Designs and supervises applied behaviour analysis programmes, often for autism.

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Practice location Address checks out

1019 Jones St
Sioux City, IA 51105-1751
Phone: (712) 746-7447
Fax: (712) 525-0036
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X · Licence 105829 (IA)
School Psychologist Taxonomy 103TS0200X · Licence 2018003232 (NE)

Record details

NPI number1578981403
Entity typeIndividual (Type 1)
GenderFemale
Credentials EDS , BCBA
Sole proprietorYes
NPI enumeratedMarch 28, 2014
Last updated in NPPESFebruary 27, 2026
Certification dateFebruary 27, 2026

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