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

Theodore Issen

Individual provider Behavior Analyst · NPI 1477037281

Theodore Issen is a Behavior Analyst in Chicago, Illinois. Registered with an NPI since 2018.

In the registry since
2018

Practice location Address checks out

520 N Marshfield Ave
Chicago, IL 60622-6731
Phone: (312) 243-6097
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X

Record details

NPI number1477037281
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedSeptember 18, 2018
Last updated in NPPESSeptember 18, 2018
Mailing address520 N Marshfield Ave, Chicago, IL 60622-6731

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