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

MS. Denise Ellyn Maas, MOTR/L

Individual provider Occupational Therapist · NPI 1164864344

MS. Denise Ellyn Maas, MOTR/L is an Occupational Therapist in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois and Indiana.

Licensed in
IL, IN
In the registry since
2013
Specialties on file
2

Practice location Address checks out

9559 S Charles St
Chicago, IL 60643-1203
Phone: (773) 519-0045
Show map & directions

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

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X · Licence 056-005610 (IL)
Occupational Therapist Taxonomy 225X00000X · Licence 31003102A (IN)

Record details

NPI number1164864344
Entity typeIndividual (Type 1)
GenderFemale
Credentials MOTR/L
Sole proprietorYes
NPI enumeratedJuly 29, 2013
Last updated in NPPESJuly 29, 2013

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