Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Maria E O'Brien, OTD, OTR/L

Individual provider Occupational Therapist · NPI 1114809878

Dr. Maria E O'Brien, OTD, OTR/L is an Occupational Therapist in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2025.

Licensed in
IL
In the registry since
2025
What do these letters mean?
OTD — Doctor of Occupational Therapy
The doctoral degree in occupational therapy.
OTR/L — Occupational Therapist, Registered and Licensed
An occupational therapist who is both nationally registered and state licensed.

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Practice location Address checks out

3319 N Elston Ave
Chicago, IL 60618-5811
Phone: (312) 733-0883
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X · Licence 056.016652 (IL)

Record details

NPI number1114809878
Entity typeIndividual (Type 1)
GenderFemale
Credentials OTD , OTR/L
Sole proprietorNo
NPI enumeratedJuly 23, 2025
Last updated in NPPESAugust 1, 2025
Certification dateAugust 1, 2025

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