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

MS. Mary Katherine Brennan, MS, CCC-L

Individual provider Speech-Language Pathologist · NPI 1164561718

MS. Mary Katherine Brennan, MS, CCC-L is a Speech-Language Pathologist in Sycamore, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

245 W Exchange St Ste #4
Sycamore, IL 60178-1495
Phone: (815) 895-9227
Fax: (815) 895-2971
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

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

Record details

NPI number1164561718
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , CCC-L
Sole proprietorYes
NPI enumeratedFebruary 6, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Sycamore