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

Mrs. Mary Kathleen Holtzman, LSW

Individual provider Social Worker · NPI 1053537076

Mrs. Mary Kathleen Holtzman, LSW is a Social Worker in Ottawa, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
What do these letters mean?
LSW — Licensed Social Worker
A state-licensed social worker.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1013 Adams St
Ottawa, IL 61350-4304
Phone: (815) 434-0857
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

Social Worker (primary) Taxonomy 104100000X (IL)

Record details

NPI number1053537076
Entity typeIndividual (Type 1)
GenderFemale
Credentials LSW
Sole proprietorNo
NPI enumeratedApril 18, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Ottawa