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

Mary Manchester Simkin-Maass, MS, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1083120927

Mary Manchester Simkin-Maass, MS, CCC-SLP is a Speech-Language Pathologist in Seattle, Washington. Registered with an NPI since 2017.

In the registry since
2017
What do these letters mean?
MS — Master of Science
A graduate science degree.
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1981 NE Columbia Rd
Seattle, WA 98195-0001
Phone: (206) 543-4011
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 · Licence LL60810349

Record details

NPI number1083120927
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , CCC-SLP
Sole proprietorNo
NPI enumeratedDecember 14, 2017
Last updated in NPPESDecember 14, 2017

Other providers in Seattle