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

Mary Sue Siemsen, MS

Individual provider Speech-Language Pathologist · NPI 1215289285

Mary Sue Siemsen, MS is a Speech-Language Pathologist in Newport, Washington. Licensed in Washington. Registered with an NPI since 2012.

Licensed in
WA
In the registry since
2012
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

1201 W 5th St
Newport, WA 99156
Phone: (509) 671-2817
Show map & directions

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

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence LL 00004630 (WA)

Record details

NPI number1215289285
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS
Sole proprietorNo
NPI enumeratedOctober 15, 2012
Last updated in NPPESOctober 15, 2012

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