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

MS. Margaret Grace Siemer, OTR/L, CLT

Individual provider Hand Occupational Therapist · NPI 1184655490

MS. Margaret Grace Siemer, OTR/L, CLT is a Hand Occupational Therapist in Lake Stevens, Washington. Licensed in California and Washington. Registered with an NPI since 2006.

Licensed in
CA, WA
In the registry since
2006
Specialties on file
2
What do these letters mean?
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

9514 4th St NE 101
Lake Stevens, WA 98258-1937
Phone: (425) 397-2327
Fax: (425) 377-0283
Show map & directions

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

Specialties & licences

Hand Occupational Therapist (primary) Taxonomy 225XH1200X · Licence OT00004496 (WA)
Hand Occupational Therapist Taxonomy 225XH1200X · Licence OT 6976 (CA)

Record details

NPI number1184655490
Entity typeIndividual (Type 1)
GenderFemale
Credentials OTR/L , CLT
Sole proprietorNo
NPI enumeratedJuly 5, 2006
Last updated in NPPESApril 21, 2015