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

Mary Margaret Thomas, RN, MSN

Individual provider Case Management Registered Nurse · NPI 1639722697

Mary Margaret Thomas, RN, MSN is a Case Management Registered Nurse in Seattle, Washington. Licensed in California, Michigan, Montana and Washington. Registered with an NPI since 2019.

Licensed in
CA, MI, MT, WA
In the registry since
2019
Specialties on file
4
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

See every abbreviation used in this directory →

Practice location Address checks out

701 5th Ave Ste 2300
Seattle, WA 98104-7041
Phone: (206) 258-6039
Fax: (206) 701-9452
Show map & directions

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

Specialties & licences

Case Management Registered Nurse (primary) Taxonomy 163WC0400X · Licence 60158960 (WA)
Case Management Registered Nurse Taxonomy 163WC0400X · Licence 95112858 (CA)
Case Management Registered Nurse Taxonomy 163WC0400X · Licence 4704340686 (MI)
Case Management Registered Nurse Taxonomy 163WC0400X · Licence 132128 (MT)

Record details

NPI number1639722697
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MSN
Sole proprietorNo
NPI enumeratedJuly 18, 2019
Last updated in NPPESJuly 18, 2019

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