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

Hannah K Thiessen, LMSW

Individual provider Social Worker · NPI 1801576855

Hannah K Thiessen, LMSW is a Social Worker in Rockville, Maryland. Licensed in Maryland. Registered with an NPI since 2023.

Licensed in
MD
In the registry since
2023
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

See every abbreviation used in this directory →

Practice location Address checks out

15701 Crabbs Branch Way
Rockville, MD 20855-2634
Phone: (301) 251-8965
Fax: (301) 251-0136
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 30198 (MD)

Record details

NPI number1801576855
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedJuly 24, 2023
Last updated in NPPESJuly 31, 2023
Certification dateJuly 31, 2023

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