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

MS. Mary Swierzowski, MS, OTR/L

Individual provider Occupational Therapist · NPI 1346746740

MS. Mary Swierzowski, MS, OTR/L is an Occupational Therapist in Washington, District of Columbia. Registered with an NPI since 2018.

In the registry since
2018
What do these letters mean?
MS — Master of Science
A graduate science degree.
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

111 Michigan Ave NW
Washington, DC 20010-2916
Phone: (888) 884-2327
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X

Record details

NPI number1346746740
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , OTR/L
Sole proprietorNo
NPI enumeratedApril 4, 2018
Last updated in NPPESOctober 12, 2025
Certification dateOctober 12, 2025

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