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

Addison Johnson, LISW

Individual provider Clinical Social Worker · NPI 1437019049

Addison Johnson, LISW is a Clinical Social Worker in Mason City, Iowa. Qualified in 2022, 4 years ago. Accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
4
Licensed in
IA
In the registry since
2025
What do these letters mean?
LISW — Licensed Independent Social Worker
A social worker licensed to practise independently.

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Practice location Address checks out

520 S Pierce Ave Ste 213
Mason City, IA 50401-2751
Phone: (501) 690-9854
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 113626 (IA)

Record details

NPI number1437019049
Entity typeIndividual (Type 1)
GenderFemale
Credentials LISW
Sole proprietorNo
NPI enumeratedNovember 15, 2025
Last updated in NPPESNovember 15, 2025
Certification dateNovember 15, 2025
Mailing address520 S Pierce Ave Ste 213, Mason City, IA 50401-2751

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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