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

Sierra Johnson, LMSW

Individual provider Clinical Social Worker · NPI 1134822661

Sierra Johnson, LMSW is a Clinical Social Worker in Muskegon, Michigan. Qualified in 2022, 4 years ago. Practices as a sole proprietor. Licensed in Michigan.

Years since qualifying
4
Licensed in
MI
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3247 Lakeshore Dr
Muskegon, MI 49441-1110
Phone: (231) 903-8298
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 6081120187 (MI)

Record details

NPI number1134822661
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorYes
NPI enumeratedMarch 23, 2023
Last updated in NPPESDecember 3, 2025
Certification dateDecember 3, 2025

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 Not indicated

Other providers in Muskegon