OpenERISA

Advent Mso LLC

Wauwatosa, WI, 53226

EIN 85-1550761
Plans
1
Total participants
1,144
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
621111

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500501Advanced Ear, Nose & Throat Health And Welfare Benefit Plan294
2023Form 5500501Advanced Ear, Nose & Throat Specialists, S.C. Health & Welfare Benefit Plan262
2022Form 5500501Advanced Ear, Nose & Throat Specialists, S.C. Health & Welfare Benefit Plan239
2021Form 5500501Advanced Ear, Nose & Throat Specialists, S.C. Health & Welfare Benefit Plan200
2020Form 5500501Advanced Ear, Nose & Throat Specialists, S.C. Health & Welfare Benefit Plan149

Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.

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