Derna M. Demaggio, M.D. PC.
Plan context: COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN
EIN 04-3525225 • Brookline, MA • 26 filings • 3 plans
Current Snapshot
Latest Year
2024
2024 Participants
22
2024 Assets
$3,405,440
2024 Contributions
$318,548
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 1 | 22 | $3,405,440 | $318,548 | $14,479iApproximate average salary by contribution assumption: employee only about $361,986 at 4% or $241,324 at 6%; with 50% employer match about $241,324 at 4% or $160,883 at 6%; with 100% employer match about $180,993 at 4% or $120,662 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 22 | $3,405,440 | $318,548 | $14,479iApproximate average salary by contribution assumption: employee only about $361,986 at 4% or $241,324 at 6%; with 50% employer match about $241,324 at 4% or $160,883 at 6%; with 100% employer match about $180,993 at 4% or $120,662 at 6%. |
| 2023 | 1 | 20 | $2,657,951 | $272,870 | $13,644iApproximate average salary by contribution assumption: employee only about $341,088 at 4% or $227,392 at 6%; with 50% employer match about $227,392 at 4% or $151,594 at 6%; with 100% employer match about $170,544 at 4% or $113,696 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 20 | $2,657,951 | $272,870 | $13,644iApproximate average salary by contribution assumption: employee only about $341,088 at 4% or $227,392 at 6%; with 50% employer match about $227,392 at 4% or $151,594 at 6%; with 100% employer match about $170,544 at 4% or $113,696 at 6%. |
| 2022 | 1 | 18 | $1,975,634 | $246,133 | $13,674iApproximate average salary by contribution assumption: employee only about $341,851 at 4% or $227,901 at 6%; with 50% employer match about $227,901 at 4% or $151,934 at 6%; with 100% employer match about $170,926 at 4% or $113,950 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 18 | $1,975,634 | $246,133 | $13,674iApproximate average salary by contribution assumption: employee only about $341,851 at 4% or $227,901 at 6%; with 50% employer match about $227,901 at 4% or $151,934 at 6%; with 100% employer match about $170,926 at 4% or $113,950 at 6%. |
| 2021 | 1 | 17 | $2,210,488 | $255,962 | $15,057iApproximate average salary by contribution assumption: employee only about $376,415 at 4% or $250,943 at 6%; with 50% employer match about $250,943 at 4% or $167,295 at 6%; with 100% employer match about $188,207 at 4% or $125,472 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 17 | $2,210,488 | $255,962 | $15,057iApproximate average salary by contribution assumption: employee only about $376,415 at 4% or $250,943 at 6%; with 50% employer match about $250,943 at 4% or $167,295 at 6%; with 100% employer match about $188,207 at 4% or $125,472 at 6%. |
| 2020 | 1 | 16 | $1,681,430 | $230,125 | $14,383iApproximate average salary by contribution assumption: employee only about $359,570 at 4% or $239,714 at 6%; with 50% employer match about $239,714 at 4% or $159,809 at 6%; with 100% employer match about $179,785 at 4% or $119,857 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 16 | $1,681,430 | $230,125 | $14,383iApproximate average salary by contribution assumption: employee only about $359,570 at 4% or $239,714 at 6%; with 50% employer match about $239,714 at 4% or $159,809 at 6%; with 100% employer match about $179,785 at 4% or $119,857 at 6%. |
| 2019 | 1 | 14 | $1,201,294 | $213,984 | $15,285iApproximate average salary by contribution assumption: employee only about $382,114 at 4% or $254,743 at 6%; with 50% employer match about $254,743 at 4% or $169,829 at 6%; with 100% employer match about $191,057 at 4% or $127,371 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 14 | $1,201,294 | $213,984 | $15,285iApproximate average salary by contribution assumption: employee only about $382,114 at 4% or $254,743 at 6%; with 50% employer match about $254,743 at 4% or $169,829 at 6%; with 100% employer match about $191,057 at 4% or $127,371 at 6%. |
| 2018 | 1 | 13 | $810,471 | $221,003 | $17,000iApproximate average salary by contribution assumption: employee only about $425,006 at 4% or $283,337 at 6%; with 50% employer match about $283,337 at 4% or $188,891 at 6%; with 100% employer match about $212,503 at 4% or $141,669 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 13 | $810,471 | $221,003 | $17,000iApproximate average salary by contribution assumption: employee only about $425,006 at 4% or $283,337 at 6%; with 50% employer match about $283,337 at 4% or $188,891 at 6%; with 100% employer match about $212,503 at 4% or $141,669 at 6%. |
| 2017 | 1 | 11 | $631,275 | $194,334 | $17,667iApproximate average salary by contribution assumption: employee only about $441,668 at 4% or $294,445 at 6%; with 50% employer match about $294,445 at 4% or $196,297 at 6%; with 100% employer match about $220,834 at 4% or $147,223 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 11 | $631,275 | $194,334 | $17,667iApproximate average salary by contribution assumption: employee only about $441,668 at 4% or $294,445 at 6%; with 50% employer match about $294,445 at 4% or $196,297 at 6%; with 100% employer match about $220,834 at 4% or $147,223 at 6%. |
| 2016 | 1 | 11 | $775,207 | $45,493 | $4,136iApproximate average salary by contribution assumption: employee only about $103,393 at 4% or $68,929 at 6%; with 50% employer match about $68,929 at 4% or $45,953 at 6%; with 100% employer match about $51,697 at 4% or $34,464 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 11 | $775,207 | $45,493 | $4,136iApproximate average salary by contribution assumption: employee only about $103,393 at 4% or $68,929 at 6%; with 50% employer match about $68,929 at 4% or $45,953 at 6%; with 100% employer match about $51,697 at 4% or $34,464 at 6%. |
| 2015 | 1 | 13 | $695,178 | $86,983 | $6,691iApproximate average salary by contribution assumption: employee only about $167,275 at 4% or $111,517 at 6%; with 50% employer match about $111,517 at 4% or $74,344 at 6%; with 100% employer match about $83,638 at 4% or $55,758 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 13 | $695,178 | $86,983 | $6,691iApproximate average salary by contribution assumption: employee only about $167,275 at 4% or $111,517 at 6%; with 50% employer match about $111,517 at 4% or $74,344 at 6%; with 100% employer match about $83,638 at 4% or $55,758 at 6%. |
| 2014 | 1 | 13 | $655,635 | $82,900 | $6,377iApproximate average salary by contribution assumption: employee only about $159,423 at 4% or $106,282 at 6%; with 50% employer match about $106,282 at 4% or $70,855 at 6%; with 100% employer match about $79,712 at 4% or $53,141 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 13 | $655,635 | $82,900 | $6,377iApproximate average salary by contribution assumption: employee only about $159,423 at 4% or $106,282 at 6%; with 50% employer match about $106,282 at 4% or $70,855 at 6%; with 100% employer match about $79,712 at 4% or $53,141 at 6%. |
| 2013 | 1 | 12 | $543,807 | $75,000 | $6,250iApproximate average salary by contribution assumption: employee only about $156,250 at 4% or $104,167 at 6%; with 50% employer match about $104,167 at 4% or $69,444 at 6%; with 100% employer match about $78,125 at 4% or $52,083 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 12 | $543,807 | $75,000 | $6,250iApproximate average salary by contribution assumption: employee only about $156,250 at 4% or $104,167 at 6%; with 50% employer match about $104,167 at 4% or $69,444 at 6%; with 100% employer match about $78,125 at 4% or $52,083 at 6%. |
| 2012 | 1 | 9 | $414,429 | $51,204 | $5,689iApproximate average salary by contribution assumption: employee only about $142,233 at 4% or $94,822 at 6%; with 50% employer match about $94,822 at 4% or $63,215 at 6%; with 100% employer match about $71,117 at 4% or $47,411 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 9 | $414,429 | $51,204 | $5,689iApproximate average salary by contribution assumption: employee only about $142,233 at 4% or $94,822 at 6%; with 50% employer match about $94,822 at 4% or $63,215 at 6%; with 100% employer match about $71,117 at 4% or $47,411 at 6%. |
| 2011 | 1 | 8 | $397,527 | $58,278 | $7,285iApproximate average salary by contribution assumption: employee only about $182,119 at 4% or $121,413 at 6%; with 50% employer match about $121,413 at 4% or $80,942 at 6%; with 100% employer match about $91,059 at 4% or $60,706 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 8 | $397,527 | $58,278 | $7,285iApproximate average salary by contribution assumption: employee only about $182,119 at 4% or $121,413 at 6%; with 50% employer match about $121,413 at 4% or $80,942 at 6%; with 100% employer match about $91,059 at 4% or $60,706 at 6%. |
| 2010 | 1 | 8 | $358,406 | $62,516 | $7,815iApproximate average salary by contribution assumption: employee only about $195,363 at 4% or $130,242 at 6%; with 50% employer match about $130,242 at 4% or $86,828 at 6%; with 100% employer match about $97,681 at 4% or $65,121 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 8 | $358,406 | $62,516 | $7,815iApproximate average salary by contribution assumption: employee only about $195,363 at 4% or $130,242 at 6%; with 50% employer match about $130,242 at 4% or $86,828 at 6%; with 100% employer match about $97,681 at 4% or $65,121 at 6%. |
| 2009 | 1 | 7 | $264,466 | $52,331 | $7,476iApproximate average salary by contribution assumption: employee only about $186,896 at 4% or $124,598 at 6%; with 50% employer match about $124,598 at 4% or $83,065 at 6%; with 100% employer match about $93,448 at 4% or $62,299 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 7 | $264,466 | $52,331 | $7,476iApproximate average salary by contribution assumption: employee only about $186,896 at 4% or $124,598 at 6%; with 50% employer match about $124,598 at 4% or $83,065 at 6%; with 100% employer match about $93,448 at 4% or $62,299 at 6%. |
| 2008 | 1 | 4 | $233,537 | $33,568 | $8,392iApproximate average salary by contribution assumption: employee only about $209,800 at 4% or $139,867 at 6%; with 50% employer match about $139,867 at 4% or $93,244 at 6%; with 100% employer match about $104,900 at 4% or $69,933 at 6%. |
| COMMONWEALTH OB-GYN, P.C. PROFIT SHARING PLAN | - | 4 | $233,537 | $33,568 | $8,392iApproximate average salary by contribution assumption: employee only about $209,800 at 4% or $139,867 at 6%; with 50% employer match about $139,867 at 4% or $93,244 at 6%; with 100% employer match about $104,900 at 4% or $69,933 at 6%. |
| 2007 | 1 | 4 | $0 | $0 | - |
| DERNA M. DEMAGGIO, M.D., P.C. PROFIT SHARING PLAN | - | 4 | - | - | - |
| 2006 | 1 | 6 | $224,237 | $18,150 | $3,025iApproximate average salary by contribution assumption: employee only about $75,625 at 4% or $50,417 at 6%; with 50% employer match about $50,417 at 4% or $33,611 at 6%; with 100% employer match about $37,813 at 4% or $25,208 at 6%. |
| DERNA M. DEMAGGIO, M.D., P.C. PROFIT SHARING PLAN | - | 6 | $224,237 | $18,150 | $3,025iApproximate average salary by contribution assumption: employee only about $75,625 at 4% or $50,417 at 6%; with 50% employer match about $50,417 at 4% or $33,611 at 6%; with 100% employer match about $37,813 at 4% or $25,208 at 6%. |
| 2005 | 1 | 4 | $196,051 | $11,125 | $2,781iApproximate average salary by contribution assumption: employee only about $69,531 at 4% or $46,354 at 6%; with 50% employer match about $46,354 at 4% or $30,903 at 6%; with 100% employer match about $34,766 at 4% or $23,177 at 6%. |
| DERNA M. DEMAGGIO, M.D., P.C. PROFIT SHARING PLAN | - | 4 | $196,051 | $11,125 | $2,781iApproximate average salary by contribution assumption: employee only about $69,531 at 4% or $46,354 at 6%; with 50% employer match about $46,354 at 4% or $30,903 at 6%; with 100% employer match about $34,766 at 4% or $23,177 at 6%. |
| 2003 | 2 | 4 | $148,959 | $62,071 | $15,518iApproximate average salary by contribution assumption: employee only about $387,944 at 4% or $258,629 at 6%; with 50% employer match about $258,629 at 4% or $172,419 at 6%; with 100% employer match about $193,972 at 4% or $129,315 at 6%. |
| DERNA M. DEMAGGIO, M.D., P.C. PROFIT SHARING PLAN | - | 4 | $148,959 | $62,071 | $15,518iApproximate average salary by contribution assumption: employee only about $387,944 at 4% or $258,629 at 6%; with 50% employer match about $258,629 at 4% or $172,419 at 6%; with 100% employer match about $193,972 at 4% or $129,315 at 6%. |
| Derna M. Demaggio, M.D. PC. Pension Plan | - | 0 | - | - | - |
| 2002 | 2 | 5 | $0 | $0 | - |
| Derna M. Demaggio, M.D. PC. Pension Plan | - | 5 | - | - | - |
| DERNA M. DEMAGGIO, M.D., P.C. PROFIT SHARING PLAN | - | 5 | - | - | - |
| 2001 | 2 | 4 | $0 | $0 | - |
| DERNA M. DEMAGGIO, M.D., P.C. PROFIT SHARING PLAN | - | 4 | - | - | - |
| Derna M. Demaggio, M.D. PC. Pension Plan | - | 4 | - | - | - |