| 2024 | Harvey D and Janet G Cohen Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | James a Nathan Family Foundation | 990PF | President | 0 | $0 | - | View return |
| 2023 | James a Nathan Family Foundation | 990PF | President | 0 | $0 | - | View return |
| 2022 | James a Nathan Family Foundation | 990PF | President | 0 | $0 | - | View return |
| 2021 | James a Nathan Family Foundation | 990PF | President | 0 | $0 | - | View return |
| 2020 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | James a Nathan Family Foundation | 990PF | President | 0 | $0 | - | View return |
| 2019 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Florida Hospital Association Research and Education Foundation | 990 | Director | 0.6 | $0 | $0 | View return |
| 2017 | Florida Hospital Association Inc | 990 | Trustee | 0.8 | $0 | $0 | View return |
| 2017 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Cedars-Sinai Medical Center | 990 | Board Member | 5 | $0 | $0 | View return |
| 2016 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Cedars-Sinai Medical Center | 990 | Board Member | 5 | $0 | $0 | View return |
| 2016 | World Affairs Councils of America | 990 | Member | 2.5 | $0 | $0 | View return |
| 2015 | Florida Hospital Association Inc | 990 | Trustee | 0.8 | $0 | $0 | View return |
| 2015 | Florida Hospital Association Research and Education Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2015 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | World Affairs Councils of America | 990 | Member | 2.5 | $0 | $0 | View return |
| 2015 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Cedars-Sinai Medical Center | 990 | Board Member | 5 | $0 | $0 | View return |
| 2015 | Leesar Inc. | 990 | President | 0 | $0 | $0 | View return |
| 2014 | Florida Hospital Association Research and Education Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2014 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Florida Hospital Association Inc | 990 | Trustee | 0.8 | $0 | $0 | View return |
| 2014 | World Affairs Councils of America | 990 | Board Member | 2.5 | $0 | $0 | View return |
| 2014 | Cedars-Sinai Medical Center | 990 | Board Member | 5 | $0 | $0 | View return |
| 2014 | Leesar Inc. | 990 | President | 0 | $0 | $0 | View return |
| 2014 | Cedars-Sinai Medical Care Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Florida Gulf Coast University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Cedars-Sinai Medical Center | 990 | Board Member | 5 | $0 | $0 | View return |
| 2013 | Leesar Inc. | 990 | Chairman | 0 | $0 | $0 | View return |
| 2013 | Cedars-Sinai Medical Care Foundation | 990 | Director | 1 | $0 | $0 | View return |