| 2024 | United States Tennis Association Incorporated | 990 | Chairman & President | 19 | $35,000 | $0 | View return |
| 2024 | Usta Player Development Incorporated | 990 | Chairman & President | 1 | $0 | $35,000 | View return |
| 2024 | Usta National Tennis Center Incorporated | 990 | Chairman & President | 4 | $0 | $35,000 | View return |
| 2024 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2023 | National Collegiate Athletic Association | 990 | Chief Medical Officer (Until 6/1/24) | 40 | $985,527 | $0 | View return |
| 2023 | United States Tennis Association Incorporated | 990 | Chairman & President | 19 | $35,000 | $0 | View return |
| 2023 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2022 | United States Tennis Association Incorporated | 990 | First Vice President | 10 | $25,000 | $0 | View return |
| 2022 | Usta Foundation Incorporated | 990 | Director | 3 | $0 | $25,000 | View return |
| 2022 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2021 | United States Tennis Association Incorporated | 990 | First Vice President | 10 | $25,000 | $0 | View return |
| 2021 | Usta Foundation Incorporated | 990 | Director | 3 | $0 | $25,000 | View return |
| 2021 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2020 | Usta Foundation Incorporated | 990 | Director | 3 | $0 | $15,000 | View return |
| 2020 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2019 | Usta Foundation Incorporated | 990 | Director | 3 | $0 | $20,000 | View return |
| 2019 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2018 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2017 | National Collegiate Athletic Association | 990 | Chief Medical Officer | 40 | $620,900 | $0 | View return |
| 2017 | United States Tennis Association Incorporated | 990 | Director | 5 | $10,000 | $0 | View return |
| 2017 | Usta Player Development Incorporated | 990 | Director | 1 | $0 | $10,000 | View return |
| 2017 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2016 | National Collegiate Athletic Association | 990 | Chief Medical Officer | 40 | $542,355 | $0 | View return |
| 2016 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2015 | National Collegiate Athletic Association | 990 | Chief Medical Officer | 40 | $520,545 | $0 | View return |
| 2015 | Datalys Center for Sports Injury Research and Prevention Inc. | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2014 | National Collegiate Athletic Association | 990 | Chief Medical Officer | 40 | $488,826 | $0 | View return |
| 2013 | National Collegiate Athletic Association | 990 | Chief Medical Officer | 40 | $436,662 | $0 | View return |
