| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| Maria Sande Lemos | CNP | Diplomate | 12/31/1990 | Never |
| Margaret A. Lennox-Buchthal | EEG | Diplomate | 12/31/1952 | Never |
| Ilo Leppik | EEG | Diplomate | 4/30/1978 | Never |
| Pinchas Lerman | EEG | Diplomate | 12/31/1965 | Never |
| Robert F. Leroy | CNP | Diplomate | 9/20/1987 | Never |
| William H. Leschey | EEG | Diplomate | 12/31/1974 | Never |
| Ronald Lesser | CNP | Diplomate | 6/14/1981 | Never |
| Paul M. Levin | EEG | Diplomate | 12/31/1952 | Never |
| Paul M. Levisohn | CNP | Diplomate | 9/20/1987 | Never |
| Kirk Levy | EM | Diplomate | 10/30/1999 | 12/31/2009 |
| Susan Levy | CNP | Diplomate | 12/7/1985 | Never |
| Darrell Vincent Lewis | EEG | Diplomate | 12/31/1974 | Never |
| James A. Lewis | EEG | Diplomate | 12/31/1973 | Never |
| Samden Lhatoo | EM | International | 10/25/2014 | 12/31/2024 |
| Siyun Li | EM, NIOM, CNP | Diplomate | 5/21/2011 | 12/31/2021 |
| Wladimir T. Liberson | EEG | Diplomate | 12/31/1952 | Never |
| William E. Lievens | EM | Diplomate | 6/12/2021 | 12/31/2031 |
| Kenneth W. Lilik | CNP | Diplomate | 4/15/1984 | Never |
| Kuei-Cheng Lim | EM | Diplomate | 11/3/2012 | 12/31/2022 |
| Li Ling Lim | CNP | Diplomate | 10/3/2004 | 12/31/2014 |
| Shih-Hui Lim | CNP | Diplomate | 9/22/1990 | Never |
| Leonor Lim | CNP | Diplomate | 5/1/1983 | Never |
| Elinor Y. Lin | CNP | Diplomate | 6/15/2013 | 12/31/2023 |
| Marc A. Linden | CNP | Diplomate | 12/31/1983 | Never |
| Donald B. Lindsley | EEG | Diplomate | 12/31/1952 | Never |
|
1611 Certificants
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