| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| David Ko | CNP | Diplomate | 9/7/1996 | Never |
| Michael Koerner | CNP | Diplomate | 4/16/1988 | Never |
| Irina Kogan | CNP, EM, NIOM | Diplomate | 11/3/2012 | 12/31/2022 |
| Susan Koh | EM | Diplomate | 4/29/2000 | 12/31/2020 |
| Michael H. Kohrman | CNP | Diplomate | 10/1/1988 | Never |
| Bradley Kolls | CNP | Diplomate | 11/2/2013 | 12/31/2033 |
| Betty Koo | CNP | Diplomate | 12/31/1994 | Never |
| Kenneth A. Kooi | EEG | Diplomate | 12/31/1953 | Never |
| James E. Kopp | EEG | Diplomate | 12/31/1971 | Never |
| Yale D. Koskoff | EEG | Diplomate | 12/31/1952 | Never |
| Prakash Kotagal | CNP | Diplomate | 12/31/1992 | Never |
| Sanjeev Kothare | EM | Diplomate | 4/29/2000 | 12/31/2020 |
| Jules T. Koveleski | EEG | Diplomate | 6/25/1977 | Never |
| Edward H. Kovnar | CNP | Diplomate | 9/16/1984 | Never |
| Arthur P. Kowell | CNP | Diplomate | 12/31/1983 | Never |
| James W. Kozelka | CNP | Diplomate | 12/31/1990 | Never |
| Ewa I. Koziorynska | CNP | Diplomate | 11/13/2010 | 12/31/2030 |
| Elena Kozochonok | EM | Diplomate | 6/21/2014 | 12/31/2034 |
| Ronald Kramer | EP | Diplomate | 9/20/1987 | Never |
| Bruce R. Krueger | EEG | Diplomate | 12/4/1977 | Never |
| Allan Krumholz | CNP | Diplomate | 12/6/1981 | Never |
| Andrew Krystal | CNP | Diplomate | 9/9/1995 | Never |
| Takafumi Kubota | EM | International | 11/30/2020 | 12/31/2030 |
| Catherine V. Kulick-Soper | NIOM | Diplomate | 6/14/2025 | 12/31/2035 |
| Fei-Tau Kung | CNP | Diplomate | 12/7/1985 | Never |
|
1658 Certificants
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