| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| Rajeshwari S. Mahalingam | EM | Diplomate | 11/12/2011 | 12/31/2031 |
| Bernard H. Maister | CNP | Diplomate | 12/31/1993 | Never |
| Tatiana Maleeva | EM | Diplomate | 9/29/2017 | 12/31/2027 |
| Sudhir Malik | CNP | Diplomate | 4/24/1993 | Never |
| Denise Malkowicz | EP | Diplomate | 4/29/2000 | 12/31/2010 |
| Beth Malow | CNP | Diplomate | 12/31/1995 | Never |
| George L. Maltby | EEG | Diplomate | 12/31/1952 | Never |
| Meenal Mamdani | CNP | Diplomate | 5/1/1983 | Never |
| Ram Mani | EM | Diplomate | 11/13/2010 | 12/31/2030 |
| Ramon Manon-Espaillat | NIOM | Diplomate | 6/15/2013 | 12/31/2023 |
| Ramon Manon-Espaillat | EM | Diplomate | 11/2/2013 | 12/31/2023 |
| Ramon Manon-Espaillat | CNP | Diplomate | 5/4/1986 | Never |
| Rohit A. Marawar | EM & CNP | Diplomate | 6/15/2013 | 12/31/2023 |
| Elliott Marcus | CNP | Diplomate | 12/31/1989 | Never |
| Joseph Marcus | CNP | Diplomate | 12/31/1983 | Never |
| Alberto A. Marinacci | EEG | Diplomate | 12/31/1952 | Never |
| Benjamin Mark | CNP | Diplomate | 4/15/1984 | Never |
| Omkar N. Markand | EEG | Diplomate | 12/31/1970 | Never |
| David I. Markovitz | CNP | Diplomate | 11/14/1982 | Never |
| William Marks | EM | Diplomate | 10/3/1998 | 12/31/2008 |
| Douglas W. Marshall | CNP | Diplomate | 11/14/1982 | Never |
| Curtis Marshall | EEG | Diplomate | 12/31/1952 | Never |
| H. Blair Marsteller | CNP | Diplomate | 3/19/1989 | Never |
| Jose C. Martin del Campo | CNP | Diplomate | 4/15/1984 | Never |
| Paula Martinez | CC-EEG | International | 6/18/2022 | 12/31/2032 |
|
1650 Certificants
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