| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| Raj Rajvihar Sivaraman Nair | EM | International | 6/12/2021 | 12/31/2031 |
| A. Ganesa Sivasubramaniam | CNP | Diplomate | 9/13/1997 | 12/31/2007 |
| Harold Skaggs, Jr. | EEG | Diplomate | 12/31/1972 | Never |
| Stanley A. Skinner | CNP | Diplomate | 4/16/1988 | Never |
| Karen L. Skjei | EM | Diplomate | 11/2/2013 | 12/31/2023 |
| Charles Skomer | CNP | Diplomate | 4/27/1985 | Never |
| Clare E. Skora | EM | Diplomate | 11/19/2022 | 12/31/2032 |
| Jeremy Slater | CNP | Diplomate | 9/13/1997 | Never |
| Robert Slater | CNP | Diplomate | 12/31/1980 | Never |
| Michael Slattery | EM | Diplomate | 10/3/1998 | Never |
| Michael Sluss | CNP | Diplomate | 11/22/1986 | Never |
| Joyce G. Small | EEG | Diplomate | 12/31/1963 | Never |
| Brien J. Smith | CNP | Diplomate | 12/31/1994 | Never |
| Michael C. Smith | CNP | Diplomate | 12/15/1991 | Never |
| Dennis B. Smith | EEG | Diplomate | 12/31/1974 | Never |
| J. Baldwin Smith, III | EEG | Diplomate | 12/31/1974 | Never |
| Gerald So | EM | Diplomate | 10/3/1998 | 12/31/2018 |
| Norman K. So | CNP | Diplomate | 9/20/1987 | Never |
| Elson So | CNP | Diplomate | 12/31/1983 | Never |
| Norman Jacob Sobol | CNP | Diplomate | 5/4/1980 | Never |
| Gail E. Solomon | CNP | Diplomate | 3/19/1989 | Never |
| Donald Jeffrey Solomon | CNP | Non-Diplomate | 5/4/1980 | Never |
| Mahendra Somasundaram | EEG | Diplomate | 12/6/1975 | Never |
| Ernest Somerville | CNP | Diplomate | 5/1/1983 | Never |
| James Y. Soong | CNP | Diplomate | 11/14/1982 | Never |
|
1627 Certificants
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