| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| 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 |
| Atiwat Soontornpun | EM | International | 11/30/2020 | 12/31/2030 |
| Emilio Soria | CNP | Diplomate | 12/31/1992 | Never |
| Veronica Sosa | EM | Diplomate | 10/3/1998 | 12/31/2018 |
| Jason R. Soss | EM | Diplomate | 9/21/2003 | 12/31/2033 |
| Marian V. Sowa | CNP | Diplomate | 9/16/1984 | Never |
| C. Rainer Spehlmann | EEG | Diplomate | 12/31/1963 | Never |
| Susan Spencer | CNP | Diplomate | 4/16/1988 | Never |
| Michael R. Sperling | CNP | Diplomate | 4/15/1984 | Never |
| Ernest A. Spiegel | EEG | Diplomate | 12/31/1958 | Never |
| Steven Spillers | CNP | Non-diplomate | 4/25/1998 | Never |
| Paul R. Spilsbury | CNP | Diplomate | 12/31/1983 | Never |
|
1641 Certificants
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