| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| 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 |
| Jean-Paul C. Spire | EEG | Diplomate | 12/31/1974 | Never |
| Mark C. Spitz | CNP | Diplomate | 12/7/1985 | Never |
| Wilford W. Spradlin | EEG | Diplomate | 12/31/1968 | Never |
| Nattakarn Sripratak | EM | International | 4/16/2016 | 12/31/2026 |
| Erik K. St. Louis | EM | Diplomate | 9/24/2000 | 12/31/2020 |
| Cynthia V. Stack | CNP | Diplomate | 12/31/1990 | Never |
| Gary Stanton | CNP | Diplomate | 9/16/1984 | Never |
| Randall R. Starkey | CNP | Diplomate | 4/27/1985 | Never |
| Antonio Stazio | CNP | Diplomate | 6/14/1981 | Never |
| Mark M. Stecker | CNP | Diplomate | 12/31/1989 | Never |
| Robert E. Steg | CNP | Diplomate | 4/16/1988 | Never |
| Lon R. Steinberg | NIOM | Diplomate | 10/24/2015 | 12/31/2025 |
| Raymond M. Stephens | CNP | Diplomate | 11/14/1982 | Never |
| John M. Stern | EM | Diplomate | 10/30/1999 | 12/31/2029 |
|
1627 Certificants
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