| Name | Track | Diplomate Status | Certified Date | Expires |
|---|---|---|---|---|
| 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 |
| Janice R. Stevens | EEG | Diplomate | 12/31/1962 | Never |
| William A. Stewart | CNP | Diplomate | 5/4/1986 | Never |
| Lever F. Stewart | EEG | Diplomate | 12/31/1956 | Never |
| James J. Stockard | CNP | Diplomate | 12/31/1980 | Never |
| Colin W. Stokol | CNP | Diplomate | 12/31/1980 | Never |
| Sarah E. Stolz | CNP | Diplomate | 12/31/1992 | Never |
| James L. Stone | CNP | Diplomate | 11/22/1986 | Never |
| Hans Strauss | EEG | Diplomate | 12/31/1952 | Never |
| William D. Strayhorn, IV | EM | Diplomate | 11/13/2010 | 12/31/2030 |
| Leopold J. Streletz | EEG | Diplomate | 12/31/1975 | Never |
| John K. Sturman, Jr. | CNP | Diplomate | 4/15/1984 | Never |
| Phillip C. Su | EEG | Diplomate | 12/5/1976 | Never |
| Bakkiam Subbiah | CNP | Diplomate | 12/31/1989 | Never |
| Michael Sullivan | CNP | Diplomate | 9/16/1984 | Never |
| Fahd Sultan | EM | Diplomate | 11/19/2022 | 12/31/2032 |
| Fahd Sultan | CC-EEG | Diplomate | 11/19/2022 | 12/31/2032 |
| John Sum | CNP | Diplomate | 9/7/1996 | Never |
| Mecheri B.M. Sundaram | CNP | Diplomate | 12/7/1985 | Never |
| Maria Sunseri | CNP | Diplomate | 4/12/1985 | Never |
|
1608 Certificants
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