Disclaimer: Certification by the American Board of Sleep Medicine does not in itself confer authority to practice medicine beyond the authority granted by a state that issues a license to practice medicine.
The American Board of Sleep Medicine throughout its history offered non-physicians, specifically PhDs, the opportunity to sit for its examination. Many PhD candidates over the years successfully passed the examination and received the designation "diplomate of the American Board of Sleep Medicine." This designation must not be interpreted to mean that the American Board of Sleep Medicine designation supersedes any state or federal law with regard to medical license requirements for the treatment of patients. Those who have successfully passed the exam MUST be careful not to practice medicine outside of their legal limits.
| Name | City | State | Specialty | Certified |
| Mohamed A. Saad, M.D. | Louisville | KY | Pulmonology | 4/17/2003 |
| Fadi-Jean Saad, M.D. | Royal Oak | MI | Pulmonology | 9/19/2006 |
| Lebnan Sabah Saad, M.D. | Prospect | KY | Internal Medicine | 3/22/2005 |
| Zahra Saad Ayub, M.D. | Southborough | MA | Neurology | 3/24/2004 |
| Joel S. Sabangan, M.D. | Ardmore | OK | Pulmonology | 3/23/2005 |
| Mazen Sabbaq, M.D. | Pulmonology | 9/19/2006 | ||
| Asif Ali Saberi, M.D. | Atlanta | GA | Pulmonology | 3/22/2005 |
| Robert L. Sack, M.D. | Portland | OR | Psychiatry | 4/23/1990 |
| Prabhasadanam G. Sadhujan, M.D. | Chesterton | IN | Internal Medicine | 4/17/2003 |
| Bijan Sadrnoori, M.D. | Methuen | MA | Pulmonology | 4/29/1991 |
| Louis Saffran, M.D. | West Hempstead | NY | Pulmonology | 3/22/2005 |
| Boris Sagalovich, M.D. | Edison | NJ | Pulmonology | 4/15/2003 |
| Mark A. Sagin, M.D. | Cumberland | MD | Pulmonology | 4/6/1998 |
| Anurag Sahai, M.D. | Baldwinsville | NY | Pulmonology | 4/8/2002 |
| Tannaz Sahebjamei, M.D. | Leawood | KS | Pulmonology | 3/22/2005 |
| Gul K. Sahetya, M.D. | Bowling Green | KY | Pulmonology | 4/22/1996 |
| Mohammed Zaher Sahloul, M.D. | Oak Park | IL | Pulmonology | 4/6/1998 |
| Pradeep K. Sahota, M.D. | Columbia | MO | Neurology | 4/18/1988 |
| Mustufa T. Saifee, M.B., B.S. | St. George | UT | Pulmonology | 9/21/2005 |
| Daniel James Sak, D.O. | Auburn Hills | MI | Pulmonology | 3/26/2004 |
| Nidal Sakka, M.D. | Hoffman Estates | IL | Pulmonology | 3/22/2005 |
| Hussam Mohammad Sakkijha, M.D. | Little Rock | AR | Pulmonology | 3/23/2005 |
| Ammar Sakkour, M.D. | Los Angeles | CA | Pulmonology | 4/14/2003 |
| Jack J. Salah, M.D. | Jacksonville | FL | Pulmonology | 4/17/2000 |
| Khaleel Salahudeen, M.D. | Pulmonology | 9/21/2005 | ||
| Adil Salam, M.D. | Westport | CT | Pulmonology | 9/19/2006 |
| Rahat Salamat, M.B., B.S. | Sikeston | MO | Pulmonology | 9/19/2006 |
| Nikhat Salamat, M.B., B.S. | O' Fallon | MO | Pulmonology | 9/21/2005 |
| David Salazar, M.D. | San Antonio | TX | Pulmonology | 3/26/2004 |
| John Salazar-Schicchi, M.D. | Pulmonology | 9/21/2005 | ||
| Larry Michael Salberg, M.D. | Schererville | IN | Neurology | 3/26/2004 |
| Khaled Medhat Saleh, M.D. | Phoenix | AZ | Pulmonology | 3/22/2005 |
| Samer A. Saleh, MBBCh | Chapmanville | WV | Pulmonology | 9/19/2006 |
| Muhammad Mujahid Salim, M.B.,B.S. | Chandler | AZ | Pulmonology | 3/26/2004 |
| Victor Camille Salloum, M.D. | Wichita | KS | Pulmonology | 9/19/2006 |
| Raymond J. Salomone, M.D. | Concord | OH | Pulmonology | 4/24/1995 |
| Ahmad Rami Saltagi, M.D. | Toledo | OH | Internal Medicine | 3/22/2005 |
| Lawrence M. Saltis, M.D. | Akron | OH | Neurology | 4/6/1998 |
| Michael Angelo Salvatore, M.D. | Milton | DE | Pulmonology | 4/8/2002 |
| Damon Richard Salzman, M.D. | Suffern | NY | Neurology | 3/23/2005 |
| Maria C. Sam, M.D. | Kernersville | NC | Neurology | 4/8/2002 |
| Gautam Samadder, M.D. | Columbus | OH | Pulmonology | 4/11/1999 |
| Kayalvizhi Sambandam, M.D. | Staten Island | NY | Pulmonology | 4/8/2002 |
| Mohammed Tariq Sameen, M.D. | Westbury | NY | Internal Medicine | 3/26/2004 |
| Charles H. Samuels, M.D. | Calgary | AB | Internal Medicine | 3/26/2004 |
| Robert E. Sandblom, M.D. | Bellevue | WA | Pulmonology | 4/8/2002 |
| Anna Marie C. Sander, M.D. | Indianapolis | IN | Pulmonology | 4/6/1998 |
| Herbert F. Sanders, M.D. | Savannah | GA | Neurology | 4/18/1988 |
| Mark Heims Sanders, M.D. | Pittsburgh | PA | Pulmonology | 4/11/1999 |
| Rahul Bart Sangal, M.D. | Troy | MI | Psychiatry | 3/30/1985 |
| Richard M. Sankary, M.D. | Pinole | CA | Pulmonology | 4/24/1995 |
| Silverio M. Santiago, M.D. | Los Angeles | CA | Pulmonology | 4/6/1998 |
| Rafael Manuel Santiago, M.D. | San Antonio | TX | Pulmonology | 4/16/2003 |
| Cesar Cruz Santos, M.D. | Winston-Salem | NC | Neurology | 4/28/1997 |
| Pratap Saraf, M.D. | Arcadia | CA | Pulmonology | 4/11/1999 |
| Priscilla Socorro Sarinas, M.D. | Mountain View | CA | Pulmonology | 9/20/2005 |
| Charanjit L. Saroa, M.D. | Stevenson Ranch | CA | Pulmonology | 3/26/2004 |
| Bipin D. Sarodia, M.D. | Flanders | NJ | Internal Medicine | 4/28/1997 |
| Andreas Sarrigiannidis, M.D. | Bismarck | ND | Pulmonology | 9/21/2005 |
| Bassam Jabra Sarrouj, M.D. | Sylvania | OH | Pulmonology | 9/19/2006 |
| Aliya Iftikhar Sarwar, M.B., B.S. | Pearland | TX | Neurology | 9/19/2006 |
| Akmal Sarwar, M.D. | Bremerton | WA | Pulmonology | 4/23/2001 |
| Paul Saskin, Ph.D. | Las Vegas | NV | Psychology | 4/24/1989 |
| Jon F. Sassin, M.D. | Santa Rosa | CA | Neurology | 10/25/1979 |
| Michael Sateia, M.D. | Lebanon | NH | Psychiatry | 10/30/1981 |
| Robert O. Satriale, M.D. | Coatesville | PA | Pulmonology | 4/15/2003 |
| Farooq Sattar, M.D. | Grove City | OH | Pulmonology | 9/21/2005 |
| Tausif Sayied, M.D. | Louisville | KY | Internal Medicine | 9/21/2005 |
| Dottie Ann D. Sazon, M.D. | Chula Vista | CA | Pulmonology | 4/6/1998 |
| Irene NMN Scaltsas, M.D. | Shreveport | LA | Neurology | 9/21/2005 |
| Thomas E. Scammell, M.D. | Boston | MA | Neurology | 4/6/1998 |
| Robert A. Scanlon Jr., D.O. | Ramsey | NJ | Pulmonology | 9/19/2006 |
| Alan E. Schaffer, M.D. | Goshen | NY | Pulmonology | 4/14/2003 |
| David A. Schaffert, M.D. | Midland | MI | Neurology | 4/11/1999 |
| Martin B. Scharf, Ph.D. | Cincinnati | OH | Psychopharmacology | 3/4/1982 |
| Steven Scharf, M.D., Ph.D. | New Hyde Park | NY | Pulmonology | 4/17/2000 |
| Steven J. Scheer, M.D. | Fort Thomas | KY | Physical Medicine | 4/23/2001 |
| Joseph B. Schellenberg, M.D. | Pulmonology | 4/17/2000 | ||
| M. Elizabeth Schenkel, M.D. | Endocrinology | 4/24/1989 | ||
| Albert H. Scherff, III, M.D. | Athens | AL | Pulmonology | 4/6/1998 |
| Daron Lynn Scherr, M.D. | Idaho Falls | ID | Internal Medicine | 4/16/2003 |
| Herbert H. Scherzer, M.D. | Hartford | CT | Pulmonology | 4/17/2000 |
| Gregory J. Schilero, M.D. | White Plains | NY | Pulmonology | 4/23/2001 |
| Marc F. Schlosberg, M.D. | Washington | DC | Neurology | 4/28/1997 |
| Helmut S. Schmidt, M.D. | Dublin | OH | Psychiatry | 10/3/1980 |
| Markus H. Schmidt, M.D., Ph.D. | Columbus | OH | Neurology | 4/14/2003 |
| Douglas F. Schmidt, Ph.D. | Seattle | WA | Philosophy | 3/26/2004 |
| Wolfgang W. Schmidt-Nowara, M.D. | Dallas | TX | Pulmonology | 3/4/1982 |
| Robert A. Schnapper, M.D. | Atlanta | GA | Neurology | 4/23/1990 |
| Lynelle Marie Schneeberg, Ph.D. | Fairfield | CT | Clinical Psychology | 9/21/2005 |
| Hartmut Schneider, Ph.D. | Lutherville | MD | Internal Medicine | 3/26/2004 |
| Bradley John Schnierow, M.D. | Del Mar | CA | Psychiatry | 4/8/2002 |
| John E. Schoell, M.D. | Vidalia | GA | Pulmonology | 3/22/2005 |
| Lawrence S. Schoen, Ph.D. | Mobile | AL | Psychology | 3/30/1985 |
| Joseph Alvin Schoenhals, M.D. | Salt Lake City | UT | Pulmonology | 4/16/2003 |
| Helena M. Schotland, M.D. | St. Louis | MO | Pulmonology | 4/6/1998 |
| Robert A. Schoumacher, M.D. | Memphis | TN | Pediatric Pulmonology | 4/17/2000 |
| Neil Joseph Schrandt, M.D. | Wilmington | DE | Neurology | 3/23/2005 |
| Noah Brad Schreibman, M.D. | Boca Raton | FL | Pulmonology | 3/26/2004 |
| Andrew David Schriber, M.D. | Moorestown | NJ | Pulmonology | 3/22/2005 |
| Robert W. Schriner, M.D. | Collierville | TN | Pulmonology | 4/24/1995 |
| Charles E. Schroeder, M.D. | Olathe | KS | Pulmonology | 4/16/2003 |
| Sandra Kay Schuldheisz, M.D. | Kalamazoo | MI | Pulmonology | 3/26/2004 |
| Paul M. Schuler, M.D. | Shreveport | LA | Pulmonology | 4/23/2001 |
| Hans E. Schuller, M.D. | Slidell | LA | Pulmonology | 4/11/1999 |
| David Alexander Schulman, M.D. | Atlanta | GA | Pulmonology | 4/15/2003 |
| Charles E. Schultz, M.D. | Jacksonville | AR | Neurology | 4/8/2002 |
| Edward P. Schuman, M.D. | Meadowbrook | PA | Pulmonology | 4/17/2000 |
| Richard John Schumann, Jr., M.D. | Newark | DE | Neurology | 9/21/2005 |
| Sharon L. Schutte, M.D. | Philadelphia | PA | Neurology/Sleep Disorders Medicine | 4/25/1994 |
| Richard J. Schwab, M.D. | Philadelphia | PA | Pulmonology | 4/6/1992 |
| John Kyle Schwab, M.D. | Baton Rouge | LA | Internal Medicine, Pediatrics | 3/22/2005 |
| Stephanie Schwartz, M.D., Ph.D. | Baytown | TX | Neurology | 4/6/1992 |
| Daniel J. Schwartz, M.D. | Tampa | FL | Pulmonology | 4/6/1998 |
| Alan R. Schwartz, M.D. | Baltimore | MD | Pulmonology | 4/23/1990 |
| Oscar A. Schwartz, M.D. | St. Louis | MO | Pulmonology | 4/17/2000 |
| Jonathan R. L. Schwartz, M.D. | Oklahoma City | OK | Pulmonology | 4/23/1990 |
| Elliott R. Schwartz, D.O. | Oklahoma City | OK | Pulmonology | 4/6/1998 |
| Paula K. Schweitzer, Ph.D. | Chesterfield | MO | Psychology/Sleep Dis Med | 3/25/1983 |
| Graham C. Scott, M.D. | Charleston | SC | Pulmonology | 4/25/1994 |
| Jeffrey A. Scott, M.D. | Norfolk | VA | Pulmonology | 4/11/1999 |
| Samuel David Scott, M.D. | Erdenheim | PA | Pulmonology | 3/26/2004 |
| Lawrence Scrima, Ph.D. | Aurora | CO | Psychology | 3/4/1982 |
| James W. Sears, M.D. | Bangor | ME | Neurology | 4/17/2000 |
| Carolina Que See, M.D. | East Wenatchee | WA | Pulmonology | 9/19/2006 |
| Mohamed S. Seedat, M.D. | Rome | NY | Pulmonology | 9/21/2005 |
| Marc M. Seelagy, M.D. | Trenton | NJ | Pulmonology | 4/24/1995 |
| Sudhir Sehgal, M.B.,B.S. | Huntsville | TX | Pulmonology | 3/26/2004 |
| David J. Seiden, M.D. | Pembroke Pines | FL | Neurology | 4/28/1997 |
| Stephen Michael Seink, M.D. | Chicago | IL | Pulmonology | 3/22/2005 |
| Joseph F. Seipel, M.D. | New Albany | IN | Neurology | 4/11/1999 |
| Thomandram S. Sekar, M.D. | Fort Wayne | IN | Pulmonology | 4/24/1989 |
| Paul A. Selecky, M.D. | Newport Beach | CA | Pulmonology | 4/24/1989 |
| Marlon S. Seliger, M.D. | Brooklyn | NY | Neurology | 4/6/1992 |
| Richard H. Seligman, M.D. | Albuquerque | NM | Pulmonology | 4/28/1997 |
| Robert T. Semmler, M.D. | Peterborough | ON | Neurology | 4/6/1998 |
| Mithu Sen, M.D. | London | ON | Pulmonology | 9/21/2005 |
| Robert A. Serio, M.D. | Huntsville | AL | Pulmonology | 4/28/1997 |
| Pradip Sethi, M.D. | Elgin | IL | Neurology | 4/6/1992 |
| Deborah Sewitch, Ph.D. | Chicago | IL | Psychology | 3/31/1984 |
| Marvin Walker Sexton, M.D. | Dothan | AL | Pulmonology | 3/26/2004 |
| Masud Seyal, M.D., Ph.D. | Sacramento | CA | Neurology | 4/25/1994 |
| Farhad Faraji Shadan, M.D., Ph.D. | Carlsbad | CA | Internal Medicine | 3/22/2005 |
| Daniel A. Shade, M.D. | Pittsburgh | PA | Pulmonology | 4/11/1999 |
| Shirin Shafazand, M.D. | Miami | FL | Pulmonology | 4/15/2003 |
| Joseph I. Shaffer, Ph.D. | Toledo | OH | Psychology | 4/24/1989 |
| James P. Shaffer, M.D. | Melbourne | FL | Pulmonology | 4/8/2002 |
| Rashid Shafiq, M.B., B.S. | Temple | TX | Pulmonology | 3/23/2005 |
| Renata Shafor, M.D. | San Diego | CA | Neurology | 3/30/1985 |
| Ashvin K. Shah, M.D. | Yuma | AZ | Pulmonology | 4/6/1998 |
| Hemang Shah, M.D. | Portsmouth | VA | Neurology | 4/6/1998 |
| Ambrish C. Shah, M.D., P.A. | DECEASED | Pulmonology | 4/25/1994 | |
| Zia H. Shah, M.D. | Vestal | NY | Pulmonology | 4/11/1999 |
| Pankaj K. Shah, M.D. | Sugarland | TX | Pulmonology | 3/26/2004 |
| Rasik V. Shah, M.D. | Pediatrics | 9/19/2006 | ||
| Kumudchandra Jamnadas Shah, M.D. | Gadsden | AL | Pulmonology | 3/23/2005 |
| Nikhil Dinesh Shah, M.D. | South Pasadena | CA | Internal Medicine | 3/23/2005 |
| Suketu Kanu Shah, M.D. | Lititz | PA | Pulmonology | 3/26/2004 |
| Kiran Premchand Shah, M.D. | Carrollton | TX | Neurology | 4/15/2003 |
| Syed Jirgis Shah, M.D. | Dania Beach | FL | Internal Medicine | 4/14/2003 |
| Sarah Shahabuddin Srivastava, M.D. | Pulmonology | 4/17/2000 | ||
| Syed Khurram Shahryar, M.B., B.S. | Phoenix | AZ | Pulmonology | 3/22/2005 |
| Fidaa H. Shaib, M.D. | Louisville | KY | Internal Medicine | 3/22/2005 |
| Zubair Ahmed Shaikh, M.D. | Mount Pleasant | MI | Neurology | 3/23/2005 |
| Warren Irvin Shaikun, M.D. | Prospect | KY | Pulmonology | 9/19/2006 |
| Morteza Shamsnia, M.D. | Metairie | LA | Neurology | 3/22/2005 |
| Said M. Shanawani, M.D. | Short Hills | NJ | Neurology | 4/8/2002 |
| Sampathkumar Shanmugham, M.D. | Sanford | FL | Neurology | 4/8/2002 |
| Steven M. Shapiro, M.D. | Pompano Beach | FL | Pulmonology | 4/6/1998 |
| Craig S. Shapiro, M.D. | Pueblo | CO | Pulmonology | 4/28/1997 |
| Howard D. Shapiro, M.D. | Akron | OH | Neurology | 4/11/1999 |
| Amir Sharafkhaneh, M.D. | Houston | TX | Pulmonology | 4/23/2001 |
| Anuja Sharma, M.D. | St. Paul | MN | Pulmonology | 4/6/1998 |
| Rakesh Sharma, M.D. | Ridgewood | NJ | Pulmonology | 4/11/1999 |
| Ved Prakash Sharma, M.D. | Jersey City | NJ | Pulmonology | 9/21/2005 |
| Arunabh Sharma, M.D. | Oshawa | ON | Pulmonology | 4/16/2003 |
| Satyendra Sharma, M.D. | Winnipeg | MB | Pulmonology | 4/15/2003 |
| Sunil Sharma, M.B., B.S. | Brookfield | WI | Pulmonology | 3/23/2005 |
| Kailash C. Sharma, M.B., B.S. | Burr Ridge | IL | Pulmonology | 3/26/2004 |
| Denise Sharon, M.D., Ph.D. | New Orleans | LA | Psychology | 4/28/1997 |
| R. H. Shashikumar, M.B.,B.S. | Pulmonology | 4/17/2003 | ||
| Jason A. Shatkin, M.D. | Wesley Hills | NY | Pulmonology | 4/14/2003 |
| Alan John Shatzel, D.O. | Rocklin | CA | Neurology | 3/23/2005 |
| David L. Shaw, M.D. | Tallahassee | FL | Neurology | 4/24/1989 |
| Imad Shawa, M.D. | Columbis | MO | Pulmonology | 3/26/2004 |
| John C. Shehan, M.D. | Omaha | NE | Pulmonology | 4/14/2003 |
| Salman Qadeer Sheikh, M.D. | Wyomissing | PA | Internal Medicine | 3/23/2005 |
| Stephen H. Sheldon, D.O. | Chicago | IL | Pediatrics | 4/18/1988 |
| James R. Sheller, M.D. | Nashville | TN | Pulmonology | 4/28/1997 |
| Robert G. Shellman, M.D. | Beech Grove | IN | Pulmonology | 4/6/1992 |
| Vasanti Nitin Shende, M.B., B.S., M.D. | Guelph | ON | Pulmonology | 9/21/2005 |
| John W. Shepard, M.D. | Rochester | MN | Pulmonology | 4/18/1988 |
| Martha Roma Shepertycky, M.D. | Winnipeg | MB | Pulmonology | 3/22/2005 |
| Aaron Emanuel Sher, M.D. | Delmar | NY | Otolaryngology | 4/14/2003 |
| Kevin Earl Sherer, M.D. | Las Cruces | NM | Internal Medicine | 9/19/2006 |
| Ravinder Pal Singh Shergill, M.D. | Rodeo | CA | Pulmonology | 3/26/2004 |
| William C. Sherrill, Jr., M.D. | Charlotte | NC | Pulmonology | 4/11/1999 |
| Betsy Sherry, M.D. | Cambridge | MA | Neurology | 4/25/1994 |
| Shashidhar M. Shettar, M.D. | Jackson | MS | Psychiatry | 4/23/1990 |
| Muhammad Hadi Shibli, M.D. | Bethesda | MD | Pulmonology | 4/15/2003 |
| Kevin Charles Shilling, M.D. | Salt Lake City | UT | Pulmonology | 3/26/2004 |
| Neil Shinder, M.D. | Scotch Plains | NJ | Pulmonology | 4/11/1999 |
| James E. Shipley, M.D. | Waltham | MA | Psychiatry | 3/30/1985 |
| Urmila Shivaram, M.D. | Hillcrest | NY | Pulmonology | 4/23/2001 |
| Lisa Jo Shives, M.D. | Chicago | IL | Internal Medicine | 9/21/2005 |
| Catherine T. Shoff, D.O. | San Antonio | TX | Internal Medicine | 9/19/2006 |
| Alan J. Sholomskas, M.D. | New Haven | CT | Psychiatry | 4/29/1991 |
| Neil S. Shore, M.D. | Salem | MA | Pulmonology | 4/6/1992 |
| Richard M. Shoup, M.D. | Manchester | CT | Pulmonology | 4/23/2001 |
| Robert B. Shpiner, M.D. | Los Angeles | CA | Pulmonology | 4/25/1994 |
| Deepak K. Shrivastava, M.B., B.S. | Stockton | CA | Pulmonology | 9/19/2006 |
| Richard A. Shubin, M.D. | Arcadia | CA | Neurology | 4/25/1994 |
| David W. Shucard, Ph.D. | Buffalo | NY | Psychology/Physiology | 4/6/1998 |
| Oksana Victorovna Shulzhenko, M.D. | Lisle | IL | Pulmonology | 3/23/2005 |
| Richard D. Shusterman, M.D. | Langhorne | PA | Pulmonology | 4/24/1995 |
| Peter Siao Tick Chong, M.D. | Boston | MA | Neurology | 4/25/1994 |
| Robert Vincent Sibilia, M.D. | Wooster | OH | Pediatric Pulmonology | 4/16/2003 |
| Anthony L. Sica, Ph.D. | New Hyde Park | NY | Neuropsychology | 4/6/1998 |
| Ather J. Siddiqi, M.D. | The Woodlands | TX | Pulmonology | 4/17/2000 |
| Mahmood Islam Siddique, D.O. | Lawrenceville | NJ | Pulmonology | 4/8/2002 |
| Masood Ahmed Siddiqui, M.B., B.S. | Magnolia | DE | Pulmonology | 3/23/2005 |
| Vaqar Khalid Siddiqui, M.B., B.S. | Troy | MI | Neurology | 9/21/2005 |
| Jagdish R. Sidhpura, M.B., B.S. | Columbus | GA | Neurology | 9/21/2005 |
| Pawan Sikka, M.D. | Temple | TX | Pulmonology | 4/15/2003 |
| Steven Lee Silas, M.D. | Hermitage | TN | Pulmonology | 3/26/2004 |
| Michael H. Silber, M.B., Ch.B. | Rochester | MN | Neurology | 4/19/1993 |
| Stephanie Amy Silberman, Ph.D. | Fort Lauderdale | FL | Clinical Psychology | 3/26/2004 |
| Thomas M. Siler, M.D. | St. Charles | MO | Pulmonology | 4/11/1999 |
| Jeffrey E. Silver, M.D., Ph.D. | Welleslel | MA | Internal Medicine | 3/26/2004 |
| Michael J. Silverglat, M.D. | Missoula | MT | Psychiatry | 4/8/2002 |
| Amanuel Sima, M.D. | Los Angeles | CA | Pulmonology | 3/26/2004 |
| Narong Simakajornboon, M.D. | New Orleans | LA | Pulmonology | 4/23/2001 |
| Jerald H. Simmons, M.D. | The Woodlands | TX | Neurology | 4/19/1993 |
| Richard D. Simon, Jr., M.D. | Walla Walla | WA | Internal Medicine | 4/22/1996 |
| Jaime Jude Simon Grahe, D.O. | Internal Medicine | 9/19/2006 | ||
| Robert Ian Simpson, M.D. | Salt Lake City | UT | Pulmonology | 3/23/2005 |
| Donald D. Sin, M.D. | Edmonton | AB | Pulmonology | 4/17/2000 |
| Ravi Kumar Reddy Singareddy, M.B., B.S. | Hummelstown | PA | Internal Medicine | 9/21/2005 |
| Glenn R. Singer, M.D. | Ft. Lauderdale | FL | Pulmonology | 4/17/2000 |
| Harbhajan Singh, M.D. | Rockville Centre | NY | Internal Medicine | 4/17/2000 |
| Baldev Singh, M.D. | Little Rock | AR | Internal Medicine | 4/6/1998 |
| Narendra Singh, M.B., B.S. | Searingtown | NY | Pulmonology | 9/21/2005 |
| Chandra Vir Singh, M.D. | Avon | OH | Pulmonology | 3/23/2005 |
| Ashish Singh, M.D. | Henderson | NC | Internal Medicine | 4/8/2002 |
| Manjamalai Sivaraman, M.D. | Salem | MA | Neurology | 3/26/2004 |
| James B. Skatrud, M.D. | Madison | WI | Pulmonology | 3/26/2004 |
| Christopher Robin Skinner, M.D. | Ottawa | ON | Pulmonology | 3/23/2005 |
| Roland L. Skinner III, M.D. | Florence | SC | Neurology | 4/28/1997 |
| Neil Martin Skjodt, M.D. | Edmonton | AB | Internal Medicine | 3/26/2004 |
| Robert P. Skomro, M.D. | Saskatoon | SK | Pulmonology | 4/23/2001 |
| Alvaro H. Skupin, M.D. | Miami | FL | Pulmonology | 4/29/1991 |
| George F. Slade, M.D. | Tallahassee | FL | Neurology | 4/18/1988 |
| David I. Slamowitz, M.D. | Denver | CO | Pulmonology | 4/23/2001 |
| Jeremy D. Slater, M.D. | Springfield | MO | Neurology | 4/17/2000 |
| Michael R. Slattery, M.D. | Binghamton | NY | Neurology/Psychiatry | 4/24/1995 |
| Duane E. Slegel, Ph.D. | Dallas | TX | Psychology | 4/28/1997 |
| Jeffery Roy Smale, M.D. | West Bend | WI | Pulmonology | 4/16/2003 |
| Sheila Marie Smalls, M.D. | Rutherfordton | NC | Neurology | 3/26/2004 |
| Peter Roy Smethurst, M.D. | Newport Beach | CA | Internal Medicine | 9/19/2006 |
| Daniel R. Smith, M.D. | Chattanooga | TN | Pulmonology | 4/6/1998 |
| James R. Smith, M.D. | Budd Lake | NJ | Internal Medicine | 4/28/1997 |
| Sydney A. Smith, M.D. | Gulfport | MS | Neurology | 4/25/1994 |
| Wilson P. Smith, Jr., M.D. | Spartanburg | SC | Pulmonology | 4/18/1988 |
| Harold R. Smith, M.D. | Irvine | CA | Neurology | 4/23/1990 |
| Robert C. Smith, M.D. | East Lansing | MI | Internal Medicine | 3/30/1985 |
| Stephen B. Smith, M.D. | Omaha | NE | Pulmonology | 4/29/1991 |
| Roger S. Smith, D.O. | Palo Alto | CA | Psychiatry | 4/22/1996 |
| J. Baldwin Smith, M.D. | Winston-Salem | NC | Neurology | 4/24/1989 |
| James Patrick Smith, M.D. | Matthews | NC | Pulmonology | 3/26/2004 |
| Allen O. Smith, M.D. | Hickory | NC | Neurology | 4/8/2002 |
| Edward Robert Smith, M.D. | Denver | CO | Pulmonology | 4/8/2002 |
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