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 |
| Ousama Dabbagh, M.D. | Columbia | MO | Pulmonology | 3/24/2004 |
| Harinathrao R. Dacha, M.D. | Elyria | OH | Pulmonology | 4/8/2002 |
| Rajesh D. Dagli, M.D. | Kalamazoo | MI | Neurology | 4/24/1989 |
| Houman Dahi, M.D. | Metairie | LA | Pulmonology | 3/22/2005 |
| Ronald E. Dahl, M.D. | Pittsburgh | PA | Pediatrics/Psychiatry | 4/24/1989 |
| Manojpal S. Dahuja, M.D. | Silver Spring | MD | Pulmonology | 4/23/2001 |
| Firas Dairi, M.D. | Pulmonology | 4/11/1999 | ||
| Jeff M. Daiter, M.D. | Richmond Hill | ON | Family Medicine | 4/23/2001 |
| Riad Dakheel,M.D. | Bowie | MD | Pulmonology | 4/6/1998 |
| Wheeler John Dale, M.D. | Lexington | KY | Pulmonology | 3/23/2005 |
| Robert E. Dales, M.D. | Ottawa | ON | Pulmonology | 4/11/1999 |
| Mohammed Mazen Dallal, M.D. | Dayton | OH | Pulmonology | 4/17/2000 |
| James A. Daly, M.D. | Savannah | GA | Pulmonology | 4/6/1992 |
| Paul D'Ambrosio, Ph.D. | Stamford | CT | Psychology | 9/19/2006 |
| Carolyn M. D'Ambrosio, M.D. | Boston | MA | Pulmonology | 4/11/1999 |
| Kimberly Sue Damrow, M.D. | Helena | MT | Internal Medicine | 3/22/2005 |
| David Ross Dancey, M.D. | Toronto | ON | Internal Medicine | 4/23/2001 |
| Lynn A. D'Andrea, M.D. | Charlottesville | VA | Pediatrics/Pulmonology | 4/23/2001 |
| Dawn Yael Daniel, M.D. | Tiburon | CA | Pulmonology | 3/23/2005 |
| Suresh Daniel, M.B.,B.S. | Pearland | TX | Pulmonology | 4/15/2003 |
| Ingela Liz helen Danielsson-Sanden, M.D. | North East | MD | Neurology | 3/23/2005 |
| Irena Danys, M.D. | Gilford | NH | Neurology | 4/28/1997 |
| Michael L. Darnell, M.D. | Denver | CO | Pulmonology | 4/15/2003 |
| Arvind K. Das, M.D. | Marlboro | NJ | Pulmonology | 4/23/2001 |
| Aneesa Marie Das, M.D. | Martinez | GA | Pulmonology | 9/19/2006 |
| Asok Dasgupta, M.D. | Columbus | OH | Pulmonology | 4/11/1999 |
| Richard Mitchell Dasheiff, M.D. | Dallas | TX | Neurology | 4/15/2003 |
| Sharad Kumar Dass, M.D. | Granada Hills | CA | Pulmonology | 3/23/2005 |
| Marylin A. Datzman, M.D. | Eugene | OR | Pulmonology | 4/24/1995 |
| Ted W. Daughety, M.D. | Topeka | KS | Pulmonology | 4/29/1991 |
| Timothy E. Daum, M.D. | Grand Rapids | MI | Pulmonology | 4/6/1998 |
| Lawrence D. Davanzo, D.O. | Somerset | NJ | Pulmonology | 4/17/2000 |
| Ritu Dave, M.B.,B.S. | Stockton | CA | Pulmonology | 3/24/2004 |
| Wendy Louise Davidson, M.D. | Fairhope | AL | Pulmonology | 3/22/2005 |
| Jonathan Sam Davidson, M.D. | Fresno | CA | Internal Medicine | 9/19/2006 |
| Lisa R. Davidson, M.D. | N. Mankato | MN | Neurology | 3/24/2004 |
| Charles Robert Davies, M.D., Ph.D. | Urbana | IL | Neurology | 9/19/2006 |
| David G. Davila, M.D. | Little Rock | AR | Pulmonology | 4/19/1993 |
| David A. Davis, M.D. | Fayetteville | AR | Neurology | 4/17/2000 |
| Lauren L. Davis, M.D. | Covington | LA | Pulmonology | 4/11/1999 |
| Michael Steven Davis, M.D. | Manteca | CA | Pulmonology | 3/22/2005 |
| James Williams Davis, M.D. | Cookeville | TN | Pulmonology | 9/20/2005 |
| Robert P. Dawkins, Ph.D. | Mobile | AL | Psychology | 4/18/1988 |
| Yousuf Aiyub Dawoodjee, M.D. | Virginia Beach | VA | Pulmonology | 3/22/2005 |
| William T. Dawson, Jr., M.D. | Charleston | SC | Pulmonology | 4/24/1989 |
| Juan M. D'Brot, M.D. | Charleston | WV | Pulmonology | 4/23/2001 |
| O'Neill F. D'Cruz, M.D. | Chapel Hill | NC | Neurology | 4/25/1994 |
| Luis Ignacio De La Cruz, M.D. | Spartanburg | SC | Pulmonology | 9/19/2006 |
| Angel Efren De La Cruz M.D. | Corona | NY | Pulmonology | 3/22/2005 |
| Augustin De La Pena, Ph.D. | Austin | TX | Psychology | 4/24/1989 |
| Massimo De Marchis, Psy.D. | Dayton | OH | Psychology | 3/25/1983 |
| Jose Zamora De Ocampo, M.D. | Greenville | SC | Neurology | 4/8/2002 |
| Bertrand R. De Silva, M.D. | Pulmonology | 4/24/1995 | ||
| E. Chandler Deal, Jr., M.D. | Bowling Green | KY | Pulmonology | 4/24/1995 |
| G. A. DeAndrea, M.D. | Seattle | WA | Neurology | 4/23/1990 |
| Alan Joseph DeAngelo, M.D. | Evans | GA | Pulmonology | 3/22/2005 |
| Thomas W. DeBeck, M.D. | Wilmington | NC | Neurology | 6/16/1986 |
| John R. Debus, M.D. | Dallas | TX | Psychiatry | 4/14/2003 |
| John DeCerce, M.D. | Jacksonville | FL | Neurology | 4/23/2001 |
| Barry J. Decker, M.D. | Orlando | FL | Pulmonology | 4/19/1993 |
| Michael John Decker, Ph.D. | Roswell | GA | Anatomy | 9/19/2006 |
| David Lars Dedrick, M.D. | Bend | OR | Pulmonology | 4/15/2003 |
| Daniel C. Deetz, M.D. | La Crosse | WI | Pulmonology | 4/14/2003 |
| Steven E. Dekich, M.D. | Opelika | AL | Pulmonology | 4/11/1999 |
| Andrea J. DeLeo, D.O. | Chicago | IL | Neurology | 3/22/2005 |
| Deogenes Garcia Deleon, M.D. | Goshen | NY | Pulmonology | 9/19/2006 |
| Humberto Delgado, M.D. | Leesburg | FL | Pulmonology | 4/6/1998 |
| Lawton Oswald DeLisser, M.D. | Lansdale | PA | Family Practice | 9/20/2005 |
| John J. Della Rosa, Jr., M.D. | Wilkes-Barre | PA | Neurology | 4/29/1991 |
| John DellaBadia, Jr., M.D. | Bossier City | LA | Neurology | 4/14/2003 |
| Maureen A. Delphia, M.D. | Columbus | OH | Neurology | 4/11/1999 |
| Debra J. DeLuca, M.D. | Trenton | NJ | Neurology | 4/29/1991 |
| William C. Dement, M.D., Ph.D. | Palo Alto | CA | Sleep Disorders Medicine | 4/5/1978 |
| Mehmet Cuneyt Demirozu, M.D. | Hawthorne | CA | Internal Medicine | 4/22/1996 |
| John M. Dengler, M.D. | Johnson City | TN | Neurology | 4/15/2003 |
| Mohan C. Deochand, M.D. | Sanford | NC | Neurology | 4/23/2001 |
| William J. DePaso, M.D. | Seattle | WA | Pulmonology | 4/11/1999 |
| Marcel J. Deray, M.D. | Miami | FL | Neurology | 6/16/1986 |
| Sarkis S. Derderian, D.O. | Columbia | SC | Pulmonology | 4/29/1991 |
| Sabri Derman, M.D. | San Antonio | TX | Psychology | 7/1/1980 |
| Tarek Ahmad Adnan Dernaika, M.D. | Oklahoma City | OK | Internal Medicine | 9/19/2006 |
| Aysin Dervent, M.D. | Istanbul | Turkey | Neurology | 10/30/1981 |
| Sunil S. Desai, M.D. | Westmont | IL | Pulmonology | 4/23/2001 |
| Avinash M. Desai, M.D. | Troy | MI | Pulmonology | 4/16/2003 |
| Abhijit G. Deshpande, M.D. | Yakima | WA | Internal Medicine | 4/17/2000 |
| Shari M. DeSilva, M.D. | Fort Wayne | IN | Neurology | 4/23/2001 |
| Philip Martin DeTrana, M.D. | Sheboygan | WI | Pulmonology | 4/8/2002 |
| Prasad Venkatadurga Devabhaktuni, M.D. | Fairmont | WV | Pulmonology | 4/15/2003 |
| Srinivasan Devanathan, M.D. | Fort Wayne | IN | Pulmonology | 3/22/2005 |
| Thomas G. Devlin, M.D., Ph.D. | Chattanooga | TN | Neurology | 4/11/1999 |
| Preeti A. Devnani, M.D. | Munster | IN | Neurology | 3/23/2005 |
| Naresh A. Dewan, M.D. | Omaha | NE | Pulmonology | 4/16/2003 |
| Donn D. Dexter, Jr., M.D. | Eau Claire | WI | Neurology | 4/6/1992 |
| Todd C. Dextradeur, M.D. | Denver | CO | Internal Medicine | 4/8/2002 |
| Gerald Clarence Dey, M.D. | Vestavia Hills | AL | Pulmonology | 3/24/2004 |
| Sandeep Dhand, M.D. | Abington | PA | Pulmonology | 4/8/2002 |
| Vandana Dhawan, M.B., B.S. | Chesapeake | VA | Internal Medicine | 9/19/2006 |
| Samjot Singh Dhillon, M.D. | Buffalo | NY | Pulmonology | 3/24/2004 |
| Davinder Pal Singh Dhillon, M.B., B.S. | Yuba City | CA | Pulmonology | 9/20/2005 |
| Anil Kumar Dhuna, M.D. | Burlington | IA | Neurology | 4/14/2003 |
| B. Franklin Diamond, M.D. | Willow Grove | PA | Neurology | 4/19/1993 |
| Gonzalo A. Diaz, M.D. | El Paso | TX | Pulmonology | 4/23/1990 |
| Temistocles Diaz Strunz, M.D. | Republic of Panama | Panama | Pulmonology | 4/25/1994 |
| Maroun T. Dick, M.D. | Germantown | TN | Neurology | 4/15/2003 |
| Michael J. Dickel, Ph.D. | Anaheim | CA | Exp Psych | 4/6/1992 |
| Jeffrey Wayne Dickerson, M.D. | Maysville | KY | Pulmonology | 3/24/2004 |
| Quentin Stokes Dickins, M.D. | Ottumwa | IA | Neurology | 6/16/1986 |
| Shirley L. Dickinson, M.D. | Montrey | CA | Family Medicine | 4/14/2003 |
| Gerard J. Diefes, M.D. | Philadelphia | PA | Pulmonology | 4/8/2002 |
| David G. Dienhart, M.D. | Murray | UT | Pulmonology | 4/23/2001 |
| Bhupesh H. Dihenia,M.D. | Lubbock | TX | Neurology | 4/11/1999 |
| Yahya M. Dikengil, M.D. | Montclair | NJ | Pulmonology | 4/23/2001 |
| Mark S. Dilger, MD | Denver | CO | Psychiatry | 4/28/1997 |
| Thomas Arthur Dillard, M.D. | Martinez | GA | Pulmonology | 3/22/2005 |
| Daniel Forde Dilling, M.D. | Chicago | IL | Pulmonology | 9/20/2005 |
| Anthony DiMarco, M.D. | Solon | OH | Pulmonology | 4/14/2003 |
| Donald G. Dimcheff, M.D. | Harrison Township | MI | Pulmonology | 4/22/1996 |
| Huseyin Erhan Dincer, M.D. | Las Vegas | NV | Pulmonology | 9/20/2005 |
| John Francis Dineen, M.D. | Lexington | KY | Pulmonology | 3/24/2004 |
| Hendrik Dinkla, M.D. | DeLand | FL | Neurology | 4/28/1997 |
| Dudley S. Dinner, M.D. | Cleveland | OH | Neurology | 3/4/1982 |
| Keith R. Dixon, M.D. | Teaneck | NJ | Internal Medicine | 9/20/2005 |
| Russell R. Dodge, M.D. | Tucson | AZ | Pulmonology | 4/6/1998 |
| Robert C. Doekel, Jr., M.D. | Birmingham | AL | Pulmonology | 6/16/1986 |
| Clinton Harold Doerr, M.D. | Houston | TX | Pulmonology | 3/24/2004 |
| John W. Doggett, M.D. | Albuquerque | NM | Internal Medicine | 4/6/1998 |
| Karl Doghramji, M.D. | Philadelphia | PA | Psychiatry | 3/30/1985 |
| Carmen Dohmeier, M.D. | Greensboro | NC | Neurology | 9/20/2005 |
| Maria Fernando Dongas, M.D. | Nashville | TN | Neurology | 9/19/2006 |
| Kwabena A. Donkor, M.D. | Farmville | VA | Pulmonology | 3/24/2004 |
| William Nelson Donovan, M.D. | Madison | WI | Pulmonology | 9/20/2005 |
| Kofi Adeleke Doonquah, M.D. | Danville | VA | Neurology | 4/17/2003 |
| Cynthia M. Dorsey, Ph.D. | Belmont | MA | Clinical Psychology | 4/29/1991 |
| David Allen Dorsey, M.D. | El Paso | TX | Pulmonology | 3/24/2004 |
| Clyde J. Dos Santos, M.D. | Anaheim | CA | Pulmonology | 4/22/1996 |
| Razak A. Dosani, M.D. | Fort Myers | FL | Pulmonology | 4/24/1989 |
| Douglas Wayne Dothager, M.D. | Swansea | IL | Pulmonology | 4/8/2002 |
| Marco Claudio Dotti, M.D. | Stevens Point | WI | Neurology | 3/24/2004 |
| Alan B. Douglass, M.D. | Ann Arbor | MI | Psychiatry | 3/30/1985 |
| Bassam Mouhin Doujaiji, M.D. | Saudi Aramco | Dhahran | Pulmonology | 4/17/2003 |
| William T. Dowdell, M.D. | Marietta | GA | Pulmonology | 4/22/1996 |
| Gordon W. Dowds, M.D. | West Hills | CA | Pulmonology | 4/6/1992 |
| Ralph Downey, III, Ph.D. | Loma Linda | CA | Health Psychology | 4/23/1990 |
| Edward T. Downing, M.D. | Syracuse | NY | Pulmonology | 4/29/1991 |
| Horia Draghiciu, M.D. | Evansville | IN | Pulmonology | 3/23/2005 |
| Christopher Lawrence Drake, Ph.D. | Framington Hills | MI | Clinical Psychology | 4/14/2003 |
| Azmi Draw, M.D. | Louisville | KY | Pulmonology | 4/17/2003 |
| Lee P. Dresser, M.D. | Newark | DE | Clinical Neurophysiology | 4/11/1999 |
| Helen S. Driver, Ph.D. | Kingston | ON | Physiology | 4/8/2002 |
| Liphard O. D'Souza, M.D. | Tulsa | OK | Neurology | 4/11/1999 |
| Diogenes Francisco Duarte, M.D. | Pembroke Pines | FL | Pulmonology | 3/23/2005 |
| Tina Maureen Dudney, M.D. | Knoxville | TN | Pulmonology | 9/19/2006 |
| Guy M. Dugan, M.D. | Pulmonology | 4/24/1995 | ||
| Sheila E. Duggan, D.O. | Pulmonology | 9/20/2005 | ||
| M. Eyad Dughly, M.D. | Millersville | MD | Neurology | 4/24/1995 |
| Lee M. Duke, M.D. | Lititz | PA | Pulmonology | 4/6/1998 |
| Susan P. Dunning, M.D. | Iceland | Iceland | Pulmonology | 4/17/2000 |
| Stephen P. Duntley, M.D. | St. Louis | MO | Neurology | 4/22/1996 |
| Gregory P. DuPont, M.D. | West Valley | UT | Pulmonology | 4/6/1998 |
| Jeffrey S. Durmer, M.D. | Bryn Mawr | PA | Neurology | 4/15/2003 |
| Jameel Farrukh Durrani, M.B., B.S. | Montoursville | PA | Pulmonology | 9/20/2005 |
| Mahmood Omran Dweik, M.B., B.S. | Friendswood | TX | Pulmonology | 9/19/2006 |
| Mark Eric Dyken, M.D. | Iowa City | IA | Neurology | 4/23/1990 |
| Brian J. Dykstra, M.D. | Kalamazoo | MI | Pulmonology | 4/8/2002 |
| Jane V. Dyonzak, Ph.D. | Glenview | IL | Psychology | 4/28/1997 |
| Samuel Kwami Dzodzomenyo, M.D. | Westerville | OH | Neurology | 9/20/2005 |
