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 |
| Helmut Haas, M.D. | Portland | OR | Pulmonology | 4/6/1992 |
| Jamie Thomas Haas, M.D. | Washington | MO | Neurology | 9/19/2006 |
| Alfred M. Habel, M.D. | Kenosha | WI | Pulmonology | 4/11/1999 |
| Alan David Haber, M.D. | Merion Station | PA | Pulmonology | 4/8/2002 |
| Paul B. Haberman, M.D. | Santa Monica | CA | Pulmonology | 4/24/1995 |
| Isam Hasan Habib, M.B., B.S. | Fond Du Lac | WI | Pulmonology | 3/23/2005 |
| Antoine George Habre, M.D. | Pulmonology | 9/20/2005 | ||
| Basem Haddad, M.D. | Westlake | OH | Internal Medicine | 9/20/2005 |
| Hany W. Haddad, M.D. | Indianapolis | IN | Pulmonology | 4/24/1989 |
| Martha H. Hagaman, M.D. | Pulmonology | 4/17/2000 | ||
| Daniel Carroll Hagan, D.O. | Reading | MA | Pulmonology | 9/20/2005 |
| Jeffrey C. Hagedorn, M.D. | Columbus | IN | Neurology | 4/19/1993 |
| Timothy Lee Hagen, D.O. | Canton | OH | Neurology | 3/22/2005 |
| Peter Young-min Hahn, M.D. | Rochester | MN | Pulmonology | 3/23/2005 |
| Rizan Hajal, M.D. | Sioux Falls | SD | Pulmonology | 4/15/2003 |
| Istvan Antal Hajduk, M.D. | Pittsburgh | PA | Pulmonology | 3/25/2004 |
| Ann C. Halbower, M.D. | Aurora | CO | Pulmonology | 4/17/2000 |
| James Darvin Hales, D.O. | New Iberia | LA | Pulmonology | 4/8/2002 |
| Jonathan Jacob Halford, M.D. | Charleston | SC | Neurology | 3/22/2005 |
| Charles Scott Hall, M.D. | Scottsdale | AZ | Pulmonology | 3/24/2004 |
| Carl P. Hallenborg, M.D. | Helena | MT | Pulmonology | 3/22/2005 |
| Gustav W. Hallin, M.D. | Durango | CO | Pulmonology | 4/17/2000 |
| George W. Hambrook, M.D. | Glendale | WI | Neurology | 4/18/1988 |
| M. Abdulgany Hamedeh, M.D. | Oak Lawn | IL | Pulmonology | 4/25/1994 |
| Albert R. Hamel, Ph.D. | Providence | RI | Psychology | 3/31/1984 |
| Pamela E. Hamilton-Stubbs, M.D. | Richmond | VA | Neurology/Pediatrics | 4/11/1999 |
| Carolyn K. Hamm, Ph.D. | Silver Spring | MD | Psychology | 4/29/1991 |
| Jeffrey Ross Hammersley, M.D. | Perrysburg | OH | Pulmonology | 3/22/2005 |
| William R. Hammond, M.D. | Charlottesville | VA | Pulmonology | 3/22/2005 |
| Richard J. Hammond, M.D. | Twin Falls | ID | Neurology | 4/23/2001 |
| Gregory Dean Hammond, M.D. | North Salt Lake City | UT | Pulmonology | 9/20/2005 |
| Albert P. Hamner, Jr., M.D. | Richland | WA | Pulmonology | 4/28/1997 |
| Bert A. Hampton, M.D. | Knoxville | TN | Pulmonology | 6/26/1987 |
| Nabeel Yousef Hamzeh, M.D. | Pearland | TX | Pulmonology | 9/20/2005 |
| Steve K. Han, M.D. | Pulmonology | 9/20/2005 | ||
| Paul S. Han, M.D. | Englewood Cliffs | NJ | Pulmonology | 3/22/2005 |
| Stephen H. Hand, M.D. | Anderson | SC | Pulmonology | 4/22/1996 |
| Tabassum M. Hanif, M.D. | Basuing Ridge | NJ | Pulmonology | 3/22/2005 |
| Nadeem Hanif, M.D. | Rockford | IL | Pulmonology | 3/23/2005 |
| Patrick J. Hanly, M.D. | Toronto | ON | Pulmonology | 4/28/1997 |
| Holly Christine Hannon, M.D. | Bonita Springs | FL | Neurology | 4/17/2003 |
| James R. Hansbrough, M.D. | Bowling Green | KY | Pulmonology | 4/6/1998 |
| Mark R. Hansen, M.D. | Rochester | MN | Psychiatry | 4/23/1990 |
| Sajid Azeem Haque, M.D. | Houston | TX | Internal Medicine | 3/22/2005 |
| K. Alexander Haraldsted, M.D. | Allentown | PA | Pulmonology | 4/11/1999 |
| Ralph V. Harder, M.D. | Auburn | ME | Pulmonology | 4/11/1999 |
| Richard D. Hardie, M.D. | Sioux Falls | SD | Pulmonology | 4/24/1989 |
| Kimberly A. Hardin, M.D. | Citrus Heights | CA | Pulmonology | 4/14/2003 |
| Victor H. Harding, M.D. | Orlando | FL | Internal Medicine | 4/16/2003 |
| Deborah F. Harding, M.D. | Windermere | FL | Internal Medicine | 4/16/2003 |
| Susan M. Harding, M.D. | Birmingham | AL | Pulmonology | 4/22/1996 |
| Patrick Neal Harding, M.D. | Williamsburg | VA | Neurology | 3/24/2004 |
| Lara Lynelle Hardman, M.D. | Salt Lake City | UT | Pulmonology | 4/8/2002 |
| Stephen C. Hardy, M.D., Ph.D. | Charlotte | NC | Neurology | 4/28/1997 |
| Kevin Rene Hargrave, M.D. | Lafayette | LA | Neurology | 4/17/2003 |
| John Joseph Harrington, M.D. | Omaha | NE | Internal Medicine | 9/20/2005 |
| Dixie Lee Harris, M.D. | American Fork | UT | Pulmonology | 4/8/2002 |
| Krisztina Harsanyi-Jilling, M.D. | Wilmette | IL | Neurology | 3/23/2005 |
| John R. Harsh, Ph.D. | Hattiesburg | MS | Psychology | 4/28/1997 |
| Robert W. Hart, M.D. | Elk Grove Village | IL | Pulmonology | 4/29/1991 |
| Carolyn Elizabeth Hart, M.D. | Huntersville | NC | Neurology | 3/22/2005 |
| William Takashi Hart, M.D. | Aptos | CA | Pulmonology | 9/19/2006 |
| Paul Hartman, Ph.D. | Exp Psych | 4/24/1989 | ||
| Ernest Hartmann, M.D. | Newton | MA | Psychiatry | 10/30/1981 |
| Kristyna M. Hartse, Ph.D. | El Paso | TX | Psychology | 10/25/1979 |
| Geoffrey B. Hartwig, M.D. | Hattiesburg | MS | Neurology | 4/18/1988 |
| Jay H. Harvey, D.O. | Dallas | TX | Neurology | 4/22/1996 |
| William Lawrence Franklin Harvey, M.D. | Indianapolis | IN | Internal Medicine | 3/25/2004 |
| Nuzhat A. Hasan, M.D. | Louisville | KY | Pulmonology | 4/23/2001 |
| Shabih Ul Hasan | McLean | VA | Neurology | 9/20/2005 |
| Bassam Hashem, M.D. | Roseburg | OR | Pulmonology | 9/20/2005 |
| Mohammed Khuram Hasnain, M.D. | Avon | IN | Neurology | 3/25/2004 |
| Hesham A. Hassaballa, M.D. | Bloomingdale | IL | Pulmonology | 9/20/2005 |
| Zubair Hassan, M.D. | Wichita | KS | Pulmonology | 9/20/2005 |
| Babar N. Hassan, M.D. | Martinsville | VA | Pulmonology | 4/17/2000 |
| John Joseph Hassett, M.D. | Malverne | NY | Internal Medicine | 3/22/2005 |
| Vasantha Kumar Srinivasa Hathwar, M.B.,B.S. | Virginia Beach | VA | Pulmonology | 4/17/2003 |
| Peter Hauri, Ph.D. | Rochester | MN | Psychology | 10/3/1980 |
| Raed J. Hawa, M.D. | Toronto | ON | Psychiatry | 4/17/2003 |
| Jeffrey W. Hawkins, M.D. | Birmingham | AL | Pulmonology | 4/17/2000 |
| Rollin James Hawley, M.D. | Christiansburg | VA | Internal Medicine | 4/17/2003 |
| John F. Hawley, D.O. | Neurology | 4/17/2003 | ||
| Roza Hayduk, M.D. | La Jolla | CA | Neurology | 6/26/1987 |
| Don Hayes, Jr., M.D. | Lexington | KY | Internal Medicine, Pediatrics | 9/20/2005 |
| J. Brevard Haynes, Jr., M.D. | Nashville | TN | Pulmonology | 3/30/1985 |
| Ralph Lewis Haynes, M.D. | Atlanta | GA | Pulmonology | 3/22/2005 |
| Clark J. Headrick, D.O. | Flint | MI | Pulmonology | 4/17/2000 |
| Marketa Hecht, M.D. | Palo Alto | CA | Internal Medicine | 3/25/2004 |
| Korgi V. Hegde, M.D. | St. Louis | MO | Pulmonology | 4/6/1998 |
| Charles N. Held, M.D. | Gardnerville | NV | Pulmonology | 4/18/1988 |
| Carla J. Hellekson, M.D. | Seattle | WA | Psychiatry | 4/5/1978 |
| Ruth Ann Henchey, M.D. | Pensacola | FL | Neurology | 3/24/2004 |
| James H. Henderson, II, M.D. | Lackland AFB | TX | Pulmonology | 4/25/1994 |
| Mark Vining Hendricks, M.D. | Macon | GA | Pulmonology | 3/25/2004 |
| Wayne A. Hening, M.D., Ph.D. | Baltimore | MD | Neurology | 4/24/1989 |
| Kathe G. Henke, Ph.D. | Richmond | VA | Pulmonology | 4/25/1994 |
| Joseph Q. Henkle, M.D. | Springfield | IL | Pulmonology | 4/24/1989 |
| Delmer W. Henninger, Jr., M.D. | Murrieta | CA | Pulmonology | 4/6/1998 |
| Steven J. Henriksen, Ph.D. | La Jolla | CA | Psychology, Sleep Disorders Medicine | 3/30/1985 |
| Daniel W. Henry, M.D. | Evansville | IN | Pulmonology | 4/17/2000 |
| Joseph Eric Henry, M.D. | Kansas City | MO | Pulmonology | 3/22/2005 |
| David J. Henson, M.D. | Cookeville | TN | Pulmonology | 4/8/2002 |
| Nihal Herath, M.D. | Marquette | MI | Neurology | 3/25/2004 |
| James J. Herdegen, M.D. | Chicago | IL | Pulmonology | 4/28/1997 |
| John H. Herman, Ph.D. | Dallas | TX | Psychology | 7/1/1980 |
| Richard Craig Hert, M.D. | Seattle | WA | Pulmonology | 4/8/2002 |
| Gila Hertz, Ph.D. | Huntington | NY | Psychology | 4/24/1989 |
| William S. Herzberg, M.D. | Vancouver | WA | Neurology | 4/28/1997 |
| John P. Hey, M.D. | Greenwood | MS | Family Medicine, Gerontology | 4/23/2001 |
| Stephen J. Heyman, M.D. | Nashville | TN | Pulmonology | 4/28/1997 |
| Rock A. Heyman, M.D. | Pittsburgh | PA | Neurology | 4/25/1994 |
| Gregory A. Hicklin, M.D. | Urbandale | IA | Pulmonology | 4/11/1999 |
| Timothy C. Hiebert, M.D. | Pascagoula | MS | Pulmonology | 4/6/1998 |
| David Michael Hiestand, M.D., Ph.D. | Lexington | KY | Pediatrics, Pulmonology | 9/19/2006 |
| David A. Higgins, B.Sc., M.B. | Dundas | ON | Internal Medicine | 3/23/2005 |
| Thomas G. Higgins, M.D. | Knoxville | TN | Neurology | 6/26/1987 |
| Nancy C. Higgins, M.D. | Absecon | NJ | Pulmonology | 4/6/1998 |
| Janet Hilbert Howard-Flanders, M.D. | New Haven | CT | Pulmonology | 4/11/1999 |
| Dennis L. Hill, M.D. | Salisbury | NC | Neurology | 3/30/1985 |
| Robert C. Hinkle, M.D. | Racine | WI | Pulmonology | 4/11/1999 |
| Max Hirshkowitz, Ph.D. | Houston | TX | Psychology | 4/23/1990 |
| Alice Churchill Hoagland, Ph.D. | Pittsford | NY | Clinical Psychology | 3/25/2004 |
| Timothy F. Hoban, M.D. | Ann Arbor | MI | Pediatric Neurology | 4/6/1998 |
| Thomas E. Hobbins, M.D. | Pulmonology | 4/23/1990 | ||
| Eric Hoddes, Ph.D. | Boulder | CO | Psychology | 7/1/1980 |
| Timothy J. Hoelscher, Ph.D. | Murfreesboro | TN | Psychology | 6/26/1987 |
| Darren Seth Hoffberger, D.O. | Parkland | FL | Pulmonology | 9/20/2005 |
| Dennis Hoffman, M.D. | Glencoe | IL | Pulmonology | 4/8/2002 |
| Richard Alan Hoffman, M.D. | Alexandria | VA | Pulmonology | 3/23/2005 |
| Marc Eugene Hofmann, M.D. | Germantown | TN | Pulmonology | 9/20/2005 |
| William E. Hogancamp, M.D. | Paducah | KY | Neurology | 4/11/1999 |
| Edsel P. Holden, M.D. | Florence | AL | Pulmonology | 3/23/2005 |
| Rolf H. O. Holle, M.D. | Everett | WA | Pulmonology | 4/23/2001 |
| Harry R. Holliday, M.D. | Tulepo | MS | Pulmonology | 9/19/2006 |
| Gregory Alan Holt, Ph.D. | Tallahassee | FL | Physiology | 9/20/2005 |
| Stuart G. Holtby, M.D. | Thunder Bay | ON | Pulmonology | 4/28/1997 |
| Noel Holtz, M.D. | Marietta | GA | Neurology | 4/6/1998 |
| Arturo Homma, M.D. | San Antonio | TX | Pulmonology | 3/23/2005 |
| Song Min Hong, M.D. | Richmond | IN | Pulmonology | 9/19/2006 |
| Robert G. Hooper, M.D. | Scottsdale | AZ | Pulmonology | 4/23/2001 |
| Harvey A. J. Hopkins, M.D. | Omaha | NE | Pulmonology | 4/6/1998 |
| Todd K. Horiuchi, M.D. | Sarasota | FL | Pulmonology | 4/17/2003 |
| Jack Wei-Sen Horng, M.D. | West Nyack | NY | Internal Medicine | 4/23/2001 |
| Sandra Horowitz, M.D. | Framingham | MA | Neurology | 3/30/1985 |
| Frank O. Horton, III, M.D. | Toledo | OH | Pulmonology | 6/26/1987 |
| Abdulkadir Ahmed Hourani, M.D. | Yuma | AZ | Pulmonology | 3/22/2005 |
| Michael P. Houston, M.D. | Foley | AL | Pulmonology | 4/28/1997 |
| George F. Howard, III, M.D. | Springfield | MA | Neurology | 3/30/1985 |
| Donald S. Howard, M.D. | Pulmonology | 4/11/1999 | ||
| Scott W. Hoyer, M.D. | West Lafayette | IN | Neurology | 4/6/1992 |
| Francisco F. Hoyos, M.D. | Washington | DC | Pulmonology | 4/23/2001 |
| Timothy Hsu, M.D. | New York | NY | Psychiatry | 4/29/1991 |
| James S.J. Hsu, M.D. | Henderson | NV | Pulmonology | 9/20/2005 |
| Aung Kyaw Htoo, M.B., B.S. | Bakersfield | CA | Pulmonology | 3/23/2005 |
| Chin-Wei Huang, M.D. | Melrose | MA | Pulmonology | 3/22/2005 |
| David Y. Huang, M.D. | Tallahassee | FL | Pulmonology | 4/11/1999 |
| Kevin M. Huban, Psy.D. | Dayton | OH | Psychology | 4/23/1990 |
| Theodore J. Hubley, M.D. | Milwaukee | WI | Pulmonology | 4/11/1999 |
| Robert L. Huck, M.D. | Olympia | WA | Pulmonology | 4/14/2003 |
| David W. Hudgel, M.D. | Detroit | MI | Pulmonology | 4/24/1995 |
| James I. Hudson, M.D. | Belmont | MA | Psychiatry | 4/29/1991 |
| John D. Hudson, M.D. | Austin | TX | Neurology | 4/11/1999 |
| Christopher A. Hughes, M.D. | Sioux City | IA | Neurology | 4/6/1998 |
| John S. Hull, Ph.D. | Meridian | MS | Clinical Psychology | 4/22/1996 |
| Steven G. Hull, M.D. | Leawood | KS | Pulmonology | 4/8/2002 |
| Frank Peter Hull, M.D. | New York | NY | Pulmonology | 4/17/2003 |
| C. Keith Hulse, Ph.D. | Knoxville | TN | Clinical Psychology | 4/22/1996 |
| Naseer Ahmad Humayun, M.D. | Dalton | GA | Pulmonology | 4/17/2003 |
| Fred D. Hunker, M.D. | Montgomery | AL | Pulmonology | 4/11/1999 |
| James H. Hunter, M.D. | Mobile | AL | Pulmonology | 4/11/1999 |
| Marque A. Hunter, M.D. | Tomball | TX | Pulmonology | 4/8/2002 |
| Kevin Edward Hunter, M.D. | Northfield | NJ | Neurology | 4/8/2002 |
| Brian T. Hurley, M.D. | Sioux Falls | SD | Pulmonology | 4/24/1989 |
| Nora Constance Hurt, M.D. | Smyrna | GA | Pulmonology | 9/20/2005 |
| Thomas D. Hurwitz, M.D. | Minneapolis | MN | Psychiatry | 6/26/1987 |
| Aatif M. Husain, M.D. | Durham | NC | Neurology | 4/6/1998 |
| Kishwar Husain, M.B.,B.S. | St. Augustine Beach | FL | Pulmonology | 4/17/2003 |
| Ahmad Husari, M.D. | Weston | WV | Critical Care | 4/11/1999 |
| Kimberly Nixon Hutchison, M.D. | Nashville | TN | Neurology | 9/19/2006 |
| Deborah AnneMarie Hutter, M.D. | Fort Lee | NJ | Pulmonology | 9/20/2005 |
| Eva H. Hu-Whittemore, M.D. | Cleveland | OH | Neurology | 4/6/1992 |
| Chorng-Jen J. Hwang, M.D. | Cleveland Heights | OH | Pulmonology | 4/17/2000 |
