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 |
| Mark T. Gabr, M.D. | Salem | OR | Neurology | 4/24/1989 |
| Kevin Clifford Gaffney, M.D. | The Woodlands | TX | Neurology | 4/8/2002 |
| James M. Gaither, M.D. | Pulmonology | 4/6/1992 | ||
| Robert C. Galbraith, M.D. | Little Rock | AR | Neurology | 6/16/1986 |
| Joanna E. Galezowska, M.D. | Milwaukee | WI | Neurology | 4/17/2000 |
| John P. Galgon, M.D. | Allentown | PA | Pulmonology | 4/29/1991 |
| Ralph C. Gallo, M.D. | Wynnewood | PA | Pediatrics | 4/8/2002 |
| Charlene Edie Gamaldo, M.D. | Clarksville | MD | Neurology | 9/19/2006 |
| John P. Gambin, M.D. | Eureka | CA | Neurology | 4/28/1997 |
| Michael N. Gamiao, M.D. | Livonia | MI | Pulmonology | 4/6/1998 |
| Kalpesh Dharamshi Ganatra, M.D. | Hastings | NE | Pulmonology | 9/20/2005 |
| Dharmesh V. Gandhi, M.D. | Centerville | OH | Pulmonology | 4/23/2001 |
| Ravinder Gandhi, M.D. | Wyandotte | MI | Pulmonology | 3/22/2005 |
| Arunkumar Ganesa Sivasubramaniam, M.B.,B.S. | Mesa | AZ | Clinical Neurophysiology | 3/24/2004 |
| Palvannanathan Ganesan, M.D. | Omaha | NE | Pulmonology | 4/15/2003 |
| Srinivas S. Ganji, M.D. | Covington | LA | Neurology | 4/6/1998 |
| Darren P. Gannuch, M.D. | Huntsville | AL | Psychiatry | 4/14/2003 |
| James Gapinski, M.D. | Green Bay | WI | Internal Medicine | 3/24/2004 |
| John J. Garcia, M.D. | St. Paul | MN | Pediatrics | 4/11/1999 |
| Elisa B. Garcia, M.D. | Elizabethtown | KY | Neurology | 9/19/2006 |
| Rakesh K. Garg, M.D. | Newton | NJ | Pulmonology | 4/28/1997 |
| Vipin Garg, M.D. | Elizabeth | NJ | Pulmonology | 3/24/2004 |
| Prasad Subramanya Garimella, M.D. | Duluth | GA | Pulmonology | 3/24/2004 |
| Erik Garpestad, M.D. | Boston | MA | Pulmonology | 4/11/1999 |
| Kevin C. Garrett, M.D. | Appleton | WI | Pulmonology | 4/23/1990 |
| Andrew Garrow, M.D. | Brooklyn | NY | Pulmonology | 3/24/2004 |
| Mark Douglas Garwood, M.D. | Canton | MI | neurology | 9/19/2006 |
| Andrew P. Gasecki, M.D. | Sandy | UT | Neurology | 3/24/2004 |
| Dominic Bruno Gault, M.D. | Salt Lake City | UT | Pediatrics | 3/23/2005 |
| Peter C. Gay, M.D. | Rochester | MN | Pulmonology | 4/28/1997 |
| Edgar J. Geigel, M.D. | Taveres | FL | Pulmonology | 4/23/2001 |
| Alexander Boris Gelfer, M.D. | Willliamsville | NY | Pulmonology | 4/8/2002 |
| Glenn Genovese, M.D. | Highland Village | TX | Pulmonology | 4/17/2000 |
| Charles F. P. George, M.D. | London | ON | Pulmonology | 4/23/1990 |
| Liziamma George, M.D. | Syosset | NY | Pulmonology | 4/22/1996 |
| Jack Geoula, M.D. | Encino | CA | Internal Medicine | 9/19/2006 |
| Chandra M. Gera, M.D. | Okemos | MI | Pulmonology | 4/17/2000 |
| Anand Ashok Gersappe, M.B., B.S. | Lancaster | NY | Neurology | 9/20/2005 |
| Joanne E. Getsy, M.D. | Philadelphia | PA | Pulmonology | 4/29/1991 |
| James D. Geyer, M.D. | Tuscaloosa | AL | Neurology | 4/23/2001 |
| Mohammed B. Ghabra, M.D. | Westmont | IL | Neurology | 3/24/2004 |
| Shekhar Anant Ghamande, M.D. | Morgantown | WV | Pulmonology | 4/14/2003 |
| Qais Ghanem, M.D. | Ottawa | ON | Neurology | 4/24/1995 |
| Ammar Ghanem, M.D. | Portsmouth | OH | Pulmonology | 9/19/2006 |
| Amaranath Ghanta, M.D. | Odessa | TX | Pulmonology | 3/24/2004 |
| Joseph M. Ghassibi, M.D. | New York | NY | Pulmonology | 4/19/1993 |
| Raghvendra Vithalrao Ghuge, M.D. | Henderson | TX | Internal Medicine | 9/20/2005 |
| Harbinder S. Ghulldu, M.D. | Orlando | FL | Internal Medicine | 4/11/1999 |
| Thomas Giancarlo, D.O. | Detroit | MI | Neurology | 4/23/1990 |
| Guillermo Jose Giangreco, M.D. | Linthicum | MD | Pulmonology | 9/19/2006 |
| Eleni Giannouli, M.D. | Winnepeg | MB | Internal Medicine | 4/17/2003 |
| John Willard Gibbs, III, M.D., Ph.D. | Winterville | NC | Neurology | 3/22/2005 |
| Bhakti Deepak Gidvani, M.D. | Houston | TX | Pulmonology | 9/20/2005 |
| Glenn M. Giessel, M.D. | Richmond | VA | Pulmonology | 4/29/1991 |
| Pierre Giglio, M.D. | Omaha | NE | Neurology | 3/22/2005 |
| Enrique Gil, M.D. | Redlands | CA | Pulmonology | 4/17/2000 |
| Russell S. Gilbert, M.D. | Sun City | AZ | Psychiatry | 4/6/1998 |
| Tricia T. Gilbert, M.D. | Holmdel | NJ | Pulmonology | 3/24/2004 |
| Harjinder Singh Gill, Ph.D. | Ajax | ON | Biological Sciences | 4/6/1998 |
| Ajaipal S. Gill, M.D. | Marysville | CA | Pulmonology | 4/17/2000 |
| Gurmit S. Gill, M.D. | Garden City | NY | Pulmonology | 4/28/1997 |
| Kuljeet K Gill, M.D. | Naperville | IL | Neurology | 9/20/2005 |
| Harmeet S. Gill, M.B.,B.S. | Mesa | AZ | Pulmonology | 3/24/2004 |
| Geoffrey Scott Gilmartin, M.D. | Chestnut Hill | MA | Pulmonology | 9/20/2005 |
| Robin L. Gilmore, M.D. | Gainesville | FL | Neurology | 4/24/1989 |
| Vincent Joseph Gimino, M.D. | Edina | MN | Pulmonology | 3/22/2005 |
| Jeannine Louise Gingras, M.D. | Rock Hill | SC | Pediatrics | 4/8/2002 |
| Nilgun Giray, M.D. | Houston | TX | Psychiatry | 4/8/2002 |
| Mirle R. Girish, M.D. | Overland Park | KS | Pulmonology | 4/23/2001 |
| Jeffrey S. Gitt, D.O. | Scottsdale | AZ | Neurology | 4/24/1989 |
| Steven B. Gittler, M.D. | Hollywood | FL | Pulmonology | 4/22/1996 |
| Deborah C. Givan, M.D. | Indianapolis | IN | Pediatric Pulmonology | 4/28/1997 |
| Rachel Joy Givelber, M.D. | Pittsburgh | PA | Pulmonology | 3/24/2004 |
| C. Delp Givens, Jr., M.D. | Newport News | VA | Pulmonology | 4/18/1988 |
| Alan Stephen Glann, M.D. | Lewiston | ME | Pulmonology | 4/17/2003 |
| Kevin Lee Glass, M.D. | Haymarket | VA | Pulmonology | 3/24/2004 |
| Adam M. Glassman, M.D. | Englewood | NJ | Pulmonology | 4/28/1997 |
| Daniel G. Glaze, M.D. | Houston | TX | Neurology/Pediatrics | 4/11/1999 |
| Kevin Gleeson, M.D. | Hershey | PA | Pulmonology | 4/11/1999 |
| Clarence G. Glenn, M.D. | Decatur | IL | Neurology | 4/23/1990 |
| Paul B. Glovinsky, Ph.D. | Albany | NY | Psychology | 6/16/1986 |
| Peter Glusker, M.D., Ph.D. | Fort Bragg | CA | Neurology | 4/22/1996 |
| Jeffrey E. Godwin, M.D. | Lima | OH | Pulmonology | 4/23/2001 |
| Vishal Goel, M.D. | Richmond | KY | Pulmonology | 4/16/2003 |
| Mark G. Goetting, M.D. | Evansville | IN | Neurology/Pediatrics | 4/17/2000 |
| Deborah Lynne Gofreed, M.D. | McLean | VA | Pulmonology | 3/22/2005 |
| Alexander Z. Golbin, M.D., Ph.D. | Skokie | IL | Neurology | 4/6/1992 |
| Avram R. Gold, M.D. | Northport | NY | Pulmonology | 4/18/1988 |
| Rochelle Goldberg, M.D. | Phoenix | AZ | Pulmonology | 4/29/1991 |
| Howard E. Goldberg, M.D. | Wentzville | MO | Pulmonology | 4/8/2002 |
| Lewis P. Golden, M.D. | Cumberland Foresioe | ME | Pulmonology | 4/14/2003 |
| Mari Miller Goldner, M.D. | Corvallis | OR | Pulmonology | 3/24/2004 |
| Marcy Levy Goldstein, M.D. | New Britain | CT | Pulmonology | 4/14/2003 |
| David S. Goldstein, M.D. | Scotch Plains | NJ | Pulmonology | 4/19/1993 |
| Gary R. Goldstein, M.D. | St. Louis | MO | Pulmonology | 4/11/1999 |
| Joseph A. Golish, M.D. | Cleveland | OH | Pulmonology | 4/24/1995 |
| Brian Winfield Goltry, M.D. | Boise | ID | Pulmonology | 4/14/2003 |
| Miquel D. Gomez, M.D. | Glendale | AZ | Pulmonology | 4/23/2001 |
| Juan Pablo Gomez, M.D. | McAllen | TX | Pulmonology | 3/22/2005 |
| Heydy Lorena Gonzalez-Arriaza, M.D. | Zurich | Switzerland | Psychiatry | 4/14/2003 |
| Sheila J. Goodnight-White, M.D. | Houston | TX | Pulmonology | 3/23/2005 |
| Mohamed R. Goolam Hussain, M.D. | Mississauga | ON | Family Medicine | 4/11/1999 |
| Nalaka S. Gooneratne, M.D. | Philadelphia | PA | Pulmonology | 4/23/2001 |
| Robert M. Gordon, M.D. | Oklahoma City | OK | Pulmonology | 4/23/2001 |
| Jacob L. Gordon, M.D. | Oak Park | MI | Neurology | 4/14/2003 |
| Kim Lesley Goring, M.B., B.S. | Silver Spring | MD | Pulmonology | 9/19/2006 |
| Michele Gorla, M.D. | Niskayuna | NY | Pulmonology | 4/14/2003 |
| Stephen Robert Gorman, D.O. | Scarborough | ME | Pulmonology | 9/19/2006 |
| Stephen M. Gorman, Jr., M.D. | Rutland | VT | Pulmonology | 4/6/1998 |
| Sudhir Gosain, M.B.,B.S. | Avon Lake | OH | Pulmonology | 3/24/2004 |
| Razvan Iulian Gosman, M.D. | Roseburg | OR | Pulmonology | 3/24/2004 |
| Mark Steven Gosnell, M.D. | Elkridge | MD | Pulmnology | 9/20/2005 |
| Brian M. Gotkin, M.D. | Hollywood | FL | Pulmonology | 4/23/2001 |
| Daniel J. Gottlieb, M.D. | Boston | MA | Pulmonology | 4/28/1997 |
| Raymond Gottschalk, M.B., Ch.B. | Hamilton | ON | Internal Medicine | 4/15/2003 |
| Gary K. Goucher, M.D. | Pulmonology | 4/23/2001 | ||
| Hossam Eldin M. Gouda, M.B.,B.S. | Pulmonology | 3/24/2004 | ||
| Behnam Malek Goudarzi, M.D. | Woodbridge | VA | Pulmonology | 3/22/2005 |
| Paul Gouin, M.D. | Decatur | GA | Pulmonology | 6/26/1987 |
| Amit Goulatia, M.D. | Wilkinsburg | PA | Pulmonology | 4/23/2001 |
| Jeffrey D. Gould, M.D. | Allentown | PA | Neurology | 4/23/2001 |
| Ramadevi Gourineni, M.D. | Hinsdale | IL | Neurology | 4/8/2002 |
| Yasmeen Sherali Gowani, M.D. | Orlando | FL | Pulmonology | 4/17/2003 |
| Ashwin Gowda, M.D. | Austin | TX | Psychiatry | 3/22/2005 |
| Anuj Goyal, M.D. | Beavercreek | OH | Pulmonology | 4/14/2003 |
| Gary Ross Goza, M.D. | Jacksonville | AR | Neurology | 4/8/2002 |
| David Gozal, M.D. | Louisville | KY | Pediatrics | 4/23/2001 |
| William Keith Graham, M.D. | Jackson | MO | Pulmonology | 4/14/2003 |
| James Adam Graham, M.D. | Beavercreek | OH | Pulmonology | 3/23/2005 |
| James P. Graham, M.D. | Dayton | OH | Pulmonology | 4/18/1988 |
| Robert P. Granacher, Jr., M.D. | Lexington | KY | Psychiatry | 3/30/1985 |
| Anthony Alexander Granato, M.D. | Congers | NY | Pulmonology | 4/17/2003 |
| BJB Grant, M.D. | Chapel Hill | NC | Pulmonology | 4/17/2003 |
| Timothy L. Grant, M.D. | Miami | FL | Neurology | 4/17/2000 |
| Thomas R. Gravelyn, M.D. | Ann Arbor | MI | Pulmonology | 4/6/1998 |
| Susan J. Gravelyn, M.D. | Ann Arbor | MI | Pulmonology | 4/17/2000 |
| Anitra Simone Graves, M.D. | Atlanta | GA | Internal Medicine | 3/23/2005 |
| Todd Michael Greatens, M.D. | Nisswa | MN | Pulmonology | 3/24/2004 |
| Donald A. Greeley, M.D. | Urbana | IL | Pulmonology | 4/24/1995 |
| Ronald Green, M.D. | Arlington | WA | Pulmonology | 4/8/2002 |
| Joel A. Greenberg, M.D. | Savannah | GA | Neurology | 4/18/1988 |
| Harly E. Greenberg, M.D. | New Hyde Park | NY | Pulmonology | 4/6/1992 |
| Seth H. Greenberg, M.D. | Virginia Beach | VA | Pulmonology | 4/11/1999 |
| Geoffrey M. Greenberg, M.D. | Yakima | WA | Pulmonology | 4/24/1989 |
| Donald W. Greenblatt, M.D. | Rochester | NY | Pulmonology | 4/18/1988 |
| Glen P. Greenough, M.D. | Lebanon | NH | Neurology | 4/23/2001 |
| Philip Ernest Greenspan, M.D. | Westport | CT | Pulmonology | 9/20/2005 |
| Paul M. Greif, M.D. | Norwich | CT | Pulmonology | 4/29/1991 |
| M. Frank Greiffenstein, Ph.D. | Royal Oak | MI | Clinical Psychology | 4/6/1998 |
| John J. Greve, M.D. | Portland | OR | Pulmonology | 4/24/1995 |
| Edward Joseph Grey, M.D. | Culloden | WV | Pulmonology | 4/8/2002 |
| May L. Griebel, M.D. | Little Rock | AR | Neurology/Pediatrics | 4/24/1995 |
| Dwayne M. Griffin, D.O. | Petoskey | MI | Pulmonology | 4/17/2000 |
| Madeleine M. Grigg-Damberger, M.D. | Albuquerque | NM | Neurology | 4/23/1990 |
| Adam Laurence Griggs, D.O. | Kissimmee | FL | Pulmonology | 3/23/2005 |
| Wendell A. Grogan, M.D. | Ridley Park | PA | Neurology | 6/26/1987 |
| Kathy R. Gromer, M.D. | St. Paul | MN | Pulmonology | 4/14/2003 |
| David Charles Gross, M.D. | Putomac | MD | Pulmonology | 4/17/2003 |
| Robert Gross, M.D. | Chicago | IL | Neurology | 3/25/1983 |
| Paul T. Gross, M.D. | Burlington | MA | Neurology | 4/6/1992 |
| James Linford Gross, D.O. | Scottsdale | AZ | Family Practice | 3/25/2004 |
| Gino Grosso, M.D. | Philadelphia | PA | Psychiatry | 4/18/1988 |
| Maritza L. Groth, M.D. | Mineola | NY | Pulmonology | 4/11/1999 |
| Bruce S. Grover, M.D. | Kingsport | TN | Pulmonology | 4/22/1996 |
| Chelsea Renee Grow, D.O. | Pass Christian | MS | Neurology | 9/20/2005 |
| John Edward Grubbs, M.D. | Paducah | KY | Neurology, Clinical Neurophysiology | 3/23/2005 |
| Zoran M. Grujic, M.D. | Brookfield | IL | Neurology | 4/11/1999 |
| Steven Keith Grundfast, M.D. | Warwick | NY | Pulmonology | 3/24/2004 |
| David Hongrong Guan, M.D. | Chattanooga | TN | Pulmonology | 4/8/2002 |
| Juan J. Guardiola, M.D. | Louisville | KY | Pulmonology | 4/8/2002 |
| Melanie Lynne Guerrero, M.D. | Bethesda | MD | Pulmonology | 3/24/2004 |
| Manish Kumar Gugnani, M.D. | Lawrenceville | NJ | Internal Medicine | 4/15/2003 |
| Peter S. Guido, M.D. | Albuquerque | NM | Psychiatry | 4/22/1996 |
| Carole Ann Guillaume, M.D. | Overland Park | KS | Family Practice | 3/23/2005 |
| Christian Guilleminault, M.D. | Stanford | CA | Neurology | 10/3/1980 |
| Robert Gunnink, D.O. | La Crosse | WI | Neurology | 4/15/2003 |
| Ashok K. Gupta, M.D. | East Lansing | MI | Pulmonology | 4/16/2003 |
| Divya Gupta, M.D. | Manchester | CT | Neurology | 4/8/2002 |
| Vinita Gupta, M.D. | Hudson | NY | Pulmonology | 4/23/2001 |
| Sandeep Gupta, M.D. | Houston | TX | Pulmonology | 4/11/1999 |
| Rakesh M. Gupta, M.D. | Providence | RI | Pulmonology | 4/17/2000 |
| Madhulika A. Gupta, M.D. | London | ON | Psychiatry | 6/26/1987 |
| Jitendrakumar Shyamlal Gupta, M.B., B.S. | Dakota Dunes | SD | Pulmonology | 9/20/2005 |
| Nilesh I. Gupta, M.D. | Brookfield | WI | Pulmonology | 9/20/2005 |
| Paul J. Gurecki, M.D. | Oak Ridge | TN | Neurology | 4/17/2000 |
| Indira Gurubhagavatula, M.D. | Pulmonology | 4/11/1999 | ||
| Paul M. Gustman, M.D. | Miami | FL | Pulmonology | 4/14/2003 |
| Carole Ann Guy | Hockessin | DE | Pulmonology | 3/24/2004 |
| Edward Gwin, M.D. | Springfield | MO | Pulmonology | 4/29/1991 |
| Charles J. Gwizdala, M.D. | Traverse City | MI | Pulmonology | 4/6/1998 |
