| Katherine Derbyshire | Ph.D. | Yes | | 18+ | | |
| Jonathan DeRight | Ph.D. | Yes | | 15+ | - District of Columbia
- Maryland
- Virginia
| |
| Thomas J. Deters | Ph.D. | Yes | | | - Massachusetts
- New Hampshire
| |
| Gayle Deutsch | Ph.D. | Yes | | Ages 6 through older adults | | |
| Saskia DeVaughn | Ph.D. | Yes | | 4+ | | |
| Gennaro M. DiCarlo | Psy.D. | Yes | | children, adolescents, and young adults | | |
| Mercedes Dickinson | Ph.D. | Yes | | | | |
| Sid Dickson | Ph.D. | Yes | | 16+ | | |
| Bridget M Doane | Ph.D. | Yes | | 18+ through Geriatric | | |
| Jonathan N. Dodd | Psy.D. | Yes | | 3 year - 80 years | | |
| Carl B. Dodrill | Ph.D. | No | | | | |
| Christopher Domen | Ph.D. | Yes | | | | |
| Jacobus A. M. Donders | Ph.D. | Yes | | Toddler through Geriatric | | |
| Nicholas A. Doninger | Ph.D. | Yes | | 18 - 90s | | |
| Alison J Donnell | Ph.D. | Yes | | | | |
| Kerry Donnelly | Ph.D. | Yes | | 18 and up | | |
| Jill Dorflinger | Ph.D. | Yes | | under 23 years of age | | |
| Robert C. Doss | Psy.D. | Yes | | Adults | | |
| Jacqueline J. Douglas | Ph.D. | No | | | | |
| Lauren Lee Drag | Ph.D. | Yes | | 13+ | | |
| Daniel L. Drane | Ph.D. | Yes | | | | |
| Jamie K. Ducharme | Ph.D. | Yes | | adult | | |
| Kevin Duff | Ph.D. | Yes | | adults | | |
| Paul Dukarm | Ph.D. | Yes | | 16+ | | |
| Callie Dunn | Ph.D. | Yes | | 18+ | | |