| Name | Affiliation | Occupation / Position Title | City | Country | State | |
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| DeVille, Danielle | Children's Mercy Hospital | Psychologist | Kansas City | United States | Missouri | View |
| DeVine, Gary | DeVine Interventions Group | Professional Counselor | Philadelphia | United States | Pennsylvania | View |
| Devlin, Hillary | Private Practice | Clinical Psychologist | New York | United States | New York | View |
| Dewane, Claudia | Clinical Support Associates | Clinical Social Worker/Supervisor | Lemoyne | United States | Pennsylvania | View |
| Dewar, Grant | An Open Conversation | CEO | Yankalilla | Australia | South Australia | View |
| Di Gangi Herms, Alida | Azienda Sanitaria dell'Alto Adige - Ospedale Comprensoriale di Bressanone -Servizio Psicologico | Psicologa Psicoterapeuta | Bressanone | Italy | | View |
| Di Lorenzo, Rosa | Private Psychology Practice | Licensed Clinical Psychologist, Supervisor | Sacramento | United States | California | View |
| Dianiska, Myron | Private Psychology Practice | psychologist | Sugar Land | United States | Texas | View |
| Dias, Júlia | Clinical Psychologist, PC | MSc | Belo Horizonte | Brazil | Minas Gerais | View |
| Díaz Salabert, Miguel | ONCE | Psychologist | Barcelona | Spain | Barcelona | View |
| Díaz-Dosque, Carmen Gloria | Chile | Sexual Therapist | | Chile | Santiago Metropolitan | View |
| Díaz, Bryan | PERU | Psicólogo | Lima | Peru | Lima | View |
| Diaz, Gabriela | San Mateo Medical Center | Licensed Clinical Paychologist | San Ramon | United States | California | View |
| DIAZ, GUSTAVO | AATA | Psicólogo | NUÑEZ | Argentina | Capital federal | View |
| Diaz, Jazmin | Colegio de Psicólogos de la Provincia de Córdoba | Licenciada en Psicología | Villa María | Argentina | | View |
| DIAZ, KAREM | CBT | Therapist | SAMMAMISH | United States | Washington | View |
| Diaz, Nicholas | Victory Bay Wellness | Lead Clinician | Princeton | United States | New Jersey | View |
| Diaz, Victoria | Profesional | Psicóloga | Corrientes | Argentina | Corrientes | View |
| DiChiara, Carmine | Private Practice | Clinical Psychologist | Newton Upper Falls | United States | Massachusetts | View |
| Dickens, Caroline | Dr. Caroline Dickens, Clinical Psychologist Inc. | Psychologist | San Francisco | United States | | View |
| Dickman, Grace | Real Therapy | Creator & Therapist | Brooklyn | United States | New York | View |
| Dickson, Daniel | University of Wisconsin school of Medicine and Public Health | Clinical Assistant Professor | Madison | United States | Wisconsin | View |
| Dickter, Ben | USAF | Psychologist | Swansea | United States | Illinois | View |
| Digout Erhardt, Angela | Centrepointe Professional Services | Clinical Psychologist | Nepean | Canada | Ontario | View |
| Dijkstra-le Clercq, Marjanne | Praktijk Dijkstra | child and youth psychologist/mental health psychologist | Nieuwkoop | Netherlands | Zuid-Holland | View |
| Dijkstra, Jeanette | Clinical Psychologist, PC | PhD | Maastricht | Netherlands | Limburg | View |
| DiMatteo, Julie | CBT Specialists of New Jersey | Psychologist | Rochelle Park | United States | New Jersey | View |
| Dimler, Mallory | Private Practice | Clinical Psychologist | Madison | United States | New Jersey | View |
| Dinovo, Salvatore | the ohio state university | Licensed Psychologist | San Diego | United States | California | View |
| Dionne, Frédérick | Université du Québec à Trois-Rivières | Psychologist, Assistant Professor | Trois-Rivieres | Canada | Quebec | View |
| Dittmar, Suzy | Private practice in Southwest London/Surrey | ACT Therapist | West Molesey | United Kingdom | Surrey | View |
| Dixon, Dustin | Connections Behavior Planning & Intervention | BCBA | Kent | United States | Washington | View |
| Dmitrova, Ekaterina | Private Practice | Clinical psychologist | Moscow | Russian Federation | Moskva | View |
| Do Nascimento, Guilherme | Psicologia Clínica | Psicólogo | Salvador | Brazil | Bahia | View |
| Doczy, Adrian | no | Psychologist | LAKE MACQUARIE | Australia | New South Wales | View |
| Doensen, Marieke | Mental Fit | Therapist | Venlo | Netherlands | Limburg | View |
| Dolber, Trygve | University Hospitals/Case Medical Center | Staff Psychiatrist | Shaker Heights | United States | Ohio | View |
| Dollah, Siti Nordiana | Psychiatric Department | Doctor | Wangsa Maju | Malaysia | Wilayah Persekutuan Kuala Lumpur | View |
| Dombeck, Mark | Psychtools Psychology Group | Psychologist | Alameda | United States | California | View |
| Domurat, Marcin | Trzecia Fala | Psychoterapeuta | | Poland | mazowieckie | View |
| Donahue, John | The University of Baltimore | Associate Professor | Baltimore | United States | Maryland | View |
| Donovan, David | UCSF | Clinical Psychologist | Portland | United States | Oregon | View |
| Doorn, Petra | Private Practice | psychologist & trainer in ACT | Utrecht | Netherlands | Utrecht | View |
| Doran, Justin | AHPRA | Clinical Psychologist | Sydney | Australia | New South Wales | View |
| Doreste, Raura | Montefiore Medical Center | Attending Psychologist | Bronx | United States | New York | View |
| Dorey, Lucy | University of Southampton & Evolve Training and Therapy | Researcher, Counsellor, ACT Therapist and Supervisor | Southampton | United Kingdom | Hampshire | View |
| Dorgan, David | emcc | Founder | Castlemartyr | Ireland | Cork | View |
| dos Santos, Ana | Stillpoints Counselling Services | Counselling Therapist M.Ed, C.C.C., LCT | Fredericton | Canada | New Brunswick | View |
| Dos Santos, Bruno | none | Psychologist | Garca | Brazil | Sao Paulo | View |
| dos Santos, Gabriela | Private Practice | Psychotherapist | São Paulo | Brazil | Sao Paulo | View |