| Name | Affiliation | Occupation / Position Title | City | Country | State | |
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| Cassidy, Sarah | Maynooth University & Smithsfield Clinic | Educational Psychologist | Athboy, Co. Meath | Ireland | Meath | View |
| Weiss, Karen | Mayo Clinic | Pediatric Pain Psychologist | Rochester | United States | Minnesota | View |
| Roche, Anne | Mayo Clinic Rochester, MN | Senior Associate Consultant/Assistant Professor | Rochester | United States | Minnesota | View |
| Markota, Matej | Mayo Clinic Rochester, MN | Assistant Professor | Rochester | United States | Minnesota | View |
| Tao, Chun | Mayo Clinic Arizona | Clinical Health Psychologist | Scottsdale | United States | Arizona | View |
| Hougen, Ronald | Mayo Clinic Health System-Decorah | Licensed Psychologist | Decorah | United States | Iowa | View |
| Orellana, Mayra | Mayra Orellana | Licenciada en psicología | Hurlingham | Argentina | Buenos Aires | View |
| Zdunek, Maria | Maywood District 89/ Smart Behavior Solutions | Social Worker | Melrose Park | United States | Illinois | View |
| heydari, samaneh | Mazandaran University of Medical Sciences | Psychotherapist | fereydonkenar | Iran, Islamic Republic of | Mazandaran | View |
| Purser, Julia | MBACP, BPC | Counsellor | Bristol | United Kingdom | | View |
| Kimball, Ronald | MBHC | clinical psychologist | Rockville | United States | Maryland | View |
| Fitzpatrick, Marilyn | McGill University | Professor Emerita | Montreal | Canada | Quebec | View |
| Gruner, Nate | McLean Hospital | Staff Therapist | Belmont | United States | Massachusetts | View |
| Faro, Alyssa | McLean Hospital | Director of Clinical Services | Belmont | United States | Massachusetts | View |
| Lewis, Elizabeth | McLean Hospital/Harvard Medical School | Staff Psychologist | Belmont | United States | Massachusetts | View |
| McNeill, George | McNeill Consulting and Coaching LLC | Consultant and Coach | Eagle | United States | Colorado | View |
| McQuillen, John | McQuillen Psychology | Clinical Psychologist | Caringbah | Australia | New South Wales | View |
| Farah, Larissa | MD Anderson Cancer Center | Counselor | Houston | United States | Texas | View |
| Dawood, Ahmad | medecins sans frontieres (MSF) | Psychologist | Tulkarm | Palestine, State of | Tulkarm | View |
| Karatepe, Hasan Turan | Medeniyet University Psychiatry Department | psychiatrist | İstanbul | Turkey | Istanbul | View |
| Ackermann, Klaus | Median Klinik Wilhelmsheim | Psychologischer Psychotherapeut | Backnang | Germany | Baden-Württemberg | View |
| Gillies, Ralph | Medical College of Georgia at Augusta University | Psychologist | Augusta | United States | Georgia | View |
| Buhk, Alex | Medical College of Wisconsin | Clinical Health Psychologist / Assistant Professor | Milwaukee | United States | Wisconsin | View |
| Wedin, Sharlene | Medical University of South Carolina | Clinical Psychologist/Associate Professor | Charleston | United States | South Carolina | View |
| Dwyer, Robyn | Medicare registered Solo practitioner | Clinical Psychologist | Carlton | Australia | Victoria | View |
| Yavuz, Fatih | Medipol University, Department of Psychology | Psychiatrist | Istanbul | Turkey | Istanbul | View |
| Bruring, Dave | Medulla | Therapist & Coach | Rotterdam | Netherlands | Zuid-Holland | View |
| Hudspeth, Brittany | Meet Me In The Middle Counseling P.C | outpatient therapist | Pittsburgh | United States | Pennsylvania | View |
| Menn, Cassandra | Meg Wilson Counseling | LPC-A | Conroe | United States | Texas | View |
| Connell, Megan | Megan A. Connell PsyD ABPP PLLC | Psychologist | Charlotte | United States | North Carolina | View |
| Davis, Megan | Megan Davis Psychotherapy, PLLC | LCSW, PMH-C | Raleigh | United States | North Carolina | View |
| Piesman, Megan | Megan Piesman, PhD LLC | Clinical Psychologist | Englewood | United States | New Jersey | View |
| Kinnunen, Inna | Mehiläinen | Psychotherapist | Helsinki | Finland | Uusimaa | View |
| Salmiaitta, Pentti | Mehiläinen | Psychologist | Kotka | Finland | Kymenlaakso | View |
| Rasimus, Susanna | Mehiläinen Oy, Finland. | Occupational Health Psychologist, Psychotherapist | Tampere | Finland | Tampere Region | View |
| Quinlan, Robert | Melbourne University | Psychotherapist | Mount Dandenong | Australia | Victoria | View |
| Hanna, Toni | Member AASW; Accredited Mental Health Social Worker | Clinical Social Worker - Private Practice | Strathalbyn | Australia | South Australia | View |
| Garcia y Badiola, Violeta | Membresía | Psicologa | Jose Mármol | Argentina | Buenos Aires | View |
| BOSCH, Karina | Membresia minima | Psicóloga | Mar del Plata | Argentina | Buenos Aires | View |
| Lemmi, Blanca | Membresía por un año | Lic en Psicología | Mar del Plata | Argentina | Buenos Aires | View |
| Souza, Patrick | Membro | Psicólogo Clínico | Serra | Brazil | Espirito Santo | View |
| Oliveira, Iliuska | Membro | Psicóloga | Ribeirão Preto | Brazil | | View |
| Ross, Jae | Memorial Sloan-Kettering Cancer Center | Assistant Attending Psychologist | New York | United States | New York | View |
| Jardin, Charles | Mended Hope Therapy, PLLC | Business Owner | Hillsborough | United States | North Carolina | View |
| Doensen, Marieke | Mental Fit | Therapist | Venlo | Netherlands | Limburg | View |
| Stepien, Kasia | Mental Freedom Counselling | Registered Clinical Counsellor | Merville | Canada | British Columbia | View |
| De Jong, Marloes | Mental Health | Mental Health Psychocologist | Utrecht | Netherlands | Utrecht | View |
| Almog, Amanda | Mental Health | Therapist | Grants Pass | United States | Oregon | View |
| van der Gulik, Paula | Mental Health | Counselor/ therapist/ clinician | Hellevoetsluis | Netherlands | Zuid-Holland | View |
| Sikkema, Teije | Mental Health | Coach | Leeuwarden | Netherlands | Friesland | View |