Guests
- Doctor Joao Goulao (9)
- Doctor Katharine Neill Harris (1)
- Doctor Patricia Daly (1)
- Doctor Perry Kendall (15)
- Doctor Richard Andrews (7)
- Doctor Rick Doblin (7)
- Doctor Theresa Tam (1)
- Dominic Holden (6)
- Don Duncan (2)
- Don Hall (8)
- Don Martin (1)
- Don Winslow (11)
- Don Wirtshafter (6)
- Donald Abrahms (7)
- Donald Abrams (2)
- Donald Macpherson (2)
- Donald Tashkin (5)
- Donald Trump (4)
- Donald Vereen (2)
- Donnell Alexander (1)
- Donnie Varnell (2)
- Dorothy E. Roberts (1)
- Dorothy Gaines (1)
- Dorsey Nunn (3)
- Doug Fine (6)
- Doug Hiatt (1)
- Doug Honig (1)
- Doug Kress (1)
- Doug Mcvay (354)
- Douglas Hiatt (4)
- Dr. Carl Hart (10)
- Dr. Christoph Buerki (2)
- Dr. David Bearman (2)
- Dr. Donald Abrams (5)
- Dr. Donald Tashkin (4)
- Dr. Donald Tashkin Of Nida (2)
- Dr. Duncan Mccormick (1)
- Dr. Emily Wang (1)
- Dr. Ethan Russo (3)
- Dr. J. Michael Bostwick (2)
- Dr. Joao Goulao (8)
- Dr. Joao Goulao Drug Czar Of Portugal (1)
- Dr. Joel Hochman (1)
- Dr. Julian Buchanan (14)
- Dr. Kent (3)
- Dr. Khalid Tinasti (34)
- Dr. Manny (1)
- Dr. Matthew Fogg (7)
- Dr. Michael Aldrich (2)
- Dr. Monica Barratt (1)