- Deep Brain Stimulation
- Dental Bonding
- Dental Braces
- Dental Bridges
- Dental Exam
- Dental Health Mouth Guards
- Dental Implant Surgery
- Dental Implants
- Dental Sealants
- Dental Surgery (Oral Surgery)
- Dental Veneers
- Dentures
- Depo-Provera
- Dermabrasion
- Dermagraphics
- Detecting Hearing Loss In Children
- Diaphragm
- Diaphragm Pacing for Spinal Cord Injury
- Dilation And Curettage
- Discogram
- Diskectomy
- Duodenoscopy (Endoscopy)