| Louis E. Calabro | Ph.D. | Yes | | 6-64 | | |
| Megan Callahan | Psy.D. | Yes | | 18 and up | | |
| Ty S. Callahan | Ph.D. | Yes | | Late Adolescent through Geriatric | | |
| Theresa Campbell | Ph.D. | Yes | | | | |
| Patricia Camplair | Ph.D. | Yes | | 16 & older | | |
| Daniel X. Capruso | Ph.D. | Yes | | | | |
| Kristen Caraher | Psy.D. | Yes | | 18+ | | |
| Jeremy Stark Carmasin | Ph.D. | Yes | | 18+ | | |
| Dominic A Carone | Ph.D. | Yes | | 6-100 | | |
| Jerome Silvio Caroselli | Ph.D. | Yes | | 16- 90+ | | |
| Carmen I. Carrión | Psy.D. | Yes | | 18+ | | |
| Andrea J. Casher | Psy.D. | Yes | | adults | | |
| Jennifer E. Cass | Ph.D. | Yes | | | | |
| Adam R. Cassidy | Ph.D. | Yes | | | | |
| Brian Castelluccio | Ph.D. | Yes | | 18+ | - Massachusetts
- Rhode Island
| |
| Jessica Mimi Castelo | Ph.D. | Yes | | 6-100 | | |
| Christine L Castillo | Ph.D. | No | | 0-21 | | |
| Melissa Nadine Castro | Psy.D. | Yes | | 18+ | | |
| Margaret Allison Cato Jackson | Ph.D. | Yes | | 10 months to 25 years | | |
| Jane H. Cerhan | Ph.D. | Yes | | | | |
| Alison N Cernich | Ph.D. | Yes | | | | |
| Yurivia Cervantes-Manzo | Ph.D. | Yes | | | | |
| Michael D. Chafetz | Ph.D. | Yes | | Adults | | |
| Freeman M. Chakara | Psy.D. | Yes | | 5-100 | | |
| Jana Chan | Ph.D. | Yes | | 5-23 | | |