Directory of Physicians (MD/DO)
- John Clark, MD
- John Clarke, MD
- John Clayton, MD
- John Clayton, MD
- John Cocchiara, MD
- John Cole, MD
- John Coleman, MD
- John Collier, MD
- John Collins, MD
- John Colonna, MD
- John Como, MD
- John Condie, MD
- John Cone, MD
- John Connell, MD
- John Conrad, MD
- John Cook, MD
- John Cook, MD
- John Coon, MD
- John Cooper, MD
- John Cope, MD
- John Cope, MD
- John Cordero, MD
- John Corman, MD
- John Corr, MD
- John Cosgrove, MD
- John Cossa, MD
- John Cossentino, MD
- John Costin, MD
- John Coughlin, MD
- John Cowling, MD
- John Cox, MD
- John Coyle, MD
- John Crabtree, MD
- John Crabtree, MD
- John Crews, MD
- John Crighton, MD
- John Crow, MD
- John Crow, MD
- John Crump, MD
- John Culhane, MD
- John Cull, MD
- John Cumming, MD
- John Cunningham, MD
- John Cunningham, MD
- John Cunningham, MD
- John D'Emilia, MD
- John Daake, MD
- John Daigle, MD
- John Daigle, MD
- John Dali, MD