This exploratory study assesses the dental care needs and access of low-income, mostly immigrant cancer patients enrolled in New York City's Integrated Cancer Care Action Network (ICCAN). A nested cohort of patients from ICCAN responded to a dental needs assessment that surveyed current dental health as well as access to, and use of, dental services. 373 patients participated. Self-report of having a dentist to visit, current dental problems, income, and insurance most significantly predicted a dentist visit in the past year. Discussing treatment-related oral side effects with the oncologist greatly increased the likelihood of seeing a dentist, but few patients reported having had this conversation. There is a lack of oral care information flowing from oncologists to low income patients. We found a high number of reported dental problems: concerning because of potential treatment interference and risk for infection. Finally, ability to pay largely determined dental care access in our study participants.