Apply in person at one of these DPSS office locations. No insurance or proof of citizenship required.I, the undersigned, certify that I (or my dependent) have insurance coverage and assign all insurance benefits directly to. The Riverside County Oral Health Program (RCOHP) is tasked with conducting activities at the local level that support the California Oral Health Plan. To contact Medi‑Cal Dental, call the Customer Service Center at 1‑800‑322‑6384. Many clinics and some hospitals offer free or lowcost dental care. Open the blue dropdown below to find these places. With IEHP Medi-Cal, you get Medi-Cal's benefits and services, including no monthly premiums and zero cost for doctor visits, medication and hospital stays. Get the Most out of Your Insurance. Most dental insurance programs are accepted at Riverside Dental Center.