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Dental Clinics in Ontario, OR

11 dental practices in Ontario. Listings come from the federal NPPES provider registry — call ahead to confirm hours and insurance before you book.

Ontario at a glance

Population
11,842
Median household income
$46,308 (U.S. $80,734)
Median age
35.2 (U.S. 38.9)
Age mix
24.6% under 18 · 18.1% age 65+
Without health insurance
8.9% (U.S. 8.4%)
Residents per registered dentist
Ontario: about 592 · Malheur County: about 1,331 · U.S.: about 1,244

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (Ontario city, Oregon). Dentist ratios count NPI-registered dentists by practice address and may include dentists who are not actively seeing patients.

Before you book

Most dental offices see new patients within a week or two; many keep same-day slots for emergencies like a severe toothache or a knocked-out tooth. Bring a photo ID, your dental insurance card (or ask about cash pricing and membership plans), and a list of current medications. If you have severe facial swelling, uncontrolled bleeding, or trauma from an accident, go to an emergency room first.