The Social Security Directory
Independent guide built from public SSA data. Not affiliated with the Social Security Administration. Apply, appeal and check your case only on ssa.gov.

Home › Oregon › Ontario › 908 SE 5th Avenue

Social Security field office · code B77

Ontario, OR Social Security Office

The Social Security office in Ontario is at 908 SE 5th Avenue, Ontario, OR 97914. Phone: (866) 403-8016. Hours: Monday to Friday, 9:00 AM - 4:00 PM. If you appeal a disability decision, your hearing goes to the Billings hearing office (about 9.2 months on average).

Address, phone and office hours

Address908 SE 5th Avenue
Ontario, OR 97914
Phone(866) 403-8016
Fax(833) 950-3230
Monday9:00 AM - 4:00 PM
Tuesday9:00 AM - 4:00 PM
Wednesday9:00 AM - 4:00 PM
Thursday9:00 AM - 4:00 PM
Friday9:00 AM - 4:00 PM
Saturday–SundayClosed
SSA office codeB77

Address, phone and hours from SSA's official field office file. Offices close on federal holidays.

Appealing a disability decision from the Ontario office

SSA lists the Ontario field office among the offices served by the Billings Hearing Office. That is where an administrative law judge will hear your case if your claim is denied at reconsideration.

Hearing officeBillings, MT(877) 545-5512
Average processing time9.2 mo279 days · national 8.6 mo
Approval rate at hearings63%FY 2026 · national 58%

Before the hearing, the medical decision is made by Disability Determination Services. Read how to appeal a denial (60-day deadline) and what happens at the hearing.

What you can do at this office

  • Apply for retirement, disability (SSDI), SSI, survivors and spouse benefits. Social Security card applications too.
  • Replace a Social Security card or update your name.
  • Request a reconsideration or a hearing if your claim was denied (forms).
  • Report changes that affect your benefits and get benefit verification letters.

Many of these services can be done online at ssa.gov or by calling 1-800-772-1213. See how to schedule an appointment.

Frequently asked questions

What is the phone number of the Ontario Social Security office?

The Ontario, OR Social Security office phone number is (866) 403-8016 and its fax is (833) 950-3230. SSA's national line is 1-800-772-1213.

What are the hours of the Ontario Social Security office?

Monday to Friday, 9:00 AM - 4:00 PM, according to SSA. It is closed on weekends and federal holidays.

Where is the Social Security office in Ontario?

908 SE 5th Avenue, Ontario, OR 97914.

Where are disability appeal hearings held for the Ontario office?

SSA lists the Ontario field office among those served by the Billings Hearing Office (Billings, MT). Its average processing time is about 9.2 months.

Do I need an appointment?

SSA says that if you need in-person help, you must make an appointment to visit a local office. Call the office or 1-800-772-1213 (8:00 a.m. to 7:00 p.m. local time, Monday to Friday). Many services are also available online at ssa.gov.