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OSI requires your health information and medical history prior to your procedure. Filling out the online form is easy, secure, and essential for you to receive the best care possible.

Pre-Surgical Information

In order to provide the best care and avoid any last-minute cancellations, we require a medical history questionnaire to be completed. This is available online for your convenience and must be completed at least 24 to 48 hours prior to your scheduled surgical date.


This tool is part of the industry-leading, advanced technology system implementing HIPAA security for your information.

  • Please complete all sections
  • If a section does not apply, please select the check box for “No Issues”
  • Be sure to include your complete medical history including current conditions, prescription and over-the-counter medications (past and present), past medical conditions/surgeries

Upon receipt, someone from our team will call you regarding your appointment. 

What You Will Need:

  • List of all medications
  • List of allergies and sensitivities
  • Name and date of previous surgeries
  • Your medical history

What To Expect

In order to provide the best care and avoid any last-minute cancellations, we require a medical history questionnaire to be completed. This is available online for your convenience and must be completed at least 48 hours prior to your scheduled surgical date.

The Day Before Surgery

The day before surgery, please expect two phone calls. An anesthesiologist from the surgery center will attempt to call you at the number you provided to your physician’s office. This phone call is very important and is made in an effort to speak with you about your medical and surgical history. A Pre-Op nurse will call to provide your surgery check-in time.  They will also review any information you completed online (Simple Admit) which may require clarification.


  • Nothing to eat or drink after midnight the night prior to your surgery. (No water, food, gum, cough drops, smoking, etc.)
    • If you fail to follow this instruction it is likely that your surgery will be cancelled.
  • Talk to your anesthesiologist (they will call you).
  • No jewelry allowed in the Operating Room including body piercings. Please leave all jewelry at home.
  • Wear loose fitting comfortable clothing which will fit around newly placed bandages, splints, casts, etc.
  • No contacts or eye glasses in the Operating Room. If you need glasses or contacts to see for driving, signing consents, etc. it is okay to wear them to the center but please bring a case to put them in. You will be required to remove them prior to surgery.
  • Dentures and hearing aids may be worn to the surgery center. You will be required to remove them prior to surgery.
  • Females between the ages of 12 and 55 years old will need to give a urine sample upon admission to the pre-op area
  • Medications – all patients taking prescription or over-the-counter medications should complete the Medication section on Simple Admit. If you did not do so, please bring a list of your medications (with strength and dose).
  • Children are not allowed to visit in the Pre-op and Recovery areas.
  • Currently, visitors are not allowed in the Pre Op and Recovery areas unless the patient is a minor, in which case one parent is allowed.
  • You must have a legal identification card and insurance card to complete the registration process prior to surgery.
  • The surgery center business office will call you before your surgery to verify insurance. If you do not receive a call from the business office by noon the day before your procedure please call the center between the hours of 12:30 pm – 4:30 pm at 971-708-0400 to verify insurance.
  • Some medications may be taken the morning of surgery. Please contact your physician if you have questions about these medications.

Pre-Operative Checklist

  • Attend all recommended/required medical appointments, including any pre-operative testing, if necessary.
  • Fill prescriptions from your surgeon.
  • Confirm your ride home from the surgery center. You must have a responsible adult to take you home and care for you for 24 hours after your surgery. We do not permit patients to go home via public transportation (bus, Uber, Lyft, etc).  If you do not have a ride and caretaker, your surgery will be canceled.

The Day of Surgery

  • No eating or drinking after midnight the night prior to surgery.
  • Report to the surgery center approximately 1½ hours prior to your scheduled surgery time (our pre-operative nurse will confirm the time the day before surgery).
  • Arrive promptly at the time instructed during your pre-op phone call. This will allow adequate time for all necessary admission procedures.
  • Please bring your insurance ID cards, photo ID, and any necessary method or payment. If special financial arrangements are necessary, please call the Oregon Surgical Institute prior to admission.
  • Leave jewelry and all valuables at home.
  • Remove body piercing jewelry. No false eyelashes.
  • Upon arrival, you will change into a hospital gown and slippers, which we provide. You will be asked to remove contact lenses, dentures, and any prosthesis.
  • Be sure to bring any paperwork your doctor gave you such as test results or your medical history and a list of medications you are taking.
  • Our receptionist will review several forms which require your signatures.
  • Our pre-operative team will meet with you before your surgery to discuss your anesthesia, review medical history with medications, as well as provide familiar faces when you awaken from anesthesia.
  • Dress in clean, comfortable clothes to wear to the surgery center.

The Day After Surgery

  • After surgery you will be moved to the Recovery Area where you will be closely monitored until you are ready to go home.
  • Recovery times for patients vary significantly depending on the type of surgery performed. Our Recovery Area staff will be in contact with your ride to provide up-to-date estimates on discharge times as your recovery progresses.
  • It is perfectly normal to feel discomfort in the area of the surgery. You may also experience some drowsiness or dizziness depending on the kind of anesthesia you received.
  • Your surgeon will provide specific instructions for care while recovering at home. In the event of difficulty, please call your surgeon.
  • For the first 24 hours following surgery, do not engage in strenuous activities, do not drink alcoholic beverages, drive or make any important decisions.
  • You will be asked to complete a questionnaire about the care you received. Your comments will enable us to continue to improve our services.

Health Insurance

We participate in a wide range of health plans and accept Medicare assignment. Call us for an updated list. 971-708-0400