(1) If the personal representative disallows a claim in whole or in part, the claimant, within 30 days after the date of mailing or delivery of the notice of disallowance, may either:
(a) File with the court in the estate proceeding a request for summary determination of the claim by the probate court, with proof of service of a copy of the request upon the personal representative or the attorney of the personal representative; or
(b) Commence a separate action against the personal representative on the claim in any court of competent jurisdiction. The action shall proceed and be tried as any other action.
(2) If the claimant fails to either request a summary determination or commence a separate action as provided in subsection (1) of this section, the claim, to the extent disallowed by the personal representative, is barred.
(3) In a proceeding for summary determination of a claim or in a separate action on a claim the claim shall be allowed or judgment entered on the claim in the full amount of the liability, if any, of the decedent to the claimant. However, the claim shall be paid only to the extent of the assets of the estate allocable to the payment of the claim pursuant to ORS 115.115 and 115.125.