Jamie Holmes says a surgery center tried to make her pay for two operations after she underwent only one. She refused to buckle, even after a collection agency sued her last winter. Holmes, who lives in northwestern Washington state, had surgery in 2019 to have her fallopian tubes tied, a permanent birth-control procedure that her insurance company agreed ahead of time to cover.

During the operation, while Holmes was under anesthesia, the surgeon noticed early signs of endometriosis, a common condition in which fibrous scar tissue grows around the uterus, Holmes said. She said the surgeon later told her he spent about 15 minutes cauterizing the troublesome tissue as a precaution. She recalls him saying he finished the whole operation within the 60 minutes that had been allotted for the tubal ligation procedure alone.

She said the doctor assured her the extra treatment for endometriosis would cost her little, if anything. Then the bill came. The Patient: Jamie Holmes, 38, of Lynden, Washington, who was insured by Premera Blue Cross at the time.

Medical Services: A tubal ligation operation, plus treatment of endometriosis found during the surgery. Service Provider: Pacific Rim Outpatient Surgery Center of Bellingham, Washington, which has since been purchased, closed, and reopened under a new name. Total Bill: $9,620.

Insurance paid $1,262 to the in-network center. After adjusting for prices allowed under the insurer's contract, the center billed Holmes $2,605. A collection age.