• PhyCor (Nashville, TN) said it doesn’t know why its stock jumped higher and traded on volume more than 15 times its daily average one day last week. PhyCor’s shares closed that day up 53 cents. While CEO Joseph Hutts said he doesn’t know what is pushing up the company’s stock, he said he is optimistic about PhyCor’s future.

• Physician Practice Services (Newark, NJ) plans to begin selling Passport Health Communication’s (Franklin, TN) Internet-based product, Passport OneSource, to its more than 400 managed physicians. Passport OneSource is an Internet-based service that provides physician offices and hospitals secure, real time access to critical healthcare administrative data 24 hours a day.

• IntegraMed America (Purchase, NY) elected Aaron Lifchez chairman of the board. In addition, Michael Levy was elected vice chairman of the board. Both physicians, Lifchez is president of Fertility Centers of Illinois, and Levy is president of Shady Grove Fertility Reproductive Science Centers in Washington, DC.

• Sierra Health Services (Las Vegas) is planning to create a centralized physician practice management organization to service The Medical Group of Texas group practice. The new division is part of a restructuring of its Dallas/Fort Worth, TX, operations that will affect its Texas Health Choice managed health plan. The restructuring will involve changes in senior management at the Texas facilities, Sierra said.