Alta Health Strategies Inc., a Salt Lake-based company providing health care services, has introduced a provider network in Phoenix and Tucson, Ariz., where 28 Alta CareNetwork hospitals and 347 physicians are located.

The Alta provider network management services will be integrated with Alta's claims administration, utilization review and health data analysis services supported by a full integrated system that allows for more effective cost control for corporation health benefit plans.Carole L. Kennedy, senior vice president, said Alta also has provider networks operating in California, New Mexico, southwestern Ohio and northern Kentucky. The company plans to introduce a gatekeeper model provider network in addition to expanding its network to include Utah, Colorado and Texas early in 1989.