sierra vista

Scott Wartelle

The Central Coast Market – Sierra Vista Regional Medical Center in San Luis Obispo and Twin Cities Community Hospital in Templeton – has announced several changes to its executive leadership team effective Aug. 26, 2019.

“Having this new model of Financial and Human Resource leadership will improve service, eliminate redundancy, leverage synergies, and enhance our efficiencies overall,” said Mark Lisa, CEO of Sierra Vista and Twin Cities. “We are thrilled to have each in these new roles that will help improve all aspects of support to all of our caregivers.”

Sierra Vista

Brenda Pettit

Scott Wartelle has been appointed the Central Coast Market Chief Financial Officer (CFO). In this position, Wartelle will be responsible for the financial strategic direction and leadership for the market, which includes both Sierra Vista and Twin Cities. Wartelle has been Sierra Vista’s CFO since February of 2019 and has been with Tenet Healthcare since 2013. He is a member of the Healthcare Financial Management Association and graduated from the Tenet Finance Academy in 2015.

Brenda Pettit has been appointed the Central Coast Market Assistant Chief Financial Officer, supporting the Market CFO in developing a Market Finance Service Center and integrating fiscal operations across the market. Pettit joined Tenet in 2016, was appointed Market Controller in 2017 and is a current participant in Tenet’s CFO Development Program.

sierra vista

Diane McCluskey

Diane McCluskey has been appointed Central Coast Market Chief Human Resources Officer (CHRO). In her new and expanded role, McCluskey will work toward integrating and enhancing Human Resources operations at both hospitals, and developing a Human Resources Service Center to best meet the needs of nearly 1,300 employees. She previously served as CHRO at Twin Cities since 2016 and has been with Tenet for over 30 years.

About Sierra Vista Regional Medical Center

As the largest hospital in San Luis Obispo County, Sierra Vista Regional Medical Center strives to produce optimal outcomes and exceptional patient experiences to the community it serves. With 162 beds, Sierra Vista puts advanced technology into the hands of experienced medical specialists to deliver quality healthcare. High-level services include neurosurgery, orthopedics, obstetrics, perinatology (high-risk pregnancy), neonatology (high-risk newborn care), pediatrics, cancer care and trauma. Sierra Vista houses the largest Level III Neonatal Intensive Care Unit between Santa Barbara and Salinas, the only dedicated pediatric unit in San Luis Obispo County and serves as the county’s designated trauma center. Sierra Vista is fully accredited by The Joint Commission and has been serving the community since 1959. To learn more about Sierra Vista, please visit