LEBANON — West Central Behavioral Health has hired an interim chief executive, according to a Monday news release.

Alexander J. Horvath will serve as interim president and CEO while the Lebanon-based community based mental health center conducts a national search to replace Roger Osmun, who left the position earlier this month.

Horvath has served as administrative director of the Dartmouth Health Department of Psychiatry since 2019, Dr. Will Torrey, West Central’s interim board chairman, said in an email. Horvath also is a consultant, and has held previous jobs at Dartmouth-Hitchcock as administrative director of the telehealth center and as a practice manager for the heart and vascular center. He previously served as CFO for the Clara Martin Center, the mental health center serving Vermont’s Orange County.

“The West Central board contracted with Dartmouth Health for (Horvath’s) services and is confident he will contribute to our community in this important role,” Torrey, who is chairman of the Department of Psychiatry for Dartmouth Health and Geisel School of Medicine, said.

Osmun, a psychologist, had led West Central since September 2019, through the COVID-19 pandemic and adaptations required of it, including teletherapy. He also worked to develop mobile mental health services and to consolidate administrative offices, the release said. He replaced Suellen Griffin, who retired after holding the post for about 12 years.

Torrey declined to comment on the circumstances of Osmun’s departure “except to thank him for the effort he put in on behalf of the organization and community.”

West Central, which has offices in Lebanon, Claremont and Newport, provides mental health and substance use disorder treatment for people in Sullivan and lower Grafton counties.