HSI Leadership and Management Team
BOARD OF DIRECTORS
Edward Loss
Chairperson/President
Vice President Finance
Tri-Valley Worldwide Moving & Storage
Ron Marblestone
Secretary/Treasurer
Attorney
Ronald Banks MD, MPH
Rear Admiral and Assistant Surgeon General
United Public Health Service, Retired
Jan Glenn-Davis
Deputy Chief, BART Police Dept.
Sylvia Fox
PhD Associate Professor, Samuel Merritt University
John Herkenhoff LMFT
Jennifer Leinbach
Director of Development, Major Gifts, Cal State East Bay
Beatrice Pressley PhD
Professor, Retired, Cal State Hayward
Keith Lewis
Executive Director, Horizon Services, Inc.
SENIOR MANAGEMENT
Keith Lewis
Executive Director
Karen Andrews
Finance Director
Jan Markwart
Operations Director
CLINICAL SERVICES DIRECTOR
Janeen Smith MFT
PROGRAM DIRECTORS
Linda Blaine – Cherry Hill Detox Services
Lee Bennett – Horizon South
Rochelle Collins – Project Eden
Joan Diedrich – Palm Ave Detox
Sarah Ashbrook – Cronin House
Elaine Lopes - Chrysalis
Linda Pratt - CommPre
